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Equipment Description
01.4IB.26263B
B. r
AtInGS
Table A Powell Low Voltage Arc Resistant Switchgear Ratings - Type 2B
Maximum
Voltage
(volts)
Arc Fault
Current
(kA)
Short Time Current
Short Circuit Current
Main Bus
(kA)
Riser Bus
(kA)
Main Bus
(kA)
Riser Bus
(kA)
635
85(.5s)
100
100
150
150
Table B Magnum DS Circuit Breaker Ratings
Continuous
Current Rating
(Amperes)
Breaker Type
Interrupting Class
(kA rms sym)1
Short Time 0.5s
(kA rms sym)1
254Vac
508Vac
635Vac
800
MDS-408
42
42
42
42
MDS-608
65
65
65
65
MDS-808
85
85
85
85
1200
MDS-612
65
65
65
65
MDS-812
85
85
85
85
1600
MDS-616
65
65
65
65
MDS-816
85
85
85
85
2000
MDS-620
65
65
65
65
MDS-820
85
85
85
85
2500
MDS-625
65
65
65
65
MDS-825
85
85
85
85
3000
MDS-630
65
65
65
65
MDS-830
85
85
85
85
3200
MDS-632
65
65
65
65
MDS-832
85
85
85
85
4000
MDN-840
85
85
65
85
Note:
Standard frame circuit breakers rated 100kA are equipped with a high instantaneous
trip set to the withstand level.
