{"title":"Stearns IR Series SINPAC Switches","description":"","products":[{"product_id":"475102515ub3-stearns-sinpac-instant-reversing-switch","title":"475102515UB3 Stearns SINPAC Instant Reversing Switch","description":"\u003chtmlonly\u003e\r\u003cbr\u003e\u003clink rel=\"stylesheet\" href=\"\/Static\/css\/VendorBranding\/Genericproduct.css\"\u003e\r\u003cbr\u003e\t\u003cheader class=\"productspecifications-header\"\u003e\r\u003cbr\u003e\t\t\u003ch3\u003eIR Series for Capacitor Start Motors\u003c\/h3\u003e\r\u003cbr\u003e\t\u003c\/header\u003e\r\u003cbr\u003e\u003ch3\u003e\u003c\/h3\u003e\n\u003cp\u003eBasic Operation\r\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eBidirectional motors - those that can rotate in either direction – are of two classes: 1. Reversing motors, which can change from full speed in one direction to full speed in the opposite direction. 2. Reversible motors, which can be reversed only when the motor is not running, or is running below cut out speed. Some motor manufacturers distinguish between quick reversing and instant reversing. A quick reversing motor requires a time delay of approximately 1\/25th of a second or more for the switching circuitry to react. An instant reversing motor requires absolutely no time delay. The standard SINPAC Switch can be used on reversible and reversing motors. The SINPAC IR Series Switch provides the function of a direction sensing centrifugal switch and makes a reversible capacitor start motor into an instant reversing motor. \u003c\/p\u003e\r\u003cbr\u003e\r\u003cbr\u003e\u003cp\u003eIn order to reverse a single-phase motor, it is necessary to reverse the polarity of either the start or main winding, but not both at the same time. The reversal of the winding is accomplished with an external reversing switch or contactor that is not part of the SINPAC Switch. SINPAC Instant Reverse Switch is not dependent upon how quickly the user operates the reversing switch, but only that the reversing switch did change states, i.e., forward to reverse, or vice versa. The SINPAC Switch detects the change in the phase shift between the main and start windings, and the logic circuit instantly actuates the starting switch, causing the start circuit to be reconnected to line voltage. This connection causes the motor to decelerate and then reaccelerate in the opposite direction. The SINPAC IR and IVR Series switches interrupt the start circuit current after the motor has accelerated to the cut out speed, and reconnect the start circuit whenever the circuit senses the motor speed has fallen to cut in speed (usually about 50% of synchronous motor speed). \u003c\/p\u003e\r\u003cbr\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003e1. Electrically Protected:\u003c\/b\u003e Designed to filter out electrical noise, so there is no concern of random switch malfunction.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003e2. Universal Design:\u003c\/b\u003e 50\/60 Hz operation. Will work on 2, 4 or 6 pole motors of any manufacturer. Reduced inventory.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003e3. Line Voltage Compensation:\u003c\/b\u003e No modifications or changes are required for line voltage variations. SINPAC Switches will operate in areas susceptible to brown-outs or low voltage due to long wiring runs. Line voltage compansation results in less stress on the starting capacitor due to overvoltage.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003e4. Reduced Installation Time:\u003c\/b\u003e Easily accessible 1\/4 inch terminals and mounting, reduce the amount of time required to install SINPAC Switches or to change out mechanical switches.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003e5. Transient Protection:\u003c\/b\u003e Transient protection tested per IEEE C62.41 – 1991 Category A3.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003e6. Soldered Heat Sink:\u003c\/b\u003e High cycling.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003e7. Phase Comparator Logic:\u003c\/b\u003e Allows Instant Reverse operation (no time delay).\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003e8. Restart Capability:\u003c\/b\u003e When motor speed drops below 50% of synchronous speed, the start circuit is reconnected to reinitiate starting torque.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003e9.Environmentally Protected:\u003c\/b\u003e Immune to moisture, dust, dirt, shock and vibration.\u003c\/p\u003e\r\u003cbr\u003e\r\u003cbr\u003e\u003cdiv class=\"productspecifications\"\u003e\r\u003cbr\u003e\t\t\u003ch3\u003eGeneral Information\u003c\/h3\u003e\r\u003cbr\u003e\t\u003ctable\u003e\r\u003cbr\u003e\t\t\u003ctbody\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eTypical Max Motor Horsepower\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e1\/2 HP\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eTypical Full Load Motor Nameplate Current Rating\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e12 Amps @ 115 Volts\u003cbr\u003e12\/6 Amps @ 115\/230 Volts\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eSwitch Rating \u0026amp; Permissible Maximum Start Capacitor Current\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e25 Amps\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eStart Circuit