G7Z

Features

Compact 160 Amp Power Relay

G7Z series provides a compact, cost efficient solution for applications such as inverters, UPS, solar and fuel-cell battery circuits. Relay in combination with auxiliary contact block meets EN 60947-4-1. Coil ratings are available in 12 and 24 VDC. Power consumption is less than 4 watts.

  • Switching current 160 A (40 A rating / 4-pole / IEC-AC1)
  • Switching voltage 440 VAC
  • Safety function with mirror contacts in various configurations
  • Power consumption less than 4 Watts
  • Low Switching Noise (70 dB)
Specifications & ordering info

Ordering information

Relay with Auxiliary Contact Block (for Screw Terminals)

Contact configuration

Rated voltage

Order code

Relay

Auxiliary contact block

4PST-NO

DPST-NO

12, 24 VDC

G7Z-4A-20Z

SPST-NO/SPST-NC

G7Z-4A-11Z

DPST-NC

G7Z-4A-02Z

3PST-NO/SPST-NC

DPST-NO

G7Z-3A1B-20Z

SPST-NO/SPST-NC

G7Z-3A1B-11Z

DPST-NC

G7Z-3A1B-02Z

DPST-NO/DPST-NC

DPST-NO

G7Z-2A2B-20Z

SPST-NO/SPST-NC

G7Z-2A2B-11Z

DPST-NC

G7Z-2A2B-02Z

Specifications

Coil ratings

Rated voltage

Rated current

Coil resistance

Must operate voltage

Must release voltage

Max. voltage

Power consumption (approx.)

% of rated voltage

12 VDC

333 mA

39 Ω

75% max.

10% min.

110%

Approx. 3.7 W

24 VDC

154 mA

156 Ω

  • Note • Rated current and coil resistance were measured at a coil temperature of 23°C with coil resistance of ±15%.
  • • Operating characteristics were measured at a coil temperature of 23°C.
  • • 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°C.

Contact Ratings - Relay

Item

G7Z-4A-_Z, G7Z-3A1B-_Z, G7Z-2A2B-_Z

Resistive load

Inductive load cos phi = 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

22 A

5 A

NC

25 A

10 A

5 A

Maximum contact voltage

480 VAC

125 VDC

Maximum contact current

NO

40 A

NC

25 A

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.

Contact Ratings - Auxiliary Contact Block

Item

G7Z-4A-_Z, G7Z-3A1B-_Z, G7Z-2A2B-_Z

Resistive load

Inductive load cos phi = 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

5 A at 110 VDC

Rated carry current

1 A

Maximum contact voltage

480 VAC

125 VDC

Maximum contact current

1 A

Maximum switching capacity

440 VA

220 VA

110 W

Failure rate P value (reference value)

1 mA at 5 VDC

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