INNOVATION

TOSUN MCB
The Real MCB

TOSUN circuit breaker will give you and your equipment the highest level of protection, ensure 100% absolute safety.

TOSUN MINIATURE CIRCUIT BREAKER

TSB3-63 miniature circuit breaker is used for overload and short-circuit protection in lighting distribution system or motor distribution system.

The product is neoteric in structure, light in weight, reliable and excellent in performance.

It has high breaking capacity and can trip quickly. also it adopts high fire-resistant and shockproof plastics. The products comply with IEC60898 and have been certified by"CB", "TUV" and "CE"

Model
Number of Poles	1P, 1P+N, 2P, 3P, 3P+N, 4P
Rated Current (A)	6, 10, 16, 20,25, 32, 40,50, 63
Breaking Capacity	6000A
Circumstance Temperature	-5℃ ~ +40℃
Electrical Life (times)	≥ 6000

TOSUN Miniature Circuit Breaker

Test, research, develop, and improve the circuit breakers to make them better, safer.

Time Delay Tripping Test Lab
Breaking Capacity Test Lab
Breaking Capacity Test Lab
Instantaneous Time Tripping Test Machine
High Voltage Test Machine
High Voltage Test Machine

TOSUN MCB VS Different Brands MCB

4.5KA Breaking Capacity Test

The higher breaking capacity, the safer product.

We test the breaking capacity of TOSUN circuit breakers and multiple brand circuit breakers.

After test, TOSUN circuit breaker, the moving contact is basically intact, and it can be in contact with the static wiring board. The overtravel of the moving contact is also normal.