SOLID-STATE RELAYS DATA SHEET page 1/13 Form 859-011127 Overview In 1974, Opto 22 introduced the first liquid epoxy-filled line of power solid-state relays (SSR). This innovation in SSR design greatly improved the reliability and reduced the cost of manufacturing. At that time, we also incorporated into our manufacturing process 100% testing of every relay produced under full load conditions. By 1978, Opto 22 had gained such a reputation for reliability that we were recognized as the world's leading manufacturer of solid-state relays. Through continuous manufacturing improvements and the same 100% testing policy established 22 years ago, Opto 22 is still recognized today for the very high quality and reliability of its complete line of solid-state relays. Index Description Power Series Page Introduction 1 All Models: General Specifications 2 120/240 Volt AC Power Series: General Specifications 3 120/240 Volt AC Power Series: Surge Current Data, Thermal Data, and Dimensions 4 480/575 Volt AC Power Series: General Specifications 5 120/240 Volt AC Power Series Plastic Package (Z Series): General Specifications 6 AC Power Printed Circuit Series: General Specifications 7 DC Switching Series: General Specifications 8 Z Series APPLICATION TIPS P Series Heat Sink Calculation, Duty Cycle Calculation 10 Transformer Loads, Solenoid Loads, and Lamp Loads 11 Solid-State Relays in Series, Lamp Loads, Heater Loads 12 Motor Loads 13 MP Series Opto 22 43044 Business Park Drive Temecula, CA 92590 Phone: (909)695-3000 (800)321-OPTO Fax: (909)695-3095 Internet: www.opto22.com Inside Sales: (800)452-OPTO Product Support: (800)TEK-OPTO (909)695-3080 Fax: (909)695-3017 E-mail: support@opto22.com FaxBack: (800)474-OPTO DATA SHEET SOLID-STATE RELAYS page 2/13 Form 859-011127 Specifications All Models * 4,000 V optical isolation input to output * DV/DT Off-state: 200 volts per microsecond * Zero voltage turn-on * DV/DT commutating: snubbed for rated current at 0.5 power factor * Turn-on time: 1/2 cycle maximum * UL recognized * Turn-off time: 1/2 cycle maximum * CSA certified * Operating frequency: 25 to 65 Hz (operates at 400 Hz with six times off-state leakage) * CE component * Coupling capacitance input to output: 8 pF maximum * See Opto 22 form #986 for torque specifications. Safety Cover for Power Series SSRs A plastic safety cover (Opto 22 part number SAFETY COVER) is optionally available for Opto 22 Power Series SSRs. The safety cover reduces the chance of accidental contact with relay terminals, while providing access holes for test instrumentation. Optional plastic safety cover installed on a Power Series SSR Opto 22 43044 Business Park Drive Temecula, CA 92590 Phone: (909)695-3000 (800)321-OPTO Fax: (909)695-3095 Internet: www.opto22.com Inside Sales: (800)452-OPTO Product Support: (800)TEK-OPTO (909)695-3080 Fax: (909)695-3017 E-mail: support@opto22.com FaxBack: (800)474-OPTO SOLID-STATE RELAYS DATA SHEET page 3/13 Form 859-011127 Specifications AC Power Series - 120/240 Volt Opto 22 provides a full range of power series relays with a wide variety of voltage (110-575) and current options (3-45 amps). All Power Series relays feature 4,000 volts of optical isolation and have a high PRV rating. Nominal Nominal 1 cycle Nominal Signal Model Current Surge AC Line Input Number Voltage Rating (Amps) Resistance (Amps) Peak (Ohms) 120D3 120D10 120 120 3 10 85 110 Signal