Specification of Motor mechanism MCCB NSX MT100 MT250 MT400 MT630 Remoter Operated Motor
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Motor-mechanism module (Remote Operated Motor Mechanism MT100-250 MT400-630)
When equipped with a motor-mechanism module, Compact NS circuit breakers feature very high mechanical endurance as well as easy and sure operation:
- all circuit-breaker indications and information remain visible and accessible, including trip-unit settings and indications
- suitability for isolation is maintained and padlocking remains possible
- double insulation of the front face.
Applications
- local motor-driven operation, centralised operation, automatic distribution control
- normal/standby source changeover or switching to a replacement source to optimise energy costs
- load shedding and reconnection to optimise energy costs
- synchrocoupling.
Automatic operation
- circuit-breaker ON and OFF controlled by two impulse-type or maintained control signals
- automatic spring charging following voluntary tripping (by MN or MX), with standard wiring
- mandatory manual reset following tripping due to an electrical fault.
Manual operation
- transfer to manual mode using a switch (9) with possibility of remote mode indication
- circuit-breaker ON and OFF controlled by 2 pushbuttons
- recharging of stored-energy system by pumping the lever 9 times
- padlocking in OFF position.
Installation and connection
All installation (fixed, plug-in/withdrawable) and connection possibilities are
maintained.
Motor-mechanism module connections are made behind its front cover to
integrated terminals, for cables up to 2.5 mm2.
Accessories
- keylock for locking in OFF position
- operations counter for the Compact NS400 and NS630, indicating the number of
ON and OFF cycles. The counter must be installed on the front of the motormechanism
module.
