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Main technical characteristics of AFB 25, AFB 40 arc-free circuit breaker

Main technical characteristics of AFB arc-free circuit breaker

Name of parameter Unit of measurement Value
     AFB 25 AFB 40
Voltage
Maximum operating voltage Umax V DC 1000
Insulation voltage UNm V DC 1800
Test impulse voltage, UNi  V DC 10000
Maximum switching overvoltage 
Zone B acc. to EN50124-2 (< 20 ms)		 V DC <2500 <6000
Current
Rated service current INe А DC 2500 4000
Duty class acc. to IEC 60146-1-1 - VI
Short-circuit current
Steady-state short-circuit current INss kA 80
Peak of the short-circuit current ȊNss kA 100
Maximum breaking current Imax kA 25
Forward current di/dt limit kA/ms 20
Time 
Contacts opening time ms < 1
Total break time ms < 4
Breaking current setting range
Forward breaking current setting range A  400 - 7500 400 - 12000
Reverse breaking current setting range A 400 - 3750  400 - 7500
Weight and size parameters
Circuit breaker weight kg 215  300
WхHхD (L) mm  475x810x955 475x1050x955
Additional data
Commutation life switchings 3х50 000
Protection level  -  IP00
Auxiliaries supply voltage V DC 110, 220