+84-28-3742 1888
+84-28-3742 1888

MS47-100 Series Miniature Circuit Breaker

  • Overview
    Morning Star Electric Co., Ltd. (Morstar Electric) is the joint venture company between Vietnam and Singapore, we are a producer of professional electrical products and also a provider for both industrial and household markets. The founders of company have more than 18 years of experience in business engineering, international relations, consulting services, etc.

1. Application.

MS47-100 is such features as delicate appearance, light weight, excellent and reliable performance, high breaking capacity, rapid tripping and mounted by rail. Its enclosure and com-ponents adopts high fire-retarding and shock-resistance plastic of long durability. It mainly serves for protecting the circuits of AC 50/60Hz, 230V of single pole, 400V of two poles or three or four poles from overload or short-circuit, and also for unfrequent making and breaking electrical apparatus and lighting circuit.It conforms with the standards of IEC60947-2.

mcb ms47 100 serial
mcb ms47 100 serial


2. Main Technical Parameter.

Type MS47-100
Pole 1P 2P, 3P, 4P
Rated current (A) 63, 80, 100
Rated voltage (V) 220 400
Ambient temperature - 5˚C     ~     +40˚C
Type of instartaneous release C, D
Rated short circuit breaking capacity Icn (kA) 6 (10)


3. Applicable Conducting Wire.

Rated current(A) Norminal cross section of wire mm2
63A 16
80A 25
100A 35


4. The Over-current Protection Property.

Ambient temperature Initial Status Test Current Test time Expected result Note
40±2˚C Cold position 1.05In (In 63A) t 1h Non-release -
Cold position 1.05In (In 63A) t 2h Non-release -

Carried out immediately

after previous test

1.30In (In 63A) t<1h Releas

Current smoothly rises to

special value within 5s

1.30In (In 63A) t<2h Releas
-40˚C  ~  +40˚C Cold position 8.00In t 0.2s Non-release Type B
Cold position 10.00In t<0.1s Non-release Type C


5. Dimension.

mcb ms47 100 serial dimension
mcb ms47 100 serial dimension


We are also one of the leading manufacturers and exporters of a wide range of SMC Pole Mounted Junction Boxes (Street Light Boxes). These are manufactured using high grade material and are provided with a protection cover to avoid shocks. These boxes are highly durable and are offered in standard specifications to our clients.

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We apply a policy of continuous development of its products and reserves the right to make changes in the specifications and technical characteristics without notice, For further information please contact Morstar.

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