SOLID STATE RELAYS HIGH RELIABILITY From MADE IN 27 $ USA SSR240DC25 shown with FHS-1 ac Controlled SSR used with Temperature Controller with dc Voltage SSR Driver Output Temperature controller dc Input SSR 4 Load Side vac vac 2 3 0 or 5 Vdc., Typically Fast Blow Fuse ac Controlled SSR used with Temperature Controller with Mechanical Relay Output Temperature controller Control Side ac Input SSR 4 Load Side "Switching" takes place at the zero voltage crossover point of the alternating current cycle. Because of this, no appreciable electrical noise is generated, making SSR's ideal for environments where there are apparatuses susceptible to RFI. Heater 1 vac vac 2 3 Fast Blow Fuse Vac Driving SSR ac Controlled SSR used with Temperature Controller with Triac Output Temperature controller Control Side Load Resistor 4 ac Input SSR 1 3 2 Load Side Heater vac vac Fast Blow Fuse Vac Driving SSR Control resistance heaters up to 10 kW using solid state relays in conjunction with lower rated temperature controllers. Solid state relays are SPST, normally open, switching devices with no moving parts, capable of millions of cycles of operation. By applying a control signal, an SSR switches "ON" the ac load current, just as the moving contacts do on a mechanical contactor. Three-phase loads can be controlled using 2 or 3 SSR's. Use 3 SSR's for "Y" or "star" 3-phase loads using a neutral line. Two SSR's will control "delta" loads with no neutral line. Three solid state relays are also used when there is no neutral load to provide redundancy and extra assurance of control. Heater 1 C COMMON SPECIFICATIONS Capacitance: 8 pF, input to output (max) Line Frequency Range: 47 to 63 Hz Turn-On Time: 20 ms, ac; 05 cycle, dc Turn-Off Time: 30 ms, ac; 05 cycle, dc Operating Temperature: -4 to 176F (-20 to 80C) Storage Temperature: -40 to 176F (-40 to 80C) Isolation: 4000 V rms, input to output; 2500 V rms input/output to ground OUTPUT SPECIFICATIONS MAX ON STATE CURRENT, A MIN ON STATE CURRENT, MA MAX 1-CYCLE SURGE, A MAX 1 SEC SURGE, A 12T (60 HZ), A2SEC C-54 ACCESSORIES U Current Ratings to 90 Amps U Multi-Million Cycle Life U Compatible with Temperature Controllers U Solid-State, SCR Design U Zero Voltage Switching U UL and CSA Certified U Control ac Lines to 440 Vac U ac and dc Control Signal Models U 200% Testing at Rated Current Control Side 10 25 100 30 200 250 75 260 45 100 450 135 840 50 75 90 500 145 1040 700 200 2345 1000 280 3375 SOLID STATE RELAYS 2.000 These SSR's are of the twin SCR type, inherently more reliable and capable of higher overloads before failure than triacs. Heat is developed in a solid state relay due to the nominal voltage drop across the switching device. To dissipate the heat, an SSR must be mounted on a finned heat sink or aluminum plate. An SSR should be located where the ambient temperature is relatively low, since the current switching rating is lowered as the temperature increases. Another SSR characteristic is a small leakage current across the output when the relay is open. Because of this, a voltage will always exist on the load side of the device. 2.000" 0.200" 0.250" 0.062 4.750" 8-32 TH'D 2 Places 4.416" 1.875" 0.125" R C DIMENSIONS IN INCHES Dimensions: FHS-6 Heat Sink (0.7C/W Thermal Rating) SSR MOUNTING HOLES (2) 8-32 THDS. In comparing SSR's with mechanical contactors, the SSR has a cycle life many times that of a comparably priced contactor. However, SSR's are more prone to failure due to overload and improper initial wiring. Solid state relays can fail, contact closed, on overload circuits. 