Power Solid-state Relay G3NH Switching 75 to 150 A at 240 to 440 VAC Easy-to-mount monoblock construction incorporat- ing heat sink. Replaceable power cartridge. Incorporating operation indicator and varistor. A series of high-voltage (440 V) models available. Ordering Information Isolation Zero cross Indicator Rated output load Rated input voltage Model function (Applicable output load) Photocoupler Yes Yes 75 A at 100 to 240 VAC 5 to 24 VDC G3NH-2075B (75 to 264 VAC) 1 100 00 to 24 to 240 0 V VA AC C 75 A at 180 to 440 VAC G3NH-4075B (150 to 484 VAC) 150 A at 100 to 240 VAC G3NH-2150B (75 to 264 VAC) 150 A at 180 to 440 VAC G3NH-4150B (150 to 484 VAC) Thyristor Modules are built-in. When using the G3NH to control a motor, refer to List of Recommended Loads on pages 3 to 5. Replacement Parts Name Applicable output load Model Applicable Model Thyristor Module 75 A at 75 to 264 VAC G32A-N2075 G3NH-2075B 75 A at 150 to 484 VAC G32A-N4075 G3NH-4075B 150 A at 75 to 264 VAC G32A-N2150 G3NH-2150B 150 A at 150 to 484 VAC G32A-N4150 G3NH-4150B Specifications Ratings Input Rated voltage Operating voltage Impedance Voltage level Must operate voltage Must release voltage 5 to 24 VDC 4 to 30 VDC 5 mA max.* 4 VDC max. 1 VDC min. 100 to 240 VAC 75 to 264 VAC 41 kΩ±20% 75 VAC max. 20 VAC min. *G3NH converts the current input into a constant current. 166 G3NH G3NH Output Model Applicable load Rated load voltage Load voltage range Load current Inrush current G3NH-2075B 100 to 240 VAC 75 to 264 VAC 1 to 75 A 800 A (60 Hz, 1 cycle) G3NH-4075B 180 to 240 VAC 150 to 484 VAC G3NH-2150B 100 to 240 VAC 75 to 264 VAC 1 to 150 A 1,800 A (60 Hz, 1 cycle) G3NH-4150B 180 to 440 VAC 150 to 484 VAC Characteristics Item G3NH-2075B G3NH-4075B G3NH-2150B G3NH-4150B Operate time 1/2 of load power source cycle + 1 ms max. (DC input) 3/2 of load power source cycle + 1 ms max. (AC input) Release time 1/2 of load power source cycle + 1 ms max. (DC input) 3/2 of load power source cycle + 1 ms max. (AC input) Output ON voltage drop 1.6 V (RMS) max. Leakage current 30 mA max. 60 mA max. 30 mA max. 60 mA max. (at 200 VAC) (at 400 VAC) (at 200 VAC) (at 400 VAC) Insulation resistance 100 MΩ min. (at 500 VDC) Dielectric strength 2,500 VAC, 50/60 Hz for 1 min Vibration resistance Malfunction: 10 to 55 Hz, 0.75-mm double amplitude 2 Shock resistance Malfunction: 500 m/s Ambient temperature Operating: –30°C to 80°C (with no icing or condensation) Storage: –30°C to 100°C (with no icing or condensation) Ambient humidity Operating: 45% to 85% Weight Approx. 1.8 kg Approx. 3.0 kg Engineering Data Load Current vs. Ambient Inrush Current Resistivity Temperature Characteristics G3NH-�075B, G3NH-�150B G3NH-�075B, G3NH-�150B Non-repetitive (Keep the inrush current to half the rated value if it occurs repeatedly.) G3NH-�150B Vertical mounting G3NH-�150B Horizontal mounting Vertical G3NH-�075B mounting G3NH-�075B Horizontal mounting Ambient temperature (°C) Energizing time (ms) 167 Load current (A) Inrush current (A. Peak) G3NH G3NH Input Current vs. Input Impedance G3NH (4 to 30 VDC) G3NH (75 to 264 VAC) Input current Input current Impedance Impedance Input voltage (V) Input voltage (V) Operation Replacement Parts G32A-N Thyristor Module The thyristor module may be damaged if the load is short-circuited, Name Applicable Applicable Model in such a case, replace the damaged thyristor module with a new load Relay one. Thyristor 75 A at 75 to G3NH-2075B G32A-N2075 module 264 VAC 75 A at 150 to G3NH-4075B G32A-N4075 484 VAC 150 A at 75 to G3NH-2150B G32A-N2150 264 VAC 150 A at 150 G3NH-4150B G32A-N4150 to 484 VAC Replacement Be sure to turn off the power before replacement. 