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Shentong Technology Co., Ltd.

MCCB, MCB, RCCB manufacturer / supplier in China, offering 3phase 4poles 400/415V MCCB Moulded Case Circuit Breaker 400A, 30W Hand Crank Generator Outdoor Generator, Stong Stcbl Type RCCB with High Quality and Good Price Circuit Breaker and so on.

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Supplier Homepage Product VCB&Switchgear accessories Indoor vacuum circuit breaker 3phase 4poles 400/415V MCCB Moulded Case Circuit Breaker 400A

3phase 4poles 400/415V MCCB Moulded Case Circuit Breaker 400A

Purchase Qty.:
300-499 500+
FOB Unit Price: US $35 US $34
Purchase Qty. (Pieces) FOB Unit Price
300-499 US $35
500+ US $34
Get Latest Price
Port: Ningbo, China
Production Capacity: 10000
Payment Terms: L/C, T/T, D/P, Western Union, Paypal

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Basic Info
  • Model NO.: stm1-400
  • Operation: Electric Type
  • Arc-extinguishing Medium: Air
  • Structure: MCCB
  • Type: Circuit Breaker
  • Certification: ISO9001-2000, CE, CB, CCC
  • Transport Package: in Wooden Case
  • Origin: Yueqing City
  • Breaking Capacity: Low Voltage Circuit Breakers
  • Speed: High-Speed Circuit Breaker
  • Installation: Fixed
  • Poles Number: 3
  • Function: Overcurrent Protection
  • Trademark: Shentong
  • Specification: MCCB
  • 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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