Pick-up Voltage Off-State Peak Maximum Operating 2 Signal Leakage I t Rating Repetitive Output Voltage t=8.3 Drop-out (mA) Voltage Voltage (ms) Voltage Maximum Range Maximum Drop (Volts AC) ** Isolation Voltage qjc* Dissipation (C/Watt) (Watts/Amp) 1000 3VDC (32V allowed) 1 VDC 600 1.6 volts 2.5mA 12-140 30 4,000VRMS 11 1.7 1000 3VDC (32V allowed) 1 VDC 600 1.6 volts 7 mA 12-140 50 4,000VRMS 1.3 1.6 1 VDC 600 1.6 volts 7 mA 12-140 250 4,000VRMS 1.2 1.3 120D25 120 25 250 1000 3VDC (32V allowed) 120D45 120 45 650 1000 3VDC (32V allowed) 1 VDC 600 1.6 volts 7 mA 12-140 1750 4,000VRMS 0.67 0.9 1000 3VDC (32V allowed) 1 VDC 600 1.6 volts 5 mA 24-280 30 4,000VRMS 11 1.7 1 VDC 600 1.6 volts 14 mA 24-280 50 4,000VRMS 1.3 1.6 240D3 240 3 85 240D10 240 10 110 1000 3VDC (32V allowed) 240D25 240 25 250 1000 3VDC (32V allowed) 1 VDC 600 1.6 volts 14 mA 24-280 250 4,000VRMS 1.2 1.3 1000 3VDC (32V allowed) 1 VDC 600 1.6 volts 14 mA 24-280 1750 4,000VRMS 0.67 0.9 1 VDC 800 1.6 volts 12 mA 24-420 250 4,000VRMS 1.2 1.3 240D45 240 45 650 380D25 380 25 250 1000 3VDC (32V allowed) 380D45 380 45 650 1000 3VDC (32V allowed) 1 VDC 800 1.6 volts 12 mA 24-420 1750 4,000VRMS 0.67 0.9 10 VAC 600 1.6 volts 7 mA 12-140 50 4,000VRMS 1.3 1.6 120A10 120 10 110 33K 85 VAC (280 allowed) 120A25 120 25 250 33K 85 VAC (280 allowed) 10 VAC 600 1.6 volts 7 mA 12-140 250 4,000VRMS 1.2 1.3 240A10 240 10 110 33K 85 VAC (280 allowed) 10 VAC 600 1.6 volts 14 mA 24-280 50 4,000VRMS 1.3 1.6 10 VAC 600 1.6 volts 14 mA 24-280 250 4,000VRMS 1.2 1.3 10 VAC 600 1.6 volts 14 mA 24-280 1750 4,000VRMS 0.67 0.9 240A25 240 25 250 33K 85 VAC (280 allowed) 240A45 240 45 650 33K 85 VAC (280 allowed) Notes: qjc* = Thermal resistance junction to base. Maximum junction temperature is 110C. ** Operating Frequency: 25 to 65 Hz (operates at 400 Hz with 6 times the offstate leakage) Opto 22 43044 Business Park Drive Temecula, CA 92590 Phone: (909)695-3000 (800)321-OPTO Fax: (909)695-3095 Internet: www.opto22.com Inside Sales: (800)452-OPTO Product Support: (800)TEK-OPTO (909)695-3080 Fax: (909)695-3017 E-mail: support@opto22.com FaxBack: (800)474-OPTO SOLID-STATE RELAYS DATA SHEET page 4/13 Form 859-011127 Specifications: AC Power Series - 120/240 Volt (Continued) Thermal Ratings Surge Current Data Time Time* (Seconds) (Cycles) 3-Amp 10-Amp 25-Amp 45-Amp Peak Peak Peak Peak Amps Amps Amps Amps 0.017 1 85 110 250 650 0.050 3 66 85 175 420 0.100 6 53 70 140 320 0.200 12 45 60 112 245 0.500 30 37 50 80 175 1 60 31 40 67 134 2 120 28 33 53 119 3 180 27 32 49 98 4 240 26 31 47 95 5 300 25 30 45 91 10 600 24 28 42 84 Note: *60 HZ. Dimensional Drawings Opto 22 43044 Business Park Drive Temecula, CA 92590 Phone: (909)695-3000 (800)321-OPTO Fax: (909)695-3095 Internet: www.opto22.com Inside Sales: (800)452-OPTO Product Support: (800)TEK-OPTO (909)695-3080 Fax: (909)695-3017 E-mail: support@opto22.com FaxBack: (800)474-OPTO SOLID-STATE RELAYS DATA SHEET page 5/13 Form 859-011127 Specifications AC Power Series - 480/575 Volt DC SERIES: The DC Series delivers isolated DC control to large OEM customers worldwide. AC SERIES: The AC Series offers the ultimate in solid-state reliability. All AC power series relays feature a built-in snubber and zero voltage turn-on. Transient proof models offer selfprotection for noisy electrical environments. Nominal Off-S tate Peak Maximum Leakage Nominal Nominal 1 cycle Signal Signal Signal