Detailed Product Description
OM8 Moulded Case Circuit Breaker (NS,MCCB)
1.Application
OM8 series moulded case circuit breaker is one of breaker which adopts international ad-vanced design, manufacture technology to develop. The rated insulating voltage is 750V, suit-able for AC 50Hz(60Hz),rated working voltage 690V or below, rated working current is 12.5A to1250A of circuit and used in distributing electric energy, and non-frequent breaking in the nor-mal conditions , protecting the current& equipment from overload&under voltage, circuit breakerwith rated frame current 400A or below,can be used in mousecage motor's non-frequent start,breaking during working, protecting motor from overload, short circuit&undervoltage,the prod-uct conforms to IEC60947-2 standard.
2.Main Technical Specifications
Type | Pole number | Rated insulating voltage(V) | Rated operating voltage(V) | Rated ultimate short circuit breaking capacity Icu (KA) at 380/415V | Rated servies short circuit breaking capacity Ics at 380/415V(KA) | Operation performance | Utilization category | |
ON | OFF | |||||||
OM8-100N | 3, 4pole | 750 | 690 and below | 25 | 25 | 1500 | 8500 | A |
OM8-100H | 70 | 70 | ||||||
OM8-100L | 150 | 150 | ||||||
OM8-160N | 36 | 36 | 1000 | 7000 | ||||
OM8-160H | 70 | 70 | ||||||
OM8-160L | 150 | 150 | ||||||
OM8-250N | 36 | 36 | 1000 | 7000 | ||||
OM8-250H | 70 | 70 | ||||||
OM8-250L | 150 | 150 | ||||||
OM8-400N | 45 | 45 | 1000 | 4000 | ||||
OM8-400H | 70 | 70 | ||||||
OM8-400L | 150 | 150 | ||||||
OM8-630N | 45 | 45 | 1000 | 4000 | ||||
OM8-630H | 70 | 70 | ||||||
OM8-630L | 150 | 150 | ||||||
OM8-1250N | 3 pole | 50 | 37.5 | 1000 | 4000 | |||
OM8-1600N | 50 | 37.5 | ||||||
Note:1. The N-pole breaker has no protection which closing and opening with the other three poles. 2. The type of thermal magnetic for OM8-400/630 has no four poles.
