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Vacuum Interrupters for AC Contactors:TJ-7.2/400B
Rated  Current (A) 400
Rated Voltage (KV) 7.2
Rated Short-Current 4/100
Rated Breaking Capacity 3.2/25
Limited Breaking Capacity 6/3
Rated Short-time(1min) Power-Frequency Withshand Voltage 20
Contact Force From Atmosphere 53±7
Circuit Resistance At Contact Force From Atmosphere ≤100
Contact Stroke(mm) 4.8
Overtrave(mm) 2
Average Opening Speed 0.5~0.7
Average closing speed 0.1~0.3
Rated Added External Contactfinal Force 120
TJ-7.2/400B