Current Surge Repetitive Output AC Line Input Pick-up Drop-out (mA) Rating (Amps) Voltage Voltage Voltage Resistance Voltage Voltage Maximum (Amps) Peak Maximum Drop (Ohms) ** Model Number Operating Voltage Range (Volts AC) I2t Rating t=8.3 (ms) Isolation Voltage Dissipation qjc* (C/Watt) (Watts/Amp) 480D10-12 480 10 110 1000 3VDC (32V Allowed) 1 VDC 1200 3.2 volts 11 mA 100-530 50 4,000VRMS 1.2 2.5 480D15-12 480 15 150 1000 3VDC (32V Allowed) 1 VDC 1200 3.2 volts 11 mA 100-530 50 4,000VRMS 1.2 2.5 480D25-12 480 25 250 1000 3VDC (32V Allowed) 1 VDC 1000 1.6 volts 11 mA 100-530 250 4,000VRMS 1.3 1.3 480D45-12 480 45 650 1000 3VDC (32V Allowed) 1 VDC 1000 1.6 volts 11 mA 100-530 1750 4,000VRMS 0.67 0.9 575D15-12 575 15 150 1000 3VDC (32V Allowed) 1 VDC 1200 3.2 volts 15 mA 100-600 90 4,000VRMS 1.2 2.5 575D45-12 575 45 650 1000 3VDC (32V Allowed) 1 VDC 1000 1.6 volts 15 mA 100-600 1750 4,000VRMS 0.67 0.9 Note: qjc* = Thermal resistance junction to base. Maximum junction temperature is 110C. ** Operating Frequency: 25 to 65 Hz (operates at 400 Hz with 6 times the offstate leakage) Dimensional Drawings Thermal Ratings Surge Current Data Time Time*** Second (Cycles) 10-Amp 15-Amp 25-Amp 45-Amp Peak Peak Peak Peak Amps Amps Amps Amps 0.017 1 110 150 250 650 0.050 3 85 140 175 420 0.100 6 70 110 140 320 0.200 12 60 90 112 245 0.500 30 50 70 80 175 1 60 40 55 67 134 2 120 33 49 53 119 3 180 32 47 49 98 4 240 31 43 47 95 5 300 30 40 45 91 10 600 28 35 42 84 Note: ***60 HZ Opto 22 43044 Business Park Drive Temecula, CA 92590 Phone: (909)695-3000 (800)321-OPTO Fax: (909)695-3095 Internet: www.opto22.com Inside Sales: (800)452-OPTO Product Support: (800)TEK-OPTO (909)695-3080 Fax: (909)695-3017 E-mail: support@opto22.com FaxBack: (800)474-OPTO SOLID-STATE RELAYS DATA SHEET page 6/13 Form 859-011127 Specifications AC Power Series - 120/240 Volt Plastic Package (z series) The Z Series employs a unique heat transfer system that makes it possible for Opto 22 to deliver a low-cost, 10-amp, solid-state relay in an all-plastic case. The push-on tool-free quick-connect terminals make the Z Series ideal for highvolume OEM applications. Model Number Nominal Off-State 1 cycle Peak Maximum Leakage Operating I2t Nominal Nominal Signal Signal Signal Repetitive Rating Surge Output Voltage AC Line Current Input Pick-up Drop-out (mA) t=8.3 Rating (Amps) Resistance Voltage Voltage Voltage Voltage Maximum Range Voltage (Amps) Peak Maximum Drop (Volts AC) (ms) (Ohms) ** Isolation Voltage qjc* (C/Watt) Dissipation (Watts/Amp) Z120D10 120 10 110 1000 3VDC (32V allowed) 1 VDC 600 1.6 volts 6 mA 12-140 50 4,000 VRMS 4 1 Z240D10 240 10 110 1000 3VDC (32V allowed) 1 VDC 600 1.6 volts 12 mA 24-280 50 4,000 VRMS 4 1 Notes: jc* = Thermal resistance junction to base. Maximum junction temperature is 110C. ** Operating Frequency: 25 to 65 Hz (operates at 400 Hz with 6 times the offstate leakage) Dimensional Drawings Current vs. Ambient Ratings Surge Current Data Time Second Time*** (Cycles) Peak Amps 0.017 1 110 0.050 3 85 0.100 6 70 0.200 12 60 0.500 30 50 1 60 40 2 120 33 3 180 32 4 240 31 5 300 30 10 600 28 Note: ***60 HZ Opto 22 43044 Business Park Drive Temecula, CA 92590 Phone: (909)695-3000 (800)321-OPTO Fax: (909)695-3095 Internet: www.opto22.com Inside Sales: (800)452-OPTO Product Support: (800)TEK-OPTO (909)695-3080 Fax: (909)695-3017 E-mail: support@opto22.com FaxBack: (800)474-OPTO SOLID-STATE RELAYS DATA SHEET page 7/13 Form 859-011127 Specifications AC Power - Printed Circuit Package (P & MP Series) Nominal 1 cycle Nominal Current Surge AC Line Voltage Rating (Amps) Peak Amps Model N umber Nominal Signal Input Resistance (Ohms) Signal Pick-up Voltage Maximum Off-State Operating Peak Leakage Signal Voltage mA Drop-out Repetitive Output Range Voltage Maximum Voltage Voltage (Volts AC) Drop Maximum ** I2 t Rating t=8.3 (ms) Isolation jc* Dissipation Voltage C/Watt Watts/Amp MP120D2 or P120D2 120 2 20 1000 3VD C*** (32V allowed) 1 VD C 600 1.6 volts 5 mA 12-140 2 4,000 VRMS 20 1.2 MP120D4 or P120D4 120 4 85 1000 3VD C*** (32V allowed) 1 VD C 600 1.6 volts 5 mA 12-140 30 4,000 VRMS 6.5 1.2 MP240D2 or P240D2 240 2 20 1000 3VD C*** (32V allowed) 1 VD C 600 1.6 volts 5 mA 24-280 2 4,000 VRMS 20 1.2 MP240D4 or P240D4 240 4 85 1000 3VD C*** (32V allowed) 1 VD C 600 1.6 volts 5 mA 24-280 30 4,000 VRMS 6.5 1.2 MP380D4 380 4 85 1000 3VD C*** (32V allowed) 1 VD C 800 1.6 volts 5 mA 24-420 30 4,000 VRMS 6.5 1.2 Notes: jc* = Thermal resistance junction to base. Maximum junction temperature is 110C. ** = Operating Frequency: 25 to 65 Hz (operates at 400 Hz with 6 times the offstate leakage) *** = MP Series 24 volts maximum. Surge Current Data Time Time* Second (Cycles) Peak Amps Peak Amps 0.017 1 20 85 0.050 3 18 66 0.100 6 15 53 0.200 12 11 45 0.500 30 9 37 1 60 8.5 31 2 120 8 28 3 180 7.5 27 4 240 7 26 5 300 6.5 25 10 600 6 24 Model P240D4 Model MP240D4 Note: *60 HZ Dimensional Drawings Opto 22 43044 Business Park Drive Temecula, CA 92590 Phone: (909)695-3000 (800)321-OPTO Fax: (909)695-3095 Internet: www.opto22.com Inside Sales: (800)452-OPTO Product Support: (800)TEK-OPTO (909)695-3080 Fax: (909)695-3017 E-mail: support@opto22.com FaxBack: (800)474-OPTO SOLID-STATE RELAYS DATA SHEET page 8/13 Form 859-011127 Description DC Switching Series MP Series Power Series P Series Specifications Operating Voltage Range DC60P or DC60MP DC200P or DC200MP DC60S-3 DC60S-5 5-60 VDC 5-200 VDC 5-60 VDC 5-60 VDC 1.5 volts at 1 amp 1.5 volts at 3 amps 1.5 volts at 5 amps Forward Voltage Drop Nominal Current Rating 3 amps 1 amp 3 amps 5 amps Off-State Blocking 60 VDC 250 VDC 60 VDC 60 VDC Signal Pickup Voltage 3 VDC 32 Volts* allowed 3 VDC 32 Volts* allowed 3 VDC 32 Volts allowed 3 VDC 32 Volts allowed Signal Dropout Voltage 1 VDC 1 VDC 1 VDC 1 VDC 1,000 ohms 1,000 ohms 1 Second Surge 5 amps 2 amps 5 amps 10 amps Operating Temp. Range -40 C to 100 C -40 C to 100 C -40 C to 100 C -40 C to 100 C Signal Input Impedance Isolation Voltage Dimensional Drawings 1,000 ohms 1,000 ohms 4,000 VRMS 4,000 VR MS 4,000 VRMS 4,000 VRMS 1 mA maximum 1 mA maximum 1 mA maximum 1 mA maximum Package Type P/MP series P/MP series Power series Power series Turn-On Time 100 msec 100 msec 100 msec 100 msec Turn-Off Time 750 msec 750 msec 750 msec 750 msec Off-state Leakage Thermal Ratings Note: *MP series maximum allowed control signal 24 VDC. Dimensional Drawings Opto 22 43044 Business Park Drive Temecula, CA 92590 Phone: (909)695-3000 (800)321-OPTO Fax: (909)695-3095 Internet: www.opto22.com Inside Sales: (800)452-OPTO Product Support: (800)TEK-OPTO (909)695-3080 Fax: (909)695-3017 E-mail: support@opto22.com FaxBack: (800)474-OPTO DATA SHEET SOLID-STATE RELAYS page 9/13 Form 859-011127 Applications Tips Heat Sink Calculation Like all semiconductor devices, SSR current