MCB Accessories

MCB Accessories


Shihlin Electric MCB Accessories Accessories
Shihlin Electric MCB Accessories Accessories

Alarm Switch, Axuiliary Contact, Shunt Trip, Under Voltage Trip, Over Voltage Trip


  • Tool-free, left-mounted on the MCBs.
  • Maximum three (3) accessories can be installed on one MCB.
  • Maximum two (2) auxiliary switch (AX) can be installed for one MCB.


  • BHK1: Alarm Switch (AL) - 1NO 1NC // 230V 6A, 440V 3A
  • BHK2: Auxiliary Contact (AX) - 1NO 1NC // 230V 6A, 440V 3A
  • BHK3: Shunt Trip (SHT) - 1NO 1NC // 230V 6A, 440V 3A // AC12V/24~48V/230~415V, DC12V/12~48V/110~130V
  • BHK4: Under Voltage Trip (UVT) - 1NO 1NC // 230V 6A, 440V 3A // AC220~240V, DC48V
  • BHK5: Over Voltage Trip (OVT) - Rated voltage 230V // 15mA // over voltage range 280V +-5% // trip time 0.25ms
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Over 60 Years of MCB Accessories | Electrical Equipment Manufacturing and Supply | Shihlin Electric

Based in Taiwan, Shihlin Electric & Engineering Corp. is one of the leading MCB Accessories | electrical system and electrical equipment suppliers since 1955.

With the large distribution network, including Taiwan, North America and China, Shihlin Electric's electrical distribution system is well-recognized internationally.

From circuit breaker, magnetic contactor to automatic transfer switch, Shihlin Electric's low voltage power distribution system is innovative and continuously gaining visibility from worldwide buyers.

Shihlin Electric has been offering advanced technology in heavy electrical systems, electrical equipment, machinery and automation for a long time, both with skillful technology and 60 years of power distribution experience, Shihlin Electric ensures each customer's needs are met.

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