General Purpose Relay ■ ■ ■ ■ ■ G7J Ideal for 3-phase motor control applications and resistive and inductive loads No contact chattering for momentary voltage drops up to 50% of rated voltage Withstands more than 4 kV between contacts that are of different polarity and between the coil and contacts Flame-resistant materials (UL94V-0) used for all insulation Push-to-test button on all models lets user check contact operation Ordering Information To Order: Select the part number and add the desired coil voltage rating (e.g., G7J-3A1B-B-AC100/120). Type PCB mounting W-bracket (see note) Contact form 4PST-NO 3PST-NO/SPST-NC DPST-NO/DPST-NC 4PST-NO 3PST-NO/SPST-NC DPST-NO/DPST-NC Part number Quick-connect terminal — — — G7J-4A-T G7J-3A1B-T G7J-2A2B-T Screw terminal — — — G7J-4A-B G7J-3A1B-B G7J-2A2B-B PCB terminal G7J-4A-P G7J-3A1B-P G7J-2A2B-P Note: The G7J-B relays require a W-bracket for mounting. Order the bracket separately below. To order a relay and bracket packed together, add "-W1" to the part number before the coil voltage suffix. For example, G7J-2A2B-B-W1-AC100/120. ■ ACCESSORIES Types W-brackets Applicable relays G7J-4A-B, G7J-3A1B-B, G7J-2A2B-B ■ TYPICAL APPLICATIONS Compressors for air conditioners and heater switching controllers. Switching controllers for power tools or motors. Lamp controls, motor drivers, and power supply switching controllers in copy machines, facsimile machines, and other office equipment. Power controllers for packers or food processing equipment. Power controllers for inverters. Part number R99-04-FOR-G5F G7J G7J Specifications ■ CONTACT DATA Load Rated load Rated carry current Max. switching voltage Max. switching current Max. switching capacity Min. permissible load Resistive load (p.f. = 1) NO NC 25 A, 220 VAC (24 A, 230 VAC), 25 A, 30 VDC 8 A, 220 VAC (7.5 A, 230 VAC), 8 A, 30 VDC 25 A 8A 250 VAC,125 VDC 25 A 8A 5,500 VA, 750 W DC 1,760 VA, 240 W DC 100 mA, 24 VDC at 120 operations/minute, 23°C (73°F) ambient temperature) ■ COIL DATA AC Coil voltage Rated voltage (VAC) Rated current (mA) Coil resistance (Ω) 24 50 100/120 200/240 24 50 100 to 120 200 to 240 75 36 18 to 21.60 9 to 10.80 — — — — Coil voltage Rated voltage (VDC) Rated current (mA) Coil resistance (Ω) 12 24 48 100 110 12 24 48 100 110 167 83 42 20 18 72 288 1150 5000 6050 Must operate Must release % of rated voltage 75% max. 15% min. Max. voltage Power consumption 110% Approx.1.8 to 2.6 VA 75 volts 150 volts 132 volts 264 volts 18 volts 36 volts DC Must operate Must release % of rated voltage 75% max. 10% min. Max. voltage Power consumption 110% Approx. 2.0 W Note: 1. The rated current and coil resistance are measured at a coil temperature of 23°C (73°F) with tolerances of +15%/-20% for AC rated current and ±15% for DC coil resistance. 2. Performance characteristic data are measured at a coil temperature of 23°C (73°F). 2 G7J G7J ■ COIL INTERNAL CIRCUIT AC operating coil DC operating coil A2 A1 A2 The G7J incorporates a bridge rectifier circuit in the AC coil versions that prevents contact chatter or dropout during a voltage drop. This circuit allows the relays to withstand, with no vibration or shock, voltage drops to the coil of up to 50% of the rated coil voltage for one second maximum. A1 As a rule, either a DC battery or a DC power supply with a maximum of 5% ripple must be used for the operating voltage for DC relays. Before using a rectified AC supply, confirm that the ripple is not greater than 5%. Ripple greater than this can lead to variations in the operating and reset voltages. As excessive ripple can generate pulses, the insertion of a smoothing capacitor is recommended as shown below. Smoothing capacitor Relay Ripple E min. E max. E mean DC fraction % of ripple = E max. – E min. x 100 E mean E max.: Maximum ripple E min.: Minimum ripple E mean: Mean DC voltage value When driving the coil with a transistor, check the leakage current and connect a bleeder resistor if necessary. ■ CHARACTERISTICS Contact resistance Operating time Release time Operating frequency Mechanical Electrical Insulation resistance Dielectric strength Impulse withstand voltage Vibration Mechanical durability Malfunction durability Shock Mechanical durability Malfunction durability Service life Mechanical Electrical Operating Operating PCB terminal Screw terminal Ambient temperature Humidity Weight 50 mΩ max. 50 ms max. 50 ms max. 1,800 operations/hour max. 1,800 operations/hour max. 1,000 MΩ minimum at 500 VDC 4,000 VAC, 50/60 Hz for 1 minute between coil and contacts 4,000 VAC, 50/60 Hz for 1 minute between contacts of different polarity 2,000 VAC, 50/60 Hz for 1 minute between contacts of the same polarity 10,000 V between coil and contact with 1.2 x 50 µs impulse wave 10 to 55 Hz, 1.50 mm (0.06 in) double amplitude NO: 10 to 55 Hz, 1.50 mm (0.06 in) double amplitude NC: 10 to 26 Hz, 1.50 mm (0.06 in) double amplitude 1000 m/s2 (Approx. 