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PV combiner box

MCB 1/2/4 phase Miniature Circuit Breaker

Technical Parameters

Miniature Circuit Breaker
Rated Current
Number Of Poles
Rated Voltage

Product Features
MCB has excellent breaking ability; Dual wiring function of wires and busbars; Energy storage operation, fast closure, long service life; Convenient installation and disassembly; Contact on/off indication for higher safety; Green, environmentally friendly, and energy-saving.

Technical parameter items Parameter value
Rated voltage
125V/250V DC(1P)、250V/500V DC(2P)、500V/1000V DC(4P)
Rated current
Rated insulation voltage
Rated impulse withstand voltage
number of poles
Instantaneous release type
Rated ultimate short-circuit breaking capacity 6kA(1P 250V/2P 500V/4P 1000V)
10kA(1P 125V/2P 250V/4P 500V)
Mechanical and electrical life
Mechanical life 20000 times, electrical life 1500 times
Tightening torque 2.0Nm
class of pollution Level 2
Protection level
Installation Category Class II and III



Q1:.What is working time?
A:08:30-17:00 (GMT+8 Beijing), from Monday to Saturday.
24 Hours customerservice
For any query or problem , please contact us :
Moble ( 0086-13356127116)

Q2: Will my drawing be safe after you get it?
A:Yes, we will not release your design to third party unless with your permission. And we can sign the NDA before you send the drawing.

Q3: What is the MOQ?
A: Usually we don't set MOQ, but the more, the cheaper. Besides, we are happy to make prototype or sample for clients to ensure quality standard.

Q4:Whether some samples can be provided?
A: Yes, We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.

Q5: What is your terms of payment?
A: T/T 50% as deposit, and 50% before delivery. We'll show you the photos of the products and packages before you pay the balance.

Q6: How about your delivery time?
A: Generally, it will take 5-7 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.