5.50 4.50 2.62 CL Finned heat sinks are anodized fabrications that come complete with tapped mounting holes and screws. See thermal rating curves and ordering instructions for proper selection. 1.44 0.50 4.56 CENTERS #6 (SCREWS) CL 4.75 0.218 (TYP) END VIEW SSR baseplate to heat sink thermal resistance is affected by use of a thermally conducting compound. OMEGATHERM(R) OT-201 placed between the heat sink and SSR baseplate will significantly improve thermal conductivity. It is also suggested that 10-inch-pounds of torque be used on the SSR mounting screws. A B 0.167" 1.87 0.20 (TYP.) 1.81 TOP VIEW FHS Heat Sink Dimensions MODEL NO. FHS-1 FHS-2 A 3.00" 5.50" B 2.50" 5.00" C 0.56" 1.81" THERMAL RATING 2 C/W 1.2 C/W Electrical Specifications INPUT-CONTROL SIGNAL INPUT & OUTPUT TYPE CONTROL SIGNAL VOLTAGE CONTROL SIGNAL TURN-ON CONTROL SIGNAL TURN-OFF SIGNAL INPUT IMPEDANCE PEAK REPETITIVE VOLTAGE MIN.* SSR240AC10 SSR240AC25 SSR240AC45 SSR240AC75 SSR240AC90 ac Control Signal 90 to 280 Vac 90 Vac 10 Vac 40 k 500 V SSR240DC10 SSR240DC25 SSR240DC45 SSR240DC75 SSR240DC90 dc Control Signal 3 to 32 Vdc 3 Vdc 1 Vdc 1 k 500 V SSR440AC50 SSR440AC75 SSR440AC90 ac Control Signal 90 to 280 Vac 90 Vac 10 Vac 40 k 1200 V SSR440DC50 SSR440DC75 SSR440DC90 dc Control Signal 3 to 32 Vdc 3 Vdc 1 Vdc 1 k 1200 V MODEL NO. C-55 Derate current 20% for horizontal fin mount Derate current 50% for 220 Vac Derate current 20% for horizontal fin mount Derate current 50% for 220 Vac 18 30 60 15 25 50 3 15 FHS-1 10 5 40 50 60 70 20 80 30 40 50 60 70 10 FH 40 95 S- 6 FF H 100 FHS 30 -1 105 110 50 A MODELS 20 115 FREE AIR 10 120 80 60 40 20 0 0 10 20 30 40 50 60 40 50 60 70 75 70 80 70 102 105 FH S- 60 6 FH S-2 50 110 40 FHS -1 115 30 75 A MODELS 20 FREE AIR 120 10 0 0 0 30 AMBIENT TEMPERATURE 100 POWER DISSIPATION (WATTS) 20 90 BASEPLATE TEMPERATURE (C) 30 20 80 DERATE CURRENT 20% FOR HORIZONTAL FIN MOUNT 50 ON-STATE CURRENT (AMPS) 40 10 FREE AIR DERATE CURRENT 20% FOR HORIZONTAL FIN MOUNT 50 20 AMBIENT TEMPERATURE AMBIENT TEMPERATURE 60 30 BASEPLATE TEMPERATURE (C) 30 FHS-2 FREE AIR FREE AIR 20 45 A MODEL 40 RMS AMPERES FHS-2 FHS-1 6 25 A MODELS FHS-2 ON-STATE CURRENT (AMPS) RMS AMPERES 9 20 RMS AMPERES 10 A MODELS 12 POWER DISSIPATION (WATTS) Derate current 20% for horizontal fin mount Derate current 50% for 220 Vac 0 80 10 20 30 50 40 60 80 70 AMBIENT TEMPERATURE (C) AMBIENT TEMPERATURE (C) DERATE CURRENT 20% FOR HORIZONTAL FIN MOUNT 1.75, 44.5* \ 8-32 Thread 90 100 DIMENSIONS IN INCHES 80 60 40 20 ON-STATE CURRENT (AMPS) POWER DISSIPATION (WATTS) .010, .25 Clearance For Circuit Board Mounting .87, 22.1 2.25, 57.2 Tolerances XX - .020 XXX - .010 1.70, 43.2 1.95, 49.5 90 A MODELS 100 80 105 FH 70 S-6 60 FHS -2 110 -1 115 50 40 FHS 30 20 FREE AIR 120 10 .172, 4.4 Two Places 1.00, 25.4 0 6-32 Thread 0 0 10 20 30 40 50 60 70 80 AMBIENT TEMPERATURE (C) C Output-ac Load MODEL NO. SSR240AC10 SSR240AC25 SSR240AC45 SSR240AC75 SSR240AC90 SSR240DC10 SSR240DC25 SSR240DC45 SSR240DC75 SSR240DC90 SSR440AC50 SSR440AC75 SSR440AC90 SSR440DC50 SSR440DC75 SSR440DC90 ACCESSORIES 1.870, 47.5 * millimeters BASEPLATE TEMPERATURE (C) 1.10, 27.9 NOMINAL AC LINE VOLTAGE 24 to 280 Vac 24 to 280 Vac 36 to 480 Vac 36 to 480 Vac NOMINAL MAX. LOAD CONTACT CURRENT VOLTAGE DROP 10 A 25 A 45 A 1.6 V 75 A 90 A 10 A 25 A 45 A 1.6 V 75 A 90 A 50 A 75 A 1.6 V 90 A 50 A 75 A 1.6 V 90 A Transients of 1 min. max duration above table value should be suppressed. *For