Power Relays G7Z CSM G7Z DS E 6 3 Multi-pole Power Relay for Contactor Current Range Capable of Carrying and Switching 40 A at 440 VAC One pole, 40 A can be carried and switched. The maximum load capacity of 160 A when using 4-pole parallel connections. All materials used are compliant with the RoHS Directive EN 60947-4-1 certification for mirror contact mechanisms has been obtained by using a combination of the relay and auxiliary contact blocks. A design with a small number of openings makes it difficult for dust or foreign matter to enter. Ideal for supply power to industrial inverters, servo drivers, and other devices, and switching power to motors and other equipment. Conforms to European PV standard (VDE0126). Be sure to read the Safety Precautions on page 6 and the Precautions for All Relays with Forcibly Guided Contacts. For the most recent information on models that have been certified for safety standards, refer to your OMRON website. Model Number Structure Model Number Legend Relay with Auxiliary Contact Block Relay G7Z- G7Z- - 1 12 3 1. Relay Contact Configuration 1. Contact Configuration 4A: 4PST-NO 4A: 4PST-NO 3A1B: 3PST-NO/SPST-NC 3A1B: 3PST-NO/SPST-NC 2A2B: DPST-NO/DPST-NC 2A2B: DPST-NO/DPST-NC 2. Contact Configuration of Auxiliary Contacts 20: DPST-NO Auxiliary Contact Block 11: SPST-NO/SPST-NC 02: DPST-NC G73Z- 3. Contact Mechanism of Auxiliary Contacts 1 2 Z: Bifurcated crossbar contact 1. Contact Configuration of Auxiliary Contacts 20: DPST-NO 11: SPST-NO/SPST-NC 02: DPST-NC 2. Contact Mechanism of Auxiliary Contacts Z: Bifurcated crossbar contact Ordering Information Relay with Auxiliary Contact Block Relay with Auxiliary Contact Block (for Screw Terminals) Structure Contact configuration Rated Voltage Model Auxiliary Contact Relay Classification Block DPST-NO G7Z-4A-20Z 4PST-NO SPST-NO/SPST-NC G7Z-4A-11Z DPST-NC G7Z-4A-02Z DPST-NO G7Z-3A1B-20Z Relay with Auxiliary 4 poles + 3PST-NO/SPST-NC SPST-NO/SPST-NC 12, 24 VDC G7Z-3A1B-11Z Contact Block 2 poles DPST-NC G7Z-3A1B-02Z DPST-NO G7Z-2A2B-20Z DPST-NO/DPST-NC SPST-NO/SPST-NC G7Z-2A2B-11Z DPST-NC G7Z-2A2B-02Z Note: 1. Relay contact terminals are M5, and the coil terminals are M3.5. 2. Auxiliary contact block terminals are M3.5. 3. When placing an order, specify the model number and rated supply voltage (12 VDC or 24 VDC). 1G7Z Relay Structure Contact configuration Rated Voltage Model Classification 4PST-NO G7Z-4A Relay 4 poles 3PST-NO/SPST-NC 12, 24 VDC G7Z-3A1B DPST-NO/DPST-NC G7Z-2A2B Note: 1. Relay contact terminals are M5, and the coil terminals are M3.5. 2. When placing an order, specify the model number and rated supply voltage (12 VDC or 24 VDC). Accessories (Order Separately) Auxiliary Contact Block Classification Structure Contact Configuration Model DPST-NO G73Z-20Z Auxiliary Contact Block 2 poles SPST-NO/SPST-NC G73Z-11Z DPST-NC G73Z-02Z Specifications Ratings Coil Item Must operate Must release Maximum Rated Coil Power voltage voltage voltage current resistance consumption (mA) () (W) Rated voltage Percentage of rated voltage 12 VDC 308 39 75% max. 10% min. 110% Approx. 3.7 24 VDC 154 156 Note: 1. Rated current and coil resistance were measured at a coil temperature of 23C with coil resistance of 15%. 2. Operating characteristics were measured at a coil temperature of 23C. 3. The maximum allowable voltage is the maximum value of the fluctuation range for the Relay coil operating power supply and was measured at an ambient temperature of 23C. There is, however, no continuous allowance. Contacts Relay Auxiliary Contact Block G7Z-4A- Z, G7Z-3A1B- Z, Model G73Z-20Z, G73Z-11Z, G73Z-02Z Model G7Z-2A2B- Z Inductive Resistive Resistive Inductive Resistive Load load cos = load L/R = 1 Resistive load Load load cos = load L/R = 1 Item 0.3 ms load Item 0.3 ms Contact structure Double break Contact structure Double break Contact material Au clad + Ag Contact material Ag alloy 1 A at 0.5 A at 0.5 A at Rated load 40 A at 22 A at 5 A at 440 VAC 440 VAC 110 VDC NO 440 VAC 440 VAC 110 VDC Rated carry current 1 A Rated load 25 A at 10 A at 5 A at NC Maximum contact voltage 480 VAC 125 VDC 440 VAC 440 VAC 110 VDC Maximum contact current 1 A 0.5 A NO 40 A * Rated carry current Maximum switching capacity 440 VA 220 VA 55 W NC 25 A Failure rate P value 1 mA at 5 VDC Maximum contact voltage 480 VAC 125 VDC (reference value) NO 40 A 22 A 5 A Maximum contact current NC 25 A 10 A 5 A NO 17,600 VA 9,680 VA 550 W Maximum switching capacity NC 11,000 VA 4,400 VA 550 W Failure rate P value 2 A at 24 VDC (reference value) Note: The ratings for the auxiliary contact block mounted on the G7Z are the same as those for the G73Z auxiliary contact block. * Set of Relay and Auxiliary Contact Block: 45 to 60C for the continuous carry current, reduce 40 A by 0.7 A/C. 2