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Power relay G7Z (G7Z-4A DC24)

Power relay G7Z G7Z-4A DC24
  • On Sale Till 31/03/2025

OMRON

OMRON

Other multi-pin power relay in contactor current range that can be opened and closed by energizing 440 V AC / 40 A as a relay.
[Features]
・ 1 pole 40 A can be energized
・ Maximum energization capacity when 4 poles are connected in parallel is 160 A
・ Obtained EN60947-4-1 mirror contact mechanism certification by combining the relay body and auxiliary contact block
・ Designed with few openings to prevent dust and foreign matter from entering
・ Ideal for energizing industrial inverters, servo drivers, etc., and opening and closing power supplies for motors, etc.
・ Compliant with European PV standard (VDE0126)
[Applications]
・ Mainly available for control panels, industrial machines, etc.

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Japanese Only

Part Number

Configured Part Number is shown.

G7Z-4A DC24

Dust & Contaminant-Free Design Compact Electromagnetic Contactors

A maximum load capacity of 160 A when using 4-pole connections

A maximum load capacity of 160 A when using 4-pole connections

"m-h3--wysiwyg">Power Relay G7Z external shape and specifications
Relay main unit (12 V, 24 V DC) + auxiliary contact block set, 4-pole dimensional drawing

Relay main unit (12 V, 24 V DC) + auxiliary contact block set, 4-pole dimensional drawing

StructureContact ConfigurationRated VoltageFormat
Relay Main BodyAuxiliary Contact Block
Relay Main Body +
Auxiliary Contact Block
Set		4 Poles + 2 Poles4 A2 a12, 24 V DCModel G7Z-4A-20Z
1 a 1 b24 VModel G7Z-4A-11Z
2 b24 VModel G7Z-4A-02Z
3 A 1 B1 a 1 b24 VModel G7Z-3A1B-11Z
2 A 2 B1 a 1 b24 VModel G7Z-2A2B-11Z

Relay main body + auxiliary contact block set (for screw terminals)

Rated Voltage (V)Rated Current (mA)Coil Resistance (Ω)Operating VoltageRelease VoltageMaximum Allowable VoltagePower Consumption (W)
On the Basis of Rated Voltage
DC123083975% max.10% min.110%Approx. 3.7
24154156

Ratings / Operation Coil

  • The rated current and coil resistance were measured at a coil temperature of 23°C with a coil resistance of ±15%.
  • The 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. There is, however, no continuous allowance.
FormatModel G7Z-4A-□Z, Model G7Z-3A1B-□Z, Model G7Z-2A2B-□Z
LoadResistive LoadInductive Load 
(cosø = 0.3)		Resistive Load
L/R = 1 ms
Contact MechanismDouble break
Contact MaterialAg alloy
Rated Loada-Contact440 V AC 40 A440 V AC 22 A110 V DC 5 A
b Contact440 V AC 25 A440 V AC 10 A110 V DC 5 A
Rated Carry Currenta-Contact40 A *
b Contact25 A
Max. Contact Voltage Value480 V AC125 V DC
Max. Contact Current Valuea-Contact40 A22 A5 A
b Contact25 A10 A5 A
Maximum Switching Capacity Valuea-Contact17,600 VA9,680 VA550 W
b Contact11,000 VA4,400 VA550 W
Failure Rate (P Level) (Reference Value)24 V DC 2 A

Switch (Contact) / Relay Main Body

  • *The ratings for the auxiliary contact block mounted on the G7Z are the same as those for the G73Z auxiliary contact block.

*Set of relay and auxiliary contact block: 45 to 60°C; for the continuous carry current, reduce 40 A by 0.7 A/°C.

