Molded Case Circuit Breaker
DM (DORMAN)
DM (DORMAN)Application
- DORMAN Series Moulded Case Circuit Breaker is available in two frame sizes from 25 to 800amps, loadline series of moulded case circuit breakers provide overload and short-circuit pro-tection for the full range of transformer sizes encountered in normal service. The overload andinstantaneous tripping elements, adjustable over all wide band, make these MCCBs ideal formany distribution application.
Technical Data
| Type | DM-100 | DM-160 | DM-250 | DM-400 | DM-630 | DM-800 |
| Poles number | 1,3 | 3 | 3 | 3 | 3 | 3 |
| Rated current In(A) | 25,32,40,50,60,80,100 | 125,160 | 160,200250 | 300,400 | 500,630 | 700,800 |
| Rated insulation voltage Ui(V) | AC500 | AC660 | AC660 | AC660 | AC660 | AC660 |
| Utilisation category | A | A | A | A | A | A |
| Rated ultimate short-circuit breaking capacity Icu(KA) at 415V | 25 | 65 | 65 | 65 | 65 | 65 |
| Rated short-circuit service breakingcapacity Ics(%Icu) at 415V | 75% | 75% | 75% | 75% | 75% | 75% |
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Tripping Elements
Overload front adjustable 0.7-1.0 times rated current
Instantaneous: non-adjustable AA 25~63=400A
AA 80~250=10In
Switch Disconnector
Current rating In(A): 250 3pold
Dimensioned
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