Power Relays
G7Z
CSM_G7Z_DS_E_5_1
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 complia nt 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 inve rters, 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.
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.
2