Product details
2p 550v DC mini circuit breaker
Product description
SDB-63 2p 550V DC circuit breakers provide overcurrent protection for appliances or electrical equipment that already provide or do not require branch circuit protection. The device is designed for direct current (DC) control circuit applications.
Product advantages
Flame retardant plastic material insulation shell
High-quality copper conductors, coils, long-term and high-efficiency protection circuits
High-efficiency arc extinguishing system structure to prevent burning
Zinc-plated terminal blocks Silver alloy contacts Corrosion resistant Very high electrical conductivity
Specification
Place of Original |
Zhejiang China |
Pole |
2P |
Rated operating voltage |
550V |
Frame Degree Rated Current(A) |
63A |
Pollution level |
3 |
Installation category |
Class III |
Run Breaking Capacity Ics (%Icu) |
75% |
Curve type |
C |
Trip Type |
Thermal-magnetic |
Installation |
Din standard rail |
Rated Insulation Voltage Ui (VDC) |
1200VDC |
Ultimate Breaking Capacity Icu (KA) |
6 |
Tips:
What is DC MCB?
The thermal protection in the DC MCB prevents overload current, which is only slightly larger than the normal operating current. When a high fault current occurs, the magnetic protection will trip the DC MCB, and the response is always instantaneous.
DC MCB can be used to protect a single load that uses DC power, and it can also be used to protect main circuits such as inverters and photovoltaic battery packs.
The arc extinguishing point of DC MCB is higher.
In DC, the voltage is continuous and the arc is constant, which is more difficult to disconnect than AC MCB. The DC arc will not self-extinguish. This means they can only be extinguished by cooling or mechanical interruption. Therefore, DC MCBs must include other arc extinguishing measures: they usually have mechanisms to extend and dissipate the arc to simplify interruption.
QA:
Q:