ratings must be based on maximum junction temperature. All Opto 22 SSRs operate conservatively at maximum junction temperatures of 110 C. Determining an adequate heat sink for a given SSR conducting a given current is very simple. Note: Thermally conductive grease must be used between the relay base and the heat sink. Sample Calculation Given: 120-Volt, 20-Amp Load 50 C Ambient Air Choose Model 120D25 SSR. Calculate dissipation as: 20 amps x 1.3 Watts per amp = 26 Watts Calculate temperature rise junction to SSR base as: 26 Watts x 1.2 C per Watt = 31.2 C Calculate allowable temperature of heat sink by subtracting 31.2 C from 110 C allowable junction temperature: 110 C-31.2 = 78.8 C The heat sink is in a 50C ambient, therefore, allowable temperature rise on heat sink is: 78.8 C-50 C = 28.8 C If heat sink is allowed to rise 28.8 C above ambient, then the thermal resistance of the heat sink is simply the 28.8 C rise divided by the 26 Watt. Any heat sink having a thermal resistance less than 1.1 C per Watt will be adequate. Duty Cycle Calculation When solid-state relays are operated in an on/off mode, it may be advantageous to calculate the RMS value of the current through the SSR for heat sinking or determining the proper current rating of the SSR for the given application. IRMS = RMS value of load or SSR T1 = Time current is on T2 = Time current is off ION = RMS value of load current during on period 2 IRMS = (ION) x T1 T1 + T2 Opto 22 43044 Business Park Drive Temecula, CA 92590 Phone: (909)695-3000 (800)321-OPTO Fax: (909)695-3095 Internet: www.opto22.com Inside Sales: (800)452-OPTO Product Support: (800)TEK-OPTO (909)695-3080 Fax: (909)695-3017 E-mail: support@opto22.com FaxBack: (800)474-OPTO SOLID-STATE RELAYS DATA SHEET page 10/13 Form 859-011127 Applications Tips (Continued) Transformer Loads Solenoid Valve and Contactor Loads Careful consideration should be given to the selection of the proper SSR for driving a given transformer. Transformers are driven from positive saturation of the iron core to negative saturation of the core each 1/2 cycle of the alternating voltage. Large inrush currents can occur during the first 1/2 cycle of line voltage when a zero voltage SSR happens to turn on during the positive 1/2 cycle of voltage when the core is already in positive saturation. Inrush currents greater than 10 times rated transformer current can easily occur. The following table provides a guide for selecting the proper SSR for a given transformer rating. All Opto 22 SSRs are designed to drive inductive loads such as solenoid valves and electromechanical contactors. The built-in snubber in each SSR assures proper operation into inductive loads. The following table is a guide in selecting an SSR to drive a solenoid or contactor. TRANSFORMER P or MP 120D2 100 VA Z120D10 500 VA 120D3 100 VA P or MP 120D4 250 VA 120D10 or 120A10 500 VA 120D25 or 120A25 1 KVA 120D45 2 KVA 240-Volt Transformers P or MP240D2 200 VA 7240D10 1 KVA 120D3 200 VA P or MP240D4 500 VA 240D10 or 240A10 1 KVA 240D25 or 240A25 2 KVA 240D45 4 KVA SSR CURRENT RATING SOLENOID CONTACTOR 2-Amp 1-Amp NEMA Size 4 4-Amp 3-Amp NEMA Size 7 240-Volt Coils SSR CURRENT RATING 120-Volt Transformers SSR MODEL 120-Volt Coils SOLENOID CONTACTOR 2-Amp 1-Amp NEMA Size 7 4-Amp 3-Amp NEMA Size 7 Control Current Calculation All Opto 22 DC controlled SSRs have a control circuit consisting of 1000 