ClassificationRelay Main Body *5
FormatModel G7Z-4A-□Z
Model G7Z-3A1B-□Z
Model G7Z-2A2B-□Z
Contact Resistance *1400 mΩ max.
Operating Time *250 ms max.
Recovery Time *250 ms max.
Maximum Switching FrequencyMechanical1,800 operations/hr
Rated Load1,200 operations/hr
Insulation Resistance *31,000 MΩ min.
Dielectric StrengthBetween Coil And Contact4,000 V AC 50/60 Hz for 1 min
Between Contacts of Different Polarity4,000 V AC 50/60 Hz for 1 min
Between Contacts of Same Polarity2,000 V AC 50/60 Hz for 1 min
Impulse Withstand VoltageBetween Coil And Contact10 kV 1.2 × 50 μs
Between Contacts of Different Polarity10 kV 1.2 × 50 μs
Between Contacts of Same Polarity4.5 kV 1.2 × 50 μs
VibrationDurability10 to 55 to 10 Hz, 0.5-mm single amplitude (1.0-mm double amplitude)
Malfunctiona-contact: 10 to 55 to 10 Hz, 0.5-mm single amplitude (1.0-mm double amplitude)
b-contact: 10 to 32 to 10 Hz, 0.5-mm single amplitude (1.0-mm double amplitude)
ShockDurabilityScrew mounting: 700 m/s2, DIN track mounting: 500 m/s2
Malfunctiona-contact: 100 m/s2
b-contact: 25 m/s2
DurabilityMechanical1,000,000 operations min. (at 1,800 operations/h, contact no load)
Electrical *4AC resistive load: 80,000 operations
AC inductive load: 80,000 operations
DC resistive load: 100,000 operations
(at 1,200 operations/hr, rated load)
Failure Rate (P Level) (Reference Value) *624 V DC 2 A
Ambient Operating Temperature-25 to +60°C (assuming no icing or condensation)
Ambient Operating Humidity5 to 85% RH
WeightApprox. 330 g

Performance

  • The values given above are initial values.

*1. Measurement conditions: The contact resistance for the relay (G7Z) was measured with 1 A at 5 V DC using the voltage drop method. G73Z auxiliary Contact block: measured with 0.1 A at 5 VDC using the voltage drop method.
* 2. Measured with the rated voltage applied with any contact bounce ignored and at an ambient temperature of 23°C.
* 3. Measured with a 1,000 V DC ohmmeter at the same places that the dielectric strength was checked.
* 4. Ambient temperature: +23°C
*5. This value was measured at a switching frequency of 1,800 operations/hr.
* 6. The performance of the auxiliary contact block mounted on the G7Z is the same as that for the G73Z auxiliary contact block.

30
45
60
  1. 1
Part Number
G7Z-4A DC24
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipContact Configuration Contact rated current (minimum value for AC and DC)
(A) 		Coil rated voltage (DC)
(V) 		Dimension depth
(mm) 		Auxiliary contact configuration Contact mechanism AC rated load (AUX contact) DC rated load (AUX contact)

SGD 72.44

1 Piece(s) 4 Day(s) or more [Other] 4a402460----

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  1. 1
 

Basic Information

Application Power Terminal shape Screw terminal Representative Standard CE / UL / TUV / CCC / CSA
Dimension height(mm) 62 Dimension width(mm) 45 AC rated load AC440 40 A (a contact)/ 25 A (b contact)
DC rated load DC110 5 A (a contact)/ 5 A (b contact)

Please check the type/dimensions/specifications of the part G7Z-4A DC24 in the Power relay G7Z series.

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Specification/Dimensions

  • Auxiliary contact configuration

    • 1a1b
    • 2a

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  • Contact mechanism

    • Crossbar twin

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  • AC rated load (AUX contact)

    • AC440V/1A

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  • DC rated load (AUX contact)

    • DC110V/0.5A

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  • Contact Configuration

    • Other
      • 2a2b
      • 4a

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  • Contact rated current (minimum value for AC and DC)(A)

    • 40
    • 40/25

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  • Coil rated voltage (DC)(V)

    • 12
    • 24

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  • Dimension depth(mm)

    • 60
    • 84

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Days to Ship

    • All
    • Same day
    • 4 Day(s) or Less

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Similar Part Numbers

Part Number
G7Z-2A2B DC24
G7Z-4A-11Z DC24
G7Z-4A-20Z DC12
G7Z-4A-20Z DC24
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipContact Configuration Contact rated current (minimum value for AC and DC)
(A) 		Coil rated voltage (DC)
(V) 		Dimension depth
(mm) 		Auxiliary contact configuration Contact mechanism AC rated load (AUX contact) DC rated load (AUX contact)

SGD 89.54

1 Piece(s) 4 Day(s) or more [Other] 2a2b40/252460----

SGD 77.20

1 Piece(s) Same day [Other] 4a4024841a1bCrossbar twinAC440V/1ADC110V/0.5A

SGD 96.30

1 Piece(s) Same day [Other] 4a4012842aCrossbar twinAC440V/1ADC110V/0.5A

SGD 77.20

1 Piece(s) Same day [Other] 4a4024842aCrossbar twinAC440V/1ADC110V/0.5A

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