CMTB1-63DC 3P DC Solar MCB Miniature Circuit Breaker

Short Description:

CMTB1-63 DC MCB miniature circuit breaker can interrupt or break the flow of electric current in a DC circuit. It is used to prevent damage to equipment and to protect against electrical hazards such as short circuits, overloads, and ground faults.

Product Detail

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Product Details

CMTB1-63 DC MCB miniature circuit breaker  are available in various sizes and ratings, and they can be used in a wide range of applications, including solar power systems, battery backup systems, marine and automotive systems, and industrial machinery.

The voltage states of DC MCB is generally from DC 12V-1000V, and the rated current can up to 63A.

Standard IEC/EN 60947-2
Rated current In (A) 1A- 63A
Poles 3
Rated voltage Ue (V) 750V
Rated frequency 50/60Hz
Rated short circuit capacity Icn 6000A
Ambient temperature -20℃~+70℃
Curve type  C
Pollution degree  3
Altitude ≤ 2000m
Maximum wiring capacity 25 m㎡
Installation 35mm DIN Rail
Line incoming type  Top


1.Protection Against Overload and Short-Circuit

2.Tripping Characteristics: DC MCBs have a different tripping characteristic compared to AC MCBs due to the different nature of DC voltage.

3.Voltage Rating: DC MCBs have a voltage rating specifically for DC circuits, typically ranging from 12V to 1000V DC.

4.Arc Interruption: DC MCBs are designed to interrupt DC arcs, which behave differently than AC arcs.


CMTB1-63DC 1P _1
CMTB1-63DC 2P _1
CMTB1-63DC 3P _1
CMTB1-63DC 4P _1


The DC MCB Miniature circuit breakers are widely used in some direct current systems , such as new energy, solar PV,  power plants and industrial facilities ...etc



4 pcs per inner box, 80 pcs per outer box .
Dimension per outer box: 41*21.5*41.5 cm

Q & C

With ISO 9001, ISO14001 management system certificates, the products are qualified by international certificates CCC, CE, CB.

Main Market

MUTAI Electric focus on Middle East, Africa, South East Asia, South America, Russia Market.

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