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

MS47-63 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.

MS47-63 is applicable to a line of AC 50Hz/60Hz, 230V in single pole, 400V in double,three, four poles for protecting overload and short circuit, and rated current up to 63A. It can also be used for infrequent line conversion under the normal condition.The breaker is applicable to lighting distribution system in industrial enterprise, commercially district, high-rise building and dwelling house. It conforms with the standards of IEC60898.

mcb ms47 63 serial
mcb ms47 63 serial

2. Main Technical Parameter.

Type MS47-63
Pole 1P 2P, 3P, 4P
Rated current (A) 6, 10, 16, 20, 25, 32, 40, 50, 63
Rated voltage (V) 220 400
Ambient temperature -5    ~     +40˚C
Type of instartaneous release C D C D
Rated short circuit breaking capacity Icn (kA)

1-32A: 6

50-63A: 4 (6)

4 (6)

1-32A: 6

50-63A: 4 (6)

4 (6)

3. Applicable Conducting Wire.

Rated current(A) Norminal cross section of wire mm2
1-6A 1
10A 1.5
16,20A 2.5
25A 4
32A 6
40,50A 10
63A 16

4. The Over-current Protection Property.



Initial Status



Test time Expected result Note
30±2˚C Cold position 1.13In t 1h Non-release _

Carried out immediately

after previous test

1.45In t<1h Release _
Cold position 2.55In 1s<t<60s (In 32A) Release

Current smoothly rises to

special value within 5s

Cold position 2.55In 1s<t<120s (In 32A) Release
30±2˚C Cold position 3In t 0.1s Non-release Type B
Cold position 5In t<0.1s Release Type B
Cold position 5In t 0.1s Non-release Type C
Cold position 10In t<0.1s Release Type C
Cold position 10In t 0.1s Non-release Type D
Cold position 20In t<0.1s Release Type D

5. Dimension.

mcb ms47 63 serial dimenson
mcb ms47 63 serial dimenson


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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