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  • Name: GRT508M-120A
  • ·: ◇ 120A three sets of contacts switching simultaneously, auxiliary contact can be added
  • ·: ◇ Only impulse excitation needed, both for single and double coil
  • ·: ◇ Custom assemblies available with flexible wire and/or copper straps, and/or with integrated shunt
  • ·: ◇ 4KV dielectric strength between coil and contacts
  • ·: ◇ RoHS compliant
  • ·: ◇ Outline dimensions:(110 x 52 x 24) mm
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Coil Data (20℃)

Coil Voltage

Coil Resistance (Ω)

Coil Power (W)

Operating Voltage

Releasing Voltage

Allowing Voltage

Pulse Duration   

(VDC)

Single    Double

Single  Double

(VDC)

(VDC)

(VDC)

(ms)

6

16.2

8.1/8.1

5.0

10.0

≤6.3

≤6.3

13.5

≥120

9

28.8

14.4/14.4

8.4

8.4

18

12

115.2

57.6/57.6

 ≤16.8

16.8

36

24

460

230/230

 ≤33.6

 ≤33.6

72

Contact Data

Characteristics

Contact Form

3B

Operate Time

60ms Max.

Contact Material

AgSnO2

Release Time

60ms Max.

Contact Resistance

Max.1.0mΩ (1A 6VDC)

Insulation Resistance (500VDC)

1000MΩ Min.

Dielectric Strength (50/60Hz,1Min)

Contact to Coil

4000VAC

Rated Load(Resistive)

120A    250VAC

Across Open Contacts

2000VAC

Max.Switching Voltage

380VAC

Contact to contact

4000VAC

Max.Switching Current

120A

Surge Voltage (1.2/50μs)

Contact to Coil

12KVAC

Max.Switching Power

30000VA

Service Life

Mechnical Endurance

1×105OPS

Dielectric Creepage

8mm

Electrical Endurance

6×103OPS

Unit Weight

About 380g

Max.Short-Circut Current

3000A/10ms 

Outline Dimension (without connecting parts)

110X52X24 (mm)

Environmental Data

Ambient Temperature

 -40℃~+85

Relative Humidity

5%-85% RH

Vibration

10-55Hz 1.5mm

Shock

98m/s2

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