ohms in series with an LED. Since 3 volts is required to turn on any SSR, the maximum current required is (3 volt - 1 volt) divided by 1000 ohms which equals 2.0 mA. The 1 volt is subtracted from the 3 volt signal because 1 volt is dropped across the LED. For higher control voltages, an external resistor can be added in series with the control voltage to limit the control current. To limit the control current to 2 mA, calculate the external resistor RC = 500 (EC- 3) where EC = the control voltage. The DC control voltage range is 3-32 VDC. To calculate the control current for any voltage within the 3-32 VDC range, use the formula: IC = EC - 1 1000 where RC = zero. 480-Volt Transformers SSR MODEL TRANSFORMER 480D10-12 5-Amp Primary 480D15-12 5-Amp Primary With a 5V control signal, IC = 5-1 1000 = 4 mA. Opto 22 43044 Business Park Drive Temecula, CA 92590 Phone: (909)695-3000 (800)321-OPTO Fax: (909)695-3095 Internet: www.opto22.com Inside Sales: (800)452-OPTO Product Support: (800)TEK-OPTO (909)695-3080 Fax: (909)695-3017 E-mail: support@opto22.com FaxBack: (800)474-OPTO SOLID-STATE RELAYS DATA SHEET page 11/13 Form 859-011127 Applications Tips (Continued) Solid-State Relays In Series In applications requiring greater current rating at higher voltage, two Opto 22 SSRs may be operated in series for double the voltage rating. The built-in snubber in each SSR assures proper voltage sharing of the two SSRs in series. In the diagram below, two 240-volt, 45-amp SSRs are connected in series for operation on a 480-volt line. The control is shown with a parallel hook-up but it should be noted that a serial connection can also be implemented. Lamp Loads Heater Loads Since all Opto 22 SSRs are zero voltage switching, they are ideal for driving incandescent lamps because the initial inrush current into a cold filament is reduced. The life of the lamp is increased when switched by a zero voltage turn on SSR. The following table is a guide to selecting an Opto 22 SSR for switching a given incandescent lamp. Care should be taken in selecting a SSR for driving a heater load if the load is cycled on and off in a continuous manner as might occur in a temperature control application. Constant cycling can cause thermal fatigue in the thyristor chip at the point where the chip bonds to the lead frame. Opto 22 employs a thick copper lead frame for mounting the SCR chips in the power series SSRs to eliminate thermal fatigue failures. In addition, Opto 22 recommends operating any SSR at 75% rated current for cycling heater loads to ensure complete reliability. 120 Volt Lamps SSR CURRENT RATING LAMP RATING 2-Amp 100 Watt 4-Amp 400 Watt 10-Amp 1 Kilowatt 25-Amp 2 Kilowatt 45-Amp 3 Kilowatt 240 Volt Rating SSR CURRENT RATING LAMP RATING 2-Amp 200 Watt 4-Amp 800 Watt 10-Amp 2 Kilowatt 25-Amp 4 Kilowatt 45-Amp 6 Kilowatt The following table is a guide to selecting the proper SSR for a given heater load. Nominal SSR Current Rating Maximum Recommended Heater Current 2-Amp 11/2-Amp 4-Amp 21/2-Amp 10-Amp 71/2-Amp 25-Amp 18-Amp 45-Amp 35-Amp 10 480V 8-Amp 10 480V 8-Amp Opto 22 43044 Business Park Drive Temecula, CA 92590 Phone: (909)695-3000 (800)321-OPTO Fax: (909)695-3095 Internet: www.opto22.com Inside Sales: (800)452-OPTO Product Support: (800)TEK-OPTO (909)695-3080 Fax: (909)695-3017 E-mail: support@opto22.com FaxBack: (800)474-OPTO SOLID-STATE RELAYS DATA SHEET page 12/13 