G7Z-4A-02Z DC24 Omron, G7Z-4A-02Z DC24 Datasheet - Page 8

• Manufacturer Part Number: G7Z-4A-02Z DC24
• Description: RELAY POWER 4PST 40A 24VDC
• Manufacturer: Omron
• Series: G7Zr

Specifications of G7Z-4A-02Z DC24

• Relay Type: General Purpose
• Contact Form: 4PST (4 Form A)
• Contact Rating (current): 40A
• Switching Voltage: 480VAC - Max
• Coil Type: Standard
• Coil Current: 154mA
• Coil Voltage: 24VDC
• Turn On Voltage (max): 18 VDC
• Turn Off Voltage (min): 2.4 VDC
• Mounting Type: Chassis Mount
• Termination Style: Screw Terminal
• Circuit: 4PST (4 Form A)
• Contact Rating @ Voltage: 40A @ 440VAC
• Control On Voltage (max): 18 VDC
• Control Off Voltage (min): 2.4 VDC
• Contact Rating: 40 A at 440 VAC
• Contact Termination: Screw
• Power Consumption: 3.7 W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: G7Z-4A-02ZDC24; G7Z4A02ZDC24

Connecting
• Use round or open-end (Y-type) crimp terminals and connect the
Relay Contacts (Unit: mm)
Relay Coil
Auxiliary Contact Block
• One crimp terminal can be used for the Relay contact section (M5
Recommended Crimp Terminals and Wire
• Use the following tightening torque when tightening screws. Loose
• Allow suitable slack on leads when wiring, and do not subject the
Microloads
The G7Z is used for switching power loads, such as current carry for
device power supplies and heater loads. Use an auxiliary contact
block (G73Z) if microloads are required for signal applications and
operation status feedback.
336
Contact
section
Coil section 1.25-3.5
terminals with the appropriate tightening torque. Refer to the termi-
nal section space in the following figure for the crimp terminal
dimensions.
screw). Two crimp terminals can be connected for the coil terminal
and auxiliary contact block.
screws may result in fire caused by abnormal heat generated when
the power is being supplied.
M5 screws: 2.0 to 2.2 N•m
M3.5 screws: 0.8 to 0.9 N•m
terminals to excessive force.
Location
5.5-5
8-5
Power Relays
6
6
terminals
12.5
Crimp
5.5
5.5
6.8
2.63 to 6.64 mm
6.64 to 10.52 mm
0.5 to 1.65 mm
4.3
14.5
9.5
G7Z
Appropriate wire size
6.8
M3.5
M5
2
M3.5
2
(AWG20 to 16)
2
(AWG12, 10)
11
(AWG8)
Operating Coil
(Internal Connections of Coils)
DC Coil
• If a transistor drives the G7Z, check the leakage current and con-
• The must operate voltage is the minimum value for the Relay arma-
Mirror Contact Mechanism
By combining a Relay with an auxiliary contact block, all NC contacts
of the auxiliary contact block will satisfy an impulse withstand voltage
of more than 2.5 kV or maintain a gap of more than 0.5 mm when the
coil is de-energized even if at least one NO contact (main contact) of
the Relay is welded (according to EN 60947-4-1).
Description of Mirror Contact Mechanism
nect a bleeder resistor if necessary.
ture to operate and the contacts to turn ON. Therefore, fundamen-
tally apply the rated voltage to the coils, taking into consideration
the increases in coil resistance caused by voltage fluctuation and
coil temperature rise.
Contact welding
A2
Impulse withstand voltage: 2.5 kV min. or
contact separation (a + b): 0.5 mm min.
a
NO
NC
b
NO
Auxiliary contact block
NC
NO
A1
NO
Relay