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Place of Origin:Zhejiang, China
Brand Name:TENGEN
Model Number:TGB3
Poles Number:3
Product name:320v dc circuit breaker mcb
Rated voltage:230~400v
Rated current In (A):2, 4, 6, 10, 16, 20, 25, 32, 40, 50, 63
Rated voltage Un (VAC):230/400
Rated frequency (Hz):50/60
Operational voltage (VAC):Min. 24 Max. 250/440
Rated insulation voltage (VAC):500
Rated switching capacity Icn (kA):Ics=Icn=6 or 10kA

Thermal operating limit:(1.13-1.45) x In

Supply Ability

10000 Piece/Pieces per Month 320v dc circuit breaker mcb

Packaging & Delivery

Standard package or according to customer's requirements
Lead Time:Shipped in 0 days after payment


TGB3  is a newly designed MCB with innovations and developments allow the users to reduce material costs and installation effort. It is applied in redisdential or non-residential buildings for short circuit and overload protection.

Technical Data




EN / IEC60898-1



Rated current In (A)

2, 4, 6, 10, 16, 20, 25, 32, 40, 50, 63

Rated voltage Un (VAC)


Rated frequency (Hz)


Operational voltage (VAC)

Min. 24 Max. 250/440

Rated insulation voltage (VAC)


Rated switching capacity Icn (kA)

Ics=Icn=6 or 10kA

Type of trip

Thermal and magnetic release

Thermal operating limit

(1.13-1.45) x In

Magnetic operating

B:(3-5) x In
C:(5-10) x In
D:(10-20) x In

Electrical life (times)


Mechanical life (times)



Improved mechanical and bimetallic system provides more precise tripping
The materials of core components are also improvided which makes the device more reliable and durable
Cost-effectiv, small size and weight, easy installation and wiring, high and durable performance
New flame retardant casing provides good fire,heat,weather and impact resistance
Both terminal wiring and busbar wiring are available
Selectable wiring capacities:solid and stranded 0.75-35mm2, stranded with end sleeve:0.75-25mm2

Tengen Group

Co., Ltd. is one of the largest scale enterprises of industrial equipment. Our general headquarters lies in "China Electric Appliance Capital", Liushi, Wenzhou. We have successively won honorary titles such as national large-scale enterprise, national level enterprise, China's electric top 100 enterprise, China mechanical top 100 enterprise, and China's top 100 manufacturer.The product quality of Tengen Group has been strictly controlled in each working procedure, and many kinds of internationalization standard quality guaranteed systems can be highly effective under our company's strict monitoring.

Tengen, Focus On China Energy
TENGEN BUILDING, Liushi Town, Wenzhou, Zhejiang Province, China
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