New Product
Power Relays
G7Z
Compact Electromagnetic Contactors That
Switch 40 A at 440 VAC
• One pole carries 40 A.
UL 508 and UL 840 NC contacts (resistive 40 A 480 VAC, 60 Hz,
80,000 operations).
EN 60947-4-1 NC contacts (AC1 40 A 440 VAC, 50/60 Hz, 80,000 operations).
• Ideal for supply power to industrial inverters, servo drivers, and other devices,
and switching power to motors and other equipment.
• The maximum load capacity of 160 A when using 4-pole parallel connections.
• EN 60947-4-1 certification for mirror contact mechanism obtained by combining
the Relay with an Auxiliary Contact Block.
• Conforms to European PV standard (VDE0126).
• Approx. 30% less operation noise than a standard electromagnetic contactor.*
(Approx. 100 dB reduced to approx. 70 dB.)
• Approx. 50% the volume of a standard electromagnetic contactor*
to help downsize control panels.
* According to OMRON investigation of IIEC-AC1 50 A specifications.
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
1
2 3
1. Relay Contact Configuration
4A: 4PST-NO
3A1B: 3PST-NO/SPST-NC
1. Contact Configuration
4A:
4PST-NO
3A1B: 3PST-NO/SPST-NC
2A2B: DPST-NO/DPST-NC
2A2B: DPST-NO/DPST-NC
2. Contact Configuration of Auxiliary Contacts
20:
11:
02:
DPST-NO
SPST-NO/SPST-NC
DPST-NC
Auxiliary Contact Block
G73Z-@@
3. Contact Mechanism of Auxiliary Contacts
Z: Bifurcated crossbar contact
1 2
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
When your order, specify the rated voltage.
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
DPST-NC
G7Z-4A-11Z
G7Z-4A-02Z
DPST-NO
SPST-NO/SPST-NC
DPST-NC
G7Z-3A1B-20Z
G7Z-3A1B-11Z
G7Z-3A1B-02Z
G7Z-2A2B-20Z
G7Z-2A2B-11Z
G7Z-2A2B-02Z
Relay with Auxiliary
Contact Block
4 poles +
2 poles
3PST-NO/SPST-NC
12, 24 VDC
DPST-NO
DPST-NO/DPST-NC SPST-NO/SPST-NC
DPST-NC
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).
1