Form 859-011127 Applications Tips (Continued) Single-Phase Reversing Motor Control The circuit diagram illustrates a typical 1 O motor winding inductance and the phase shift capacitor can cause twice line voltage to appear across the open SSR. A 240-volt SSR should be used for a 120-Volt line. During the transition period when one SSR is turned on and the other SSR is going off, both SSRs may be on. In this case, the capacitor may discharge through the two SSRs, causing large currents to flow, which may destroy the SSRs. The addition of RL as shown will protect the SSRs from the short circuit capacitor discharge current. 1.4 EAC CALCULATE RL as: RL = 10 x SSR full load rating The resistors are unnecessary if the control circuit is designed to ensure one SSR is off before the other SSR is on. EXAMPLE: 10 amp SSR 120 V AC Line RL = 1.4 x 120 = 1.7 ohm 10 x 10 Three-Phase Reversing Motor Control Three-Phase Motor Control 240-Volt 3q Motors Three-phase motors may be controlled by solid-state relays as shown. A third SSR as shown is optional, but not necessary. The control windings may be connected in series or parallel. Care should be taken to ensure that surge current drawn by the motor does not exceed surge current rating of the SSR. SSR MODEL MOTOR Z240D25 1/3 HP Z240D10 3/4 HP 240D10 3/4 HP 240A10 3/4 HP 240D25 2 HP 240A25 2 HP 240D45 3 HP 480-Volt 3q Motors SSR MODEL MOTOR 480D10-12 1-1/2 HP 480D15-12 1-1/2 HP Three-phase reversing motor control can be implemented with four SSRs as shown in the connection diagram. The SSRs work in pairs with SSR1 and SSR3 operated for rotation in one direction and SSR2 and SSR4 operated for rotation in the reverse direction. The resistor R1 as shown in the connection diagram protects against line-to-line shorts if SSR1 and SSR4 or SSR3 and SSR2 are on at the same time during the reversing transition period. Use the following table as a guide to the proper selection of an SSR for this application. Opto 22 Relay Motor Full Load Rating Resistor for 120V line Resistor for 240V line 3-Amp 1.25-Amp 4 ohm 50 W 8 ohm 50 W 10-Amp 5-Amp 1 ohm 100 W 2 ohm 100 W 25-Amp 8-Amp .5 ohm 100 W 1 ohm 100 W 45-Amp 16-Amp .25 ohm 150 W .5 ohm 150 W 15-Amp 5-Amp 1 ohm 100 W 2 ohm 100 W Opto 22 43044 Business Park Drive Temecula, CA 92590 Phone: (909)695-3000 (800)321-OPTO Fax: (909)695-3095 Internet: www.opto22.com Inside Sales: (800)452-OPTO Product Support: (800)TEK-OPTO (909)695-3080 Fax: (909)695-3017 E-mail: support@opto22.com FaxBack: (800)474-OPTO (c) 19962001 Opto 22. All rights reserved. All trademarks, trade names, logos, and service marks referenced herein belong to their respective companies. LATEST PRODUCTS PRODUCT SUPPORT COMPANY INFORMATION Products Opto 22 produces a broad array of reliable, flexible hardware and software for industrial automation and remote monitoring. Opto 22's diverse and complete product range allows you to buy in at any level, from solid-state relays to fully integrated control systems. SNAP Ultimate I/OTM The most intelligent and powerful I/O system available, SNAP Ultimate I/O effectively combines I/O, control, networking, and enterprise connectivity into a single cohesive system. SNAP Ultimate I/O has the ability to communicate directly with enterprise systems, eliminating the need for complex middleware and the significant investments associated with it. Software and utilities for use with