base plate temperature and max. power dissipation, see figures above. C-56 MAX. OFF-STATE LEAKAGE (25C MAX. AMBIENT) 120 Vac 240 Vac 440 Vac 7.5 mA 15 mA 7.5 mA 15 mA 7.5 mA 15 mA N/A 7.5 mA 15 mA 7.5 mA 15 mA 7.5 mA 15 mA 7.5 mA 15 mA 7.5 mA 15 mA N/A 7.5 mA 15 mA 7.5 mA 15 mA 4 mA 8 mA 15 mA 4 mA 8 mA 15 mA 4 mA 8 mA 15 mA 4 mA 8 mA 15 mA 4 mA 8 mA 15 mA 4 mA 8 mA 15 mA DISSIPATION WATT/AMPS 1.6 1.3 09 * * 1.6 1.3 0.9 * * * * * * * * SOLID STATE RELAYS 750 Shown smaller than actual size 450 300 150 900 0 1 (0.0167) 10 (0.167) 100 (1.67) NUMBER OF CYCLES (SECONDS) 500 400 SURGE CURRENT (AMPS PEAK) 750 1000 (16.7) SURGE CURRENT (AMPS PEAK) SURGE CURRENT (AMPS PEAK) 600 600 450 300 150 300 0 1 (0.0167) 200 10 (0.167) 100 (1.67) NUMBER OF CYCLES (SECONDS) 1000 (16.7) 100 Fuses 0 1 (0.0167) 10 (0.167) 100 (1.67) 1000 (16.7) NUMBER OF CYCLES (SECONDS) MOST POPULAR MODELS HIGHLIGHTED To Order (Specify Model Number) MODEL NO. SSR240AC10 SSR240AC25 SSR240AC45 SSR240AC75 SSR240AC90 SSR240DC10 SSR240DC25 SSR240DC45 SSR240DC75 SSR240DC90 SSR440AC50 SSR440AC75 SSR440AC90 SSR440DC50 SSR440DC75 SSR440DC90 FHS-1 FHS-2 FHS-6 PRICE $31 31 35 96 114 29 29 33 91 118 108 118 137 91 109 118 13 17 21 DESCRIPTION ac Control Signal (280 Vac line) dc Control Signal (280 Vac line) ac Control Signal (440 Vac line) dc Control Signal (440 Vac line) Finned Heat Sink NOMINAL RATING 10 A 25 A 45 A 75 A 90 A 10 A 25 A 45 A 75 A 90 A 50 A 75 A 90 A 45 A 75 A 90 A 2C/W 1.2C/W 0.7C/W To Order (Specify Model Number) PRICE $6 9 6 9 MODEL NO. KAX-10 KAX-25 KAX-30 KAX-45 KAX-70 KAX-90 KBH-50 KBH-70 KBH-90B PRICE $13 13 13 45 49 59 35 49 46 CAPACITY 10 Aac 25 Aac 30 Aac 45 Aac 70 Aac 90 Aac 50 Aac 70 Aac 90 Aac Fuse Blocks To Order (Specify Model Number) MODEL NO. FB-1 FB-2 FB-3 BS-101 PRICE $11 20 32 46 COMPATIBLE FUSE KAX-10, KAX-25 KAX-10, KAX-25 KAX-10, KAX-25 KAX-45, KAX-75, KAX-90, KBH (all models) Shunt Resistor Guide for Controllers with Triac or SSR Outputs Shunt Resistors MODEL NO. SSRR20-12 SSRR20-50 SSRR15-12 SSRR15-50 To Order (Specify Model Number) VALUE 2000 , 12 watts 2000 , 150 watts 1500 , 12 watts 1500 , 50 watts CONTROLLER MODEL NO. CN2000, CN2010, CN2040 CN9131A, 9231, or 9231A C-57 MODEL NO. RESISTOR 120 Vac SSRR20-12 MODEL NO. RESISTOR 240 Vac SSRR20-50 SSRR15-12 SSRR15-50 Over 100,000 Products Available Online at omega.com TEMPERATURE M U Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies M U Calibrators & Ice Point References M U Recorders, Controllers & Process Monitors M U Infrared Pyrometers PRESSURE, STRAIN AND FORCE M U Transducers & Strain Gages M U Displacement Transducers M U Instrumentation & Accessories FLOW/LEVEL M U Rotameters, Gas Mass Flowmeters & Flow Computers M U Air Velocity Indicators M U Turbine/Paddlewheel Systems pH/CONDUCTIVITY M U pH Electrodes, Testers & Accessories M U Benchtop/Laboratory Meters M U Controllers, Calibrators, Simulators & Pumps M U Industrial pH & Conductivity Equipment DATA ACQUISITION M U Data Acquisition & Engineering Software M U Communications-Based Acquisition Systems M U Plug-in Cards for Apple, IBM & Compatibles M U Recorders, Printers & Plotters HEATERS M U Heating Cable, Cartridge & Strip Heaters M U Immersion & Band Heaters M U Flexible Heaters ENVIRONMENTAL MONITORING AND CONTROL M U Metering & Control Instrumentation M U Pumps & Tubing M U Air, Soil & Water Monitors M U Industrial Water & Wastewater Treatment www.omega.com ONE OMEGA DRIVE, STAMFORD, CT 06907 USA TEL: 1-888-TC-OMEGA (1-888-826-6342)