1.MTmax series power moulded case circuit breaker is the lasted model of MCCB, suitable for circuit AC 50Hz/60Hz, rated voltage up to AC 660V, rated operating current up to 1600A.

2.It features normal structure, reliable performance, high breaking capacity.

3.Used for power distribution and protecting the circuit and electrical equipment against overload and short circuit.

4.It complies with standard of IEC60947-2.


1. Installation way: Mounted vertically, Horizontal installation;
2. By use of circuit breaker usage: Distribution protection, Motor protection;
3. According to the mode of wiring points: Front panel wiring, Back panel wiring , Plug-in connection;
4. According to the mode of operation: direct operating handle, External turning the handle operations, electric operation;
5. By release type distinction: instantaneous action release (magnetic release), thermal + electromagnetic release (duplex); electronic release;
6.  Poles Number: 3poles, 4poles;

Type MTMAX-160 MTMAX-250
Poles No. 3 3
Rated current In(A) 16-160 100-250
Rated operating voltage Ue(V)(50/60Hz) 690 690
Rated insulation voltage Ui(V) 800 800
Rated impulse withstand voltage Uimp(KV) 8 8
Utilisation category A A
Rated limited short-circuit breaking capacity Icu(KA) 220/230V 25 50
380/415V 16 36
400V 10 25
500V 8 20
690V 3 5
500V-3poles in series 16 36
Rated short-circuit service breaking capacity Ics 100 75


Outline and Installation Dimension

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MTmax series 160A automatic regulation moulded case circuit breaker with different rated current mainly protecting the circuit and electrical equipment against overload and short circuit.


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