1. First, remove the four screws (shown below as “A”) and the 2. Remove the four screws (shown in the following as “B”) and transparent protective cover from the relay housing and then the nameplate from the relay housing. disconnect the wiring. B B A A B B A A Name plate 168 Input current (mA) Input impedance (k ) Ω Input current (mA) Input impedance (k ) Ω G3NH G3NH 3. Remove the three screws (shown in the following as “C”) from 5. Remove the two screws (shown in the following as “D”) and inside the housing and pull the Base assy up to detach. (The take out the built-in thyristor module. Base assy cannot be removed thoroughly because of the leads connected to the base.) D C D PWB securing groove Heat sink Base Assembly of the thyristor module must be performed in the exact reverse order of the previous disassembly steps 1 to 5. 4. When the Base assy is detached, you will see the leads 6. Before mounting the new thyristor module for replacement, connected to the built-in thyristor module. Pull the connector wipe off the silicon grease adhering to the heat sink, keep to disconnect the leads. At this point, if any defect exists in clean the jointing surfaces of the heat sink and thyristor any of the electronic components on the PWB, the SSR may module, and apply the new grease (supplied as an fail again even after the replacement of the built-in thyristor accessory) to the jointing surfaces. Secure the thyristor module. In such a case, consult OMRON about appropriate module to the heat sink with the two screws “D” and tighten remedial action. each screw to a torque of 2.45 to 2.94 N � m. Protection cover 7. Connect the thyristor module to the PWB with the socket. securing groove (The socket may be inserted in either direction.) Assemble Connector Protection cover the Base assy with the heat sink by aligning the PWB with the PWB securing groove and the protective cover with the protective cover securing groove, respectively, while exercising caution not to get any of the leads caught between the Base assy and the heat sink. 8. Secure the Base assy with the three screws “C”. Because a large current flows into these screw parts, make sure that any of the screws is not clogged with foreign matter and tighten each screw to a torque of 4.41 to 4.90 N � m. 9. Check the assembled parts again for any lead caught between the Base assy and heat sink and for proper fitting of the PWB and protective cover into their respective securing grooves. Then, replace the nameplate and secure it with the four screws “B”. 10.Complete the wiring and secure the protective cover with the four screws “A”. Connecting to thyristor module 11.Apply power to the relay and check the relay for proper PWB operation. 169 G3NH G3NH Dimensions Note: All units are in millimeters unless otherwise indicated. G3NH-2075B/4075B Four, 6.5-dia. Mounting Holes Four, 6.5 dia. or M6 13 8 150 135±0.5 Two-M6 Two-M3 120 90±0.5 120 G3NH-2150B/4150B Four, 6.5-dia. Mounting Holes Four, 6.5 dia. or M6 22 186 8 171±0.5 Two-M3 Two-M8 156 126±0.5 156 Precautions Refer to pages 11 to 19 for general precautions. Load Connection Mounting Securely tighten the LOAD terminal screws with the torque speci- When you locate the G3NH near other equipment, take the heat re- fied in the following list after you connect the load to the LOAD termi- sistivity of the equipment into consideration. The temperature of the nals. If the tightening torque is not enough, the terminals will gener- G3NH’s heat sink will rise by approximately 50°C with a rated cur- ate heat. rent flow through the G3NH. The G3NH will rise the ambient temperature. When mounting the Model Tightning torque G3NH inside a panel, install a fan for proper ventilation. G3NH-�075B 4.41 to 4.90 N � m When closely mounting the G3NH SSRs side by side, reduce the load current 30% lower than the specified value shown in the load G3NH-�150B 8.82 to 9.80 N � m current vs. ambient temperature graph. Take proper measures so that the heat sink will be protected from dust. ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527. Cat. No. K070-E1-2 170