Zhejiang, China
Business Type:
Number of Employees:
Year of Establishment:
Management System Certification:
ISO9001:2008, ISO14001:2004, OHSAS18001:2007
Average Lead Time:
Peak season lead time: one month
Off season lead time: one month
OEM/ODM Service
Sample Available
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MCCB, MCB, RCCB manufacturer / supplier in China, offering Stong Stm1-400A 630A Moulded Case Circuit Breaker MCCB, 30V DC 0-28V 30W Hand Crank Generator Outdoor Portable Generator, Vs1 11kv 12kv Safety Vacuum Circuit Breaker Indoor Type and so on.

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Stong Stm1-400A 630A Moulded Case Circuit Breaker MCCB

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Purchase Qty. / Reference FOB Price
300-499 Pieces US $35
500+ Pieces US $34
Port: Ningbo, China
Production Capacity: 10000
Payment Terms: L/C, T/T, D/P, Western Union, Paypal
Breaking Capacity: Low Voltage Circuit Breakers
Operation: Electric Type
Speed: High-Speed Circuit Breaker
Arc-extinguishing Medium: Air
Installation: Fixed
Structure: MCCB

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Basic Info

Model NO.: STM1-400above
Poles Number: 4
Type: Circuit Breaker
Function: Overcurrent Protection
Certification: ISO9001-2000, CE, CB, CCC
Trademark: Shentong
Transport Package: in Wooden Case
Specification: MCCB
Origin: Yueqing City
HS Code: 8536200000

Product Description

            1.Our Company Has Great Reputation In The Market.
            2.Good Quality Guaranteed With Reasonable Price.
            3.OEM, ODM Are Welcomed.
            4.Goods Will Be Delivered On Time.
            5.Factory Selling Directly

Model (3P; 4P)
STM1-63L,  STM1-63M : 10, 12, 16, 20, 25, 32, 40, 50, 63A
STM1-100L, STM1-100M: 16, 20, 25, 32, 40, 50, 63, 80, 100A
STM1-225L, STM1-225M: 125, 160, 180, 200, 225A
Rated frame level current Inm(A)63100225
Rated current In(A)10,12,16,20,25
Rated insulated voltage Ui (AC V)500800800
Rated impulse stand voltage Uimp(V)800080008000
Rated working voltage Ue (AC V)400/415400/415400/415
Rated limited short circuit breaking capacity levelLMLMLMLMLMLM
Rated imited short circuit breaking capacity Icu(KA)400/415V203020303050305035503550
Rated working short circuit breaking capacity Ics(KA)400/415V1522.51522.522.537.522.537.526.2537.526.2537.5
Operation characteristic (Times)Connected200020002000
Outlook dimensionL135150165
Weight (g)7358461464195212571493149319001714201419002014
Arcing distance (mm)0, ≤500, ≤500, ≤50

STM1 series moulded case circuit breaker ( named as MCCB in the following) is a new type breaker which is applied with rated insulating voltage 800V (500V for STM1-63), rated working voltage 400V/415V and used for infrequent exchange and startup in AC (60)Hz condition. The MCCB is of protecting function in overloading, short-circuit, and under voltage situation to protect circuit system and power device from damage.

The MCCB can be devided into L; M; H types according to their rated limit short-circuit breaking capacity.

The MCCB is advantageous for its compact body, high breaking capacity ( some even on flying arc), short arc-casting and superior aseismatic function.

The MCCB has function of insulation.


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