Voltage\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e115\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eCut Out Voltage (Typical)\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e147 Volts\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eCut In Voltage (Typical)\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e33 Volts\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003ePackage Style\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e15\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eCatalog Number\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003eIR25-147\u003cbr\u003eIR-25-147\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003ePart Number(s)\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e4-7-51025-15-UB3\u003cbr\u003e475102515UBK (Kit)\u003cbr\u003eReplaces obsolete 475102515UB1\u003cbr\u003eSAP Part#10550708\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eOperating Temperature\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e-40°C to 65 °C (-40 °F to 149°F)\u003cbr\u003efor operation between 65°C and 85°C (149°F and 185°F), consult factory.\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eOperating Voltage\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e115 Vac SINPAC Switch: 90-130 Vac.\u003cbr\u003eFor dual voltage motor equipped with center-tapped main winding: 90-130 Vac or 180-265 Vac.\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eDiameter\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e1.83” Max\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eLength\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e3.38” Max\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eConnections\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e4 – 1\/4” Male Quick Connect tabs\/spade terminals\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eUPC\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e662327713812\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\u003c\/tbody\u003e\r\u003cbr\u003e\t\u003c\/table\u003e\r\u003cbr\u003e\r\u003cbr\u003e\u003cp\u003e\u003c\/p\u003e\n\u003ch3\u003eAdditional Features\u003c\/h3\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003eCompletely Solid-State with No Moving Parts: \u003c\/b\u003e SINPAC Switches have no physical constraints to affect their operation. No wearing parts mean high cycling, no arcing contact. Low warranty.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003eSilent Operation: \u003c\/b\u003eNo switch noise\u003c\/p\u003e\r\u003cbr\u003e UL Recognition (E71115) to US and Canadian Standards\r\u003cbr\u003e\n\u003c\/div\u003e\r\u003cbr\u003e\u003cp\u003e\u003c\/p\u003e\n\u003ch3\u003eSelection\u003c\/h3\u003e\r\u003cbr\u003e\u003cp\u003eMotor hp ratings are typical. For an accurate selection procedure, measure start capacitor current during a normal start or at locked rotor and select a SINPAC Switch with higher maximum current rating than that measured.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e1. Be sure switch series matches motor type.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e2. Be sure switch voltage rating matches auxiliary (start) circuit voltage rating.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e3. Selection can be based on actual measurement of start capacitor current or two times the motor nameplate FLA rating.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e4. Switch current rating must match or exceed the motor start capacitor current requirements. Always select a SINPAC Switch with the next higher current rating for:\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e  a) High cycling applications.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e  b) Long acceleration time.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e  c) High ambients: Greater than 55° C.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e5. To assure proper motor operation, the voltage across the start winding must reach the SINPAC Switch cut out reference voltage between 70% to 85% of motors synchronous speed.\r\u003cbr\u003eSINPAC Switches are line voltage compensated. Changes in the line voltage will not effect system operation unless an overload condition causes reduced running speed, along with reduced voltage across the start winding.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e6. Higher current switches can be used in place of lower rated switches of the same series.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e\u003c\/p\u003e\n\u003ch3\u003e Line Voltage Compensation Charts\u003c\/h3\u003e\r\u003cbr\u003e\u003cp\u003e  Induced voltage across the start winding is directly proportional to motor speed and line voltage. All SINPAC Switches use this voltage to switch the start capacitor out of the circuit. Your motor with a SINPAC Switch must generate a voltage greater than the switch cut-out voltage to assure cut-out of the start capacitor. Refer to charts ABOVE.