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G7Z
Multi-pole Power Relay for Contactor Current Range Capable of Carrying and Switching 40 A at 440 VAC
Data Sheet (684KB)
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Ratings
Coil Ratings
| Item | Rated current (mA) | Coil resistance (Ω) | Must operate voltage | Must release voltage | Maximum voltage | Power consumption (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 23℃ with coil resistance of ±15%.
2. Operating characteristics were measured at a coil temperature of 23℃.
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 23℃.
There is, however, no continuous allowance.
Contact Ratings
Relay
| Model | G7Z-4A-[]Z, G7Z-3A1B-[]Z, G7Z-2A2B-[]Z | |||
| Load | Resistive load | Inductive load cosΦ = 0.3 | Resistive load L/R = 1 ms | |
| Contact structure | Double break | |||
| Contact material | Ag alloy | |||
| Rated load | NO | 40 A at 440 VAC | 22 A at 440 VAC | 5 A at 110 VDC |
| NC | 25 A at 440 VAC | 10 A at 440 VAC | 5 A at 110 VDC | |
| Rated carry current | NO | 40 A | ||
| NC | 25 A | |||
| Maximum contact voltage | 480 VAC | 125 VDC | ||
| Maximum contact current | NO | 40 A | 22 A | 5A |
| NC | 25 A | 10A | 5A | |
| Maximum switching capacity | NO | 17,600 VA | 9,680 VA | 550 W |
| NC | 11,000 VA | 4,400 VA | 550 W | |
| Failure rate P value (reference value) | 2 A at 24 VDC | |||
Note: The ratings for the auxiliary contact block mounted on the G7Z are the same as those for the G73Z auxiliary contact block.
Auxiliary Contact Block
| Model | G73Z-20Z, G73Z-11Z, G73Z-02Z | |||
| Load | Resistive load | Inductive load cosΦ = 0.3 | Resistive load L/R = 1 ms | |
| Contact structure | Double break | |||
| Contact material | Au clad + Ag | |||
| Rated load | 1 A at 440 VAC | 0.5 A at 440 VAC | 0.5 A at 110 VDC | |
| Rated carry current | 1A | |||
| Maximum contact voltage | 480 VAC | 125 VDC | ||
| Maximum contact current | 1A | 0.5 A | ||
| Maximum switching capacity | 440 VA | 220 VA | 55 W | |
| Failure rate P value (reference value) | 1 mA at 5 VDC | |||
Characteristics
| Classification | Relay *5 | Auxiliary contact block | |
| Model | G7Z-4A-[]Z, G7Z-3A1B-[]Z, G7Z-2A2B-[]Z | G73Z-20Z, G73Z-11Z, G73Z-02Z | |
| Contact resistance *1 | 400 mΩ max. | 100 mΩ max. | |
| Operating time *2 | 50 ms max. | ||
| Release time *2 | 50 ms max. | ||
| Maximum operating frequency | Mechanical | 1,800 operations/h | |
| Rated load | 1,200 operations/h | ||
| Insulation resistance *3 | 1,000 MΩ min. | ||
| Dielectric strength | Between coil and contacts | 4,000 VAC, 50/60 Hz for 1 min | --- |
| Between contacts of different polarity | 4,000 VAC, 50/60 Hz for 1 min | ||
| Between contacts of the same polarity | 2,000 VAC, 50/60 Hz for 1 min | ||
| Impulse withstand voltage | Between coil and contacts | 10 kV, 1.2 × 50 μs | --- |
| Between contacts of different polarity | 10 kV, 1.2 × 50 μs | ||
| Between contacts of the same polarity | 4.5 kV, 1.2 × 50 μs | ||
| Vibration resistance | Destruction | 10 to 55 to 10 Hz, 0.5-mm single amplitude (1.0-mm double amplitude) | |
| Malfunction | NO: 10 to 55 to 10 Hz, 0.5-mm single amplitude (1.0-mm double amplitude) NC: 10 to 32 to 10 Hz, 0.5-mm single amplitude (1.0-mm double amplitude) | ||
| Shock resistance | Destruction | Screw mounting: 700 m/s2, DIN Track mounting: 500 m/s2 | |
| Malfunction | NO: 100 m/s2 NC: 25 m/s2 | ||
| Durability | Mechanical | 1,000,000 operations min. (at 1,800 operations/h, contact no load) | |
| Electrical *4 | AC resistive load: 80,000 operations AC inductive load: 80,000 operations DC resistive load: 100,000 operations (at 1,200 operations/h, rated load) | ||
| Failure rate (P level) (reference value) *6 | 2 A at 24 VDC | 1 mA at 5 VDC | |
| Ambient operating temperature | -25 to 60°C (with no icing or condensation) | ||
| Ambient operating humidity | 5% to 85% | ||
| Weight | Approx. 330 g | Approx. 18 g | |
Note: The above values are initial values.
*1.The contact resistance for the Relay (G7Z) was measured with 1 A at 5 VDC using the voltage drop method.
The contact resistance for the auxiliary contact block (G73Z) was measured with 0.1 A at 5 VDC using the voltage drop method.
*2.The operate time was measured with the rated voltage imposed with any contact bounce ignored at the ambient temperature of 23℃.
*3.The insulation resistance was measured with a 1,000-VDC megohmmeter applied to the same places as those used for checking the dielectric strength.
*4.The electrical endurance was measured at an ambient temperature of 23℃.
*5.The specifications for the auxiliary contact block mounted on the G7Z are the same as those for the G73Z auxiliary contact block.
*6.The failure rate is based on an operating frequency of 1,800 operations/h.
Caution: In the interenst of product improvement, specifications are subject to change without notice.
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