Beskrivning

MS25 motor protection circuit breakers

Motor protection circuit breakers are special type of circuit breakers designed for protection of wide range of single-phase and three-phase ac motors against overload and short circuit. They are used in industry, small machines, agricultural machines, compressors etc.

For motor protection

All kind of AC induction motors

For three-phase motors up to 22 kW

Protection of other loads

Various low-inductive loads

Version with a thermal overload release for single-phase consumers MST20

Version with thermal and magnetic release for single-phase consumers MS20

Version for short-circuit protection MSZ25

Version for transformer protection MS25TR

Other Benefits

Manual control:-   START, STOP, push-buttons – Test of release function (TEST)

Automatic switch-off at over-current with thermal or magnetic release

Control with under-voltage release or shunt release

An auxiliary switch for side mounting or flush mounting used for indication of  the switching state

Indication of release with trip indicating auxiliary switch

ON/OFF buttons positions unequivocally indicates switching position of main  contacts

Contact material :-   resistant to contact welding-   enables low contact heating Isolating distance between contacts: 4.5 mm per contact place

Connection of a rigid or flexible conductor

Assemby to 35 mm wide mounting rail in compliance with EN 60715

Vertical or horizontal operational position

As required by IEC 60947-1, the manual motor starter features a trip-free  mechanism. This means that the manual motor starter trips even if the handle  is locked in the “ON” position or held by hand