\u003c\/p\u003e\r\u003cbr\u003e\u003c\/htmlonly\u003e","brand":"Stearns\/Rexnord Corporation","offers":[{"title":"Default Title","offer_id":43915285463133,"sku":"IR25-147","price":208.75,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0704\/4005\/8973\/files\/E3UBBJ97Q6QUF8U0.jpg?v=1766443927"},{"product_id":"475104015ua3-stearns-sinpac-instant-reversing-switch","title":"475104015UA3 Stearns SINPAC Instant Reversing Switch","description":"\u003chtmlonly\u003e\r\u003cbr\u003e\u003clink rel=\"stylesheet\" href=\"\/Static\/css\/VendorBranding\/Genericproduct.css\"\u003e\r\u003cbr\u003e\t\u003cheader class=\"productspecifications-header\"\u003e\r\u003cbr\u003e\t\t\u003ch3\u003eIR Series for Capacitor Start Motors\u003c\/h3\u003e\r\u003cbr\u003e\t\u003c\/header\u003e\r\u003cbr\u003e\u003ch3\u003e\u003c\/h3\u003e\n\u003cp\u003eBasic Operation\r\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eBidirectional motors - those that can rotate in either direction – are of two classes: 1. Reversing motors, which can change from full speed in one direction to full speed in the opposite direction. 2. Reversible motors, which can be reversed only when the motor is not running, or is running below cut out speed. Some motor manufacturers distinguish between quick reversing and instant reversing. A quick reversing motor requires a time delay of approximately 1\/25th of a second or more for the switching circuitry to react. An instant reversing motor requires absolutely no time delay. The standard SINPAC Switch can be used on reversible and reversing motors. The SINPAC IR Series Switch provides the function of a direction sensing centrifugal switch and makes a reversible capacitor start motor into an instant reversing motor. \u003c\/p\u003e\r\u003cbr\u003e\r\u003cbr\u003e\u003cp\u003eIn order to reverse a single-phase motor, it is necessary to reverse the polarity of either the start or main winding, but not both at the same time. The reversal of the winding is accomplished with an external reversing switch or contactor that is not part of the SINPAC Switch. SINPAC Instant Reverse Switch is not dependent upon how quickly the user operates the reversing switch, but only that the reversing switch did change states, i.e., forward to reverse, or vice versa. The SINPAC Switch detects the change in the phase shift between the main and start windings, and the logic circuit instantly actuates the starting switch, causing the start circuit to be reconnected to line voltage. This connection causes the motor to decelerate and then reaccelerate in the opposite direction. The SINPAC IR and IVR Series switches interrupt the start circuit current after the motor has accelerated to the cut out speed, and reconnect the start circuit whenever the circuit senses the motor speed has fallen to cut in speed (usually about 50% of synchronous motor speed). \u003c\/p\u003e\r\u003cbr\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003e1. Electrically Protected:\u003c\/b\u003e Designed to filter out electrical noise, so there is no concern of random switch malfunction.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003e2. Universal Design:\u003c\/b\u003e 50\/60 Hz operation. Will work on 2, 4 or 6 pole motors of any manufacturer. Reduced inventory.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003e3. Line Voltage Compensation:\u003c\/b\u003e No modifications or changes are required for line voltage variations. SINPAC Switches will operate in areas susceptible to brown-outs or low voltage due to long wiring runs. Line voltage compansation results in less stress on the starting capacitor due to overvoltage.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003e4. Reduced Installation Time:\u003c\/b\u003e Easily accessible 1\/4 inch terminals and mounting, reduce the amount of time required to install SINPAC Switches or to change out mechanical switches.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003e5. Transient Protection:\u003c\/b\u003e Transient protection tested per IEEE C62.41 – 1991 Category A3.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003e6. Soldered Heat Sink:\u003c\/b\u003e High cycling.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003e7. Phase Comparator Logic:\u003c\/b\u003e Allows Instant Reverse operation (no time delay).\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003e8. Restart Capability:\u003c\/b\u003e When motor speed drops below 50% of synchronous speed, the start circuit is reconnected to reinitiate starting torque.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003e9.Environmentally Protected:\u003c\/b\u003e Immune to moisture, dust, dirt, shock and vibration.\u003c\/p\u003e\r\u003cbr\u003e\r\u003cbr\u003e\u003cdiv class=\"productspecifications\"\u003e\r\u003cbr\u003e\t\t\u003ch3\u003eGeneral Information\u003c\/h3\u003e\r\u003cbr\u003e\t\u003ctable\u003e\r\u003cbr\u003e\t\t\u003ctbody\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eTypical Max Motor Horsepower\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e2 HP\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eTypical Full Load Motor Nameplate Current Rating\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e20 Amps @ 115 Volts\u003cbr\u003e20\/10 Amps @ 115\/230 Volts\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eSwitch Rating \u0026amp; Permissible Maximum Start Capacitor Current\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e40 Amps\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eStart Circuit Voltage\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e115\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eCut Out Voltage (Typical)\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e130 Volts\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eCut In Voltage (Typical)\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e30 Volts\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003ePackage Style\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e15\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eCatalog Number\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003eIR40-130\u003cbr\u003eIR-40-130\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003ePart Number(s)\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e4-7-51040-15-UA3\u003cbr\u003e475104015UA3\u003cbr\u003e475104015UA1 (Old, Obsolete Part Number)\u003cbr\u003e475104015UAK (Kit)\u003cbr\u003eHoist OEM # 473008315U01\u003cbr\u003eSAP Part# 10550712\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eOperating Temperature\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e-40°C to 65 °C (-40 °F to 149°F)\u003cbr\u003efor operation between 65°C and 85°C (149°F and 185°F), consult factory.\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eOperating Voltage\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e115 Vac SINPAC Switch: 90-130 Vac.\u003cbr\u003eFor dual voltage motor equipped with center-tapped main winding: 90-130 Vac or 180-265 Vac.\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eDiameter\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e1.83” Max\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eLength\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e3.38” Max\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eConnections\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e4 – 1\/4” Male Quick Connect tabs\/spade terminals\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eUPC\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e662327713836\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\u003c\/tbody\u003e\r\u003cbr\u003e\t\u003c\/table\u003e\r\u003cbr\u003e\r\u003cbr\u003e\u003cp\u003e\u003c\/p\u003e\n\u003ch3\u003eAdditional Features\u003c\/h3\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003eCompletely Solid-State with No Moving Parts: \u003c\/b\u003e SINPAC Switches have no physical constraints to affect their operation. No wearing parts mean high cycling, no arcing contact. Low warranty.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003eSilent Operation: \u003c\/b\u003eNo switch noise\u003c\/p\u003e\r\u003cbr\u003e UL Recognition (E71115) to US and Canadian Standards\r\u003cbr\u003e\n\u003c\/div\u003e\r\u003cbr\u003e\u003cp\u003e\u003c\/p\u003e\n\u003ch3\u003eSelection\u003c\/h3\u003e\r\u003cbr\u003e\u003cp\u003eMotor hp ratings are typical. For an accurate selection procedure, measure start capacitor current during a normal start or at locked rotor and select a SINPAC Switch with higher maximum current rating than that measured.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e1. Be sure switch series matches motor type.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e2. Be sure switch voltage rating matches auxiliary (start) circuit voltage rating.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e3. Selection can be based on actual measurement of start capacitor current or two times the motor nameplate FLA rating.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e4. Switch current rating must match or exceed the motor start capacitor current requirements. Always select a SINPAC Switch with the next higher current rating for:\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e  a) High cycling applications.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e  b) Long acceleration time.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e  c) High ambients: Greater than 55° C.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e5. To assure proper motor operation, the voltage across the start winding must reach the SINPAC Switch cut out reference voltage between 70% to 85% of motors synchronous speed.\r\u003cbr\u003eSINPAC Switches are line voltage compensated. Changes in the line voltage will not effect system operation unless an overload condition causes reduced running speed, along with reduced voltage across the start winding.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e6. Higher current switches can be used in place of lower rated switches of the same series.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e\u003c\/p\u003e\n\u003ch3\u003e Line Voltage Compensation Charts\u003c\/h3\u003e\r\u003cbr\u003e\u003cp\u003e  Induced voltage across the start winding is directly proportional to motor speed and line voltage. All SINPAC Switches use this voltage to switch the start capacitor out of the circuit. Your motor with a SINPAC Switch must generate a voltage greater than the switch cut-out voltage to assure cut-out of the start capacitor. Refer to charts ABOVE.\u003c\/p\u003e\r\u003cbr\u003e\u003c\/htmlonly\u003e","brand":"Stearns\/Rexnord Corporation","offers":[{"title":"Default Title","offer_id":43915285495901,"sku":"IR40-130","price":291.