SNAP Ultimate I/O include ioControlTM flowchart-based control programming software and ioDisplayTM, a Windows-based HMI development package. SNAP Ethernet I/OTM Using SNAP Ethernet I/O systems, you can connect a wide variety of electronic and mechanical devices such as lights, temperature and pressure sensors, motors, and serial devices to computers via a standard Ethernet network, wireless LAN, or even the Internet. SNAP-ITTM Systems A packaged solution that brings industry-proven SNAP Ethernet technology to your enterprise faster and easier than ever before, SNAP-IT is a Web-enabled hardware appliance that connects environmental, device, and other sensors directly to your enterprise applications. The connected devices can then be controlled and real-time operational data can be collected, monitored, and delivered via a standard Ethernet, wireless LAN, or dial-up network. Opto 22 FactoryFloorTM Software FactoryFloor is an integrated suite of industrial control software applications designed to help you develop control automation solutions, build easy-to-use operator interfaces, and expand your manufacturing systems' connectivity. Other Software and Hardware Software developer kits (SDKs), diagnostic utilities, support for the Linux operating system, and a full line of SNAP industrial controllers are also available from Opto 22. Quality In delivering hardware and software solutions for worldwide device management and control, Opto 22 retains the highest commitment to quality. We do no statistical testing; each product is made in the U.S.A. and is tested twice before leaving our 160,000 squarefoot manufacturing facility in Temecula, California. That's why we can guarantee solid-state relays and all optically-isolated I/O modules for life. Product Support Opto 22's Product Support Group offers comprehensive technical support for Opto 22 products. The staff of support engineers represents years of training and experience, and can assist with a variety of project implementation questions. Product support is available in English and Spanish from Monday through Friday, 8 a.m. to 5 p.m. Pacific Standard Time. Opto 22 Web Sites www.opto22.com www.ManageTheRealWorld.com www.internetio.com (live Internet I/O demo) www.ultimateio.com (SNAP Ultimate I/O information) Other Resources * OptoInfo CDs * Integration support * Ongoing, up-to-date training * FaxBack service: (800) 474-OPTO About Opto 22 Founded in 1974, Opto 22 is a leading manufacturer of high-quality hardware and software solutions for connecting real-world devices with computer networks. Customer applications include enterprise management, remote monitoring and control, industrial automation, and data acquisition. Opto 22 was one of the first companies to recognize and implement solutions involving networks, computers, and real-world equipment and devices. More than 65 million devices worldwide are reliably connected to Opto 22 systems. Opto 22 * 43044 Business Park Drive * Temecula, CA 92590 * Phone: (909) 695-3000 * (800) 321-OPTO * Fax: (909) 695-3095 * Internet: www.opto22.com Inside Sales: (800) 452-OPTO * Product Support: (800) TEK-OPTO * (909) 695-3080 * Fax: (909) 695-3017 * E-mail: sales@opto22.com * FaxBack: (800) 474-OPTO. (c) 2001 Opto 22. All rights reserved. All trademarks, trade names, logos, and service marks referenced herein belong to their respective companies. Form #1335-011119