100 G) NO: 100 m/s2 (Approx. 10 G) NC: 20 m/s2 (Approx. 2 G) 1 million operations minimum at 1,800 operations/hour 100,000 operations minimum at 1,800 operations/hour at rated load -25° to 60°C (-13° to 140°F) with no icing 35% to 85% RH Approx. 140 g (4.90 oz.) Approx. 165 g (5.80 oz.) Note: Data shown are of initial value. 3 G7J G7J Maximum switching capacity Electrical service life Switching current (A) Life expectancy (x 103 operations) ■ CHARACTERISTIC DATA Switching voltage (V) Switching current (A) Dimensions Unit: mm (inch) ■ RELAYS PCB Terminals with PCB Mounting G7J-4A-P, G7J-3A1B-P, G7J-2A2B-P 33.5 (1.319) max. Mounting holes (Bottom view) 30 (1.181) 16 (0.630) 21±0.1 (0.827±0.004) 1.4 (0.055) 0.8 (0.031) 6.4 (0.252) 1.4 (0.055) 6 (0.236) 11±0.1 (0.433±0.004) Twenty 1.8 (0.071) dia. 1.5 (0.059) 51 (2.008) max. 40.4±0.15 (1.591±0.006) 11.6±0.1 (0.457±0.004) 30.8±0.15 (1.213±0.006) 21.2±0.1 (0.827±0.004) 51.5 (2.028) max. 2 (0.079) 4 (0.157) 4 G7J G7J Screw Terminals (requires W-bracket for mounting) G7J-4A-B, G7J-3A1B-B, G7J-2A2B-B Mounting holes (Bottom view) Ten, M3.5 Two, 4.5 (0.177) dia. or M4 34.5 (1.358) max. 7.6 (0.299) 35±0.1 (1.378±0.004) 4.3 (0.169) 55.2 (2.173) 64 (2.520) max. 43.2 (1.701) 51.5 (2.028) max. 2 (0.079) ■ ACCESSORIES W-Bracket for G7J-B Relays with Screw Terminals R99-04-FOR-G5F 35 (1.378) Mounting holes Two, M4 or 4.5 (0.177) dia. Two, M4 24 (0.945) 28 (1.102) 30 (1.181) 9 (0.354) 35±0.1 (1.378±0.004) 29 (1.142) 7 (0.276) 44 (1.732) 4.4 (0.173) ■ TERMINAL ARRANGEMENT – INTERNAL CONNECTIONS G7J-4A-P(B) G7J-3A1B-P(B) G7J-2A2B-P(B) 5 G7J G7J ■ APPROVALS UL 508 and 1950 (Recognized, File No. E41643)/CSA 22.2 No. 14 (Certified, File No. LR 35535) Contact arrangement Normally Open Load type Resistive General use Tungsten Motor load Normally Closed TV Resistive General use Contact ratings 25 A, 277 VAC, 30,000 cycles 25 A, 30 VDC, 30,000 25 A, 120 VAC, 30,000 cycles 25 A, 277 VAC, 30,000 cycles 25 A, 240 VAC, 100,000 cycles 1.5 kW, 120 VAC 1.5 HP, 120 VAC 3 HP, 240/265/277 VAC 3-phase, 3 hp, 240/265/277 VAC, 30,000 cycles 3-phase, 5 hp, 240/ 265/277 VAC, 30,000 cycles 20 FLA/120 LRA, 120 VAC, 30,000 cycles 17 FLA/102 LRA, 277 VAC, 30,000 cycles TV-10, 120 VAC 8 A, 277 VAC, 30,000 cycles 8 A, 30 VDC, 30,000 cycles 8 A, 120 VAC, 30,000 cycles 8 A, 277 VAC, 30,000 cycles Note: 1. The rated values approved by each of the safety standards may be different from the performance characteristics individually defined in this catalog. 2. In the interest of product improvement, specifications are subject to change without notice. Precautions ■ HANDLING ■ CLEANING PCB TERMINALS • To preserve performance, do not drop or otherwise subject the G7J relay to shock. PCB terminals have semi-sealed construction which prevents flux from penetrating into the relay base housing due to capillary action. This type of relay cannot be immersed for cleaning. • The case is not designated to be removed during normal handling and operation. Doing so may affect performance. • Use the power relay in a dry environment free from excessive dust, SO2, H2S, or organic gas. • Do not allow a voltage greater than the maximum allowable coil voltage to be applied continuously. ■ CONNECTION Refer to the diagram below when connecting a wire to the screw terminals on G7J. 7.6 (0.299) • Do not use the relay outside of specified voltages and currents. • Do not allow the ambient operation temperature to exceed the specified limit. ■ INSTALLATION Although there are not specific limits on the installation site, it should be as dry and dust-free as possible. PCB terminal-equipped relays weigh approximately 140 g. Be sure that the PCB is strong enough to support them. OMRON recommends dual-side through-hole PCBs to reduce solder cracking from heat stress. 6 8.8 (0.346) 7 (0.276) 4.5 (0.177) M3.5 Allow suitable slack on leads when wiring, and do not subject the terminals to excessive force. Maximum tightening torque is 10 kgf-cm (72.50 ft-lbs). G7J G7J OMRON ELECTRONICS, INC. OMRON CANADA, INC. One East Commerce Drive Schaumburg, IL 60173 885 Milner Avenue Scarborough, Ontario M1B 5V8 1-800-55-OMRON 416-286-6465 Cat. No. GC RLY7 01/00 Specifications subject to change without notice. Printed in the U.S.A. 7