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0704\/4005\/8973\/files\/4P8ODU97Q6QUF8U0.jpg?v=1766443926"},{"product_id":"475104015u03-stearns-sinpac-instant-reversing-switch","title":"475104015U03 Stearns SINPAC Instant Reversing Switch","description":"\u003chtmlonly\u003e\r\u003cbr\u003e\u003clink rel=\"stylesheet\" href=\"\/Static\/css\/VendorBranding\/Genericproduct.css\"\u003e\r\u003cbr\u003e\t\u003cheader class=\"productspecifications-header\"\u003e\r\u003cbr\u003e\t\t\u003ch3\u003eIR Series for Capacitor Start Motors\u003c\/h3\u003e\r\u003cbr\u003e\t\u003c\/header\u003e\r\u003cbr\u003e\u003ch3\u003e\u003c\/h3\u003e\n\u003cp\u003eBasic Operation\r\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eBidirectional motors - those that can rotate in either direction – are of two classes: 1. Reversing motors, which can change from full speed in one direction to full speed in the opposite direction. 2. Reversible motors, which can be reversed only when the motor is not running, or is running below cut out speed. Some motor manufacturers distinguish between quick reversing and instant reversing. A quick reversing motor requires a time delay of approximately 1\/25th of a second or more for the switching circuitry to react. An instant reversing motor requires absolutely no time delay. The standard SINPAC Switch can be used on reversible and reversing motors. The SINPAC IR Series Switch provides the function of a direction sensing centrifugal switch and makes a reversible capacitor start motor into an instant reversing motor. \u003c\/p\u003e\r\u003cbr\u003e\r\u003cbr\u003e\u003cp\u003eIn order to reverse a single-phase motor, it is necessary to reverse the polarity of either the start or main winding, but not both at the same time. The reversal of the winding is accomplished with an external reversing switch or contactor that is not part of the SINPAC Switch. SINPAC Instant Reverse Switch is not dependent upon how quickly the user operates the reversing switch, but only that the reversing switch did change states, i.e., forward to reverse, or vice versa. The SINPAC Switch detects the change in the phase shift between the main and start windings, and the logic circuit instantly actuates the starting switch, causing the start circuit to be reconnected to line voltage. This connection causes the motor to decelerate and then reaccelerate in the opposite direction. The SINPAC IR and IVR Series switches interrupt the start circuit current after the motor has accelerated to the cut out speed, and reconnect the start circuit whenever the circuit senses the motor speed has fallen to cut in speed (usually about 50% of synchronous motor speed). \u003c\/p\u003e\r\u003cbr\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003e1. Electrically Protected:\u003c\/b\u003e Designed to filter out electrical noise, so there is no concern of random switch malfunction.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003e2. Universal Design:\u003c\/b\u003e 50\/60 Hz operation. Will work on 2, 4 or 6 pole motors of any manufacturer. Reduced inventory.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003e3. Line Voltage Compensation:\u003c\/b\u003e No modifications or changes are required for line voltage variations. SINPAC Switches will operate in areas susceptible to brown-outs or low voltage due to long wiring runs. Line voltage compansation results in less stress on the starting capacitor due to overvoltage.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003e4. Reduced Installation Time:\u003c\/b\u003e Easily accessible 1\/4 inch terminals and mounting, reduce the amount of time required to install SINPAC Switches or to change out mechanical switches.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003e5. Transient Protection:\u003c\/b\u003e Transient protection tested per IEEE C62.41 – 1991 Category A3.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003e6. Soldered Heat Sink:\u003c\/b\u003e High cycling.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003e7. Phase Comparator Logic:\u003c\/b\u003e Allows Instant Reverse operation (no time delay).\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003e8. Restart Capability:\u003c\/b\u003e When motor speed drops below 50% of synchronous speed, the start circuit is reconnected to reinitiate starting torque.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003e9.Environmentally Protected:\u003c\/b\u003e Immune to moisture, dust, dirt, shock and vibration.\u003c\/p\u003e\r\u003cbr\u003e\r\u003cbr\u003e\u003cdiv class=\"productspecifications\"\u003e\r\u003cbr\u003e\t\t\u003ch3\u003eGeneral Information\u003c\/h3\u003e\r\u003cbr\u003e\t\u003ctable\u003e\r\u003cbr\u003e\t\t\u003ctbody\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eTypical Max Motor Horsepower\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e2 HP\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eTypical Full Load Motor Nameplate Current Rating\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e20 Amps @ 115 Volts\u003cbr\u003e20\/10 Amps @ 115\/230 Volts\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eSwitch Rating \u0026amp; Permissible Maximum Start Capacitor Current\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e40 Amps\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eStart Circuit Voltage\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e115\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eCut Out Voltage (Typical)\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e165 Volts\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eCut In Voltage (Typical)\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e37 Volts\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003ePackage Style\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e15\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eCatalog Number\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003eIR40-165\u003cbr\u003eIR-40-165\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003ePart Number(s)\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e4-7-51040-15-U03\u003cbr\u003e475104015U03\u003cbr\u003e475104015U01 (Old, Obsolete Part Number)\u003cbr\u003e475104015U0K (Kit)\u003cbr\u003eLeeson 002789.02\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eOperating Temperature\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e-40°C to 65 °C (-40 °F to 149°F)\u003cbr\u003efor operation between 65°C and 85°C (149°F and 185°F), consult factory.\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eOperating Voltage\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e115 Vac SINPAC Switch: 90-130 Vac.\u003cbr\u003eFor dual voltage motor equipped with center-tapped main winding: 90-130 Vac or 180-265 Vac.\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eDiameter\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e1.83” Max\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eLength\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e3.38” Max\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\t\u003ctr\u003e\r\u003cbr\u003e\t\t\t\t\u003cth\u003eConnections\u003c\/th\u003e\r\u003cbr\u003e\t\t\t\t\u003ctd\u003e4 – 1\/4” Male Quick Connect tabs\/spade terminals\u003c\/td\u003e\r\u003cbr\u003e\t\t\t\u003c\/tr\u003e\r\u003cbr\u003e\t\t\u003c\/tbody\u003e\r\u003cbr\u003e\t\u003c\/table\u003e\r\u003cbr\u003e\r\u003cbr\u003e\u003cp\u003e\u003c\/p\u003e\n\u003ch3\u003eAdditional Features\u003c\/h3\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003eCompletely Solid-State with No Moving Parts: \u003c\/b\u003e SINPAC Switches have no physical constraints to affect their operation. No wearing parts mean high cycling, no arcing contact. Low warranty.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e\u003cb\u003eSilent Operation: \u003c\/b\u003eNo switch noise\u003c\/p\u003e\r\u003cbr\u003e UL Recognition (E71115) to US and Canadian Standards\r\u003cbr\u003e\n\u003c\/div\u003e\r\u003cbr\u003e\u003cp\u003e\u003c\/p\u003e\n\u003ch3\u003eSelection\u003c\/h3\u003e\r\u003cbr\u003e\u003cp\u003eMotor hp ratings are typical. For an accurate selection procedure, measure start capacitor current during a normal start or at locked rotor and select a SINPAC Switch with higher maximum current rating than that measured.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e1. Be sure switch series matches motor type.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e2. Be sure switch voltage rating matches auxiliary (start) circuit voltage rating.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e3. Selection can be based on actual measurement of start capacitor current or two times the motor nameplate FLA rating.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e4. Switch current rating must match or exceed the motor start capacitor current requirements. Always select a SINPAC Switch with the next higher current rating for:\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e  a) High cycling applications.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e  b) Long acceleration time.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e  c) High ambients: Greater than 55° C.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e5. To assure proper motor operation, the voltage across the start winding must reach the SINPAC Switch cut out reference voltage between 70% to 85% of motors synchronous speed.\r\u003cbr\u003eSINPAC Switches are line voltage compensated. Changes in the line voltage will not effect system operation unless an overload condition causes reduced running speed, along with reduced voltage across the start winding.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e6. Higher current switches can be used in place of lower rated switches of the same series.\u003c\/p\u003e\r\u003cbr\u003e\u003cp\u003e\u003c\/p\u003e\n\u003ch3\u003e Line Voltage Compensation Charts\u003c\/h3\u003e\r\u003cbr\u003e\u003cp\u003e  Induced voltage across the start winding is directly proportional to motor speed and line voltage. All SINPAC Switches use this voltage to switch the start capacitor out of the circuit. Your motor with a SINPAC Switch must generate a voltage greater than the switch cut-out voltage to assure cut-out of the start capacitor. Refer to charts ABOVE.\u003c\/p\u003e\r\u003cbr\u003e\u003c\/htmlonly\u003e","brand":"Stearns\/Rexnord Corporation","offers":[{"title":"Default Title","offer_id":43915285528669,"sku":"IR40-165","price":169.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0704\/4005\/8973\/files\/M3CUDU97Q6QUF8U0.jpg?v=1766443926"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0704\/4005\/8973\/collections\/J36F251VR8K0FAR0.jpg?v=1766430646","url":"https:\/\/witmermotor.com\/collections\/ir-series.oembed","provider":"Witmer Motor Service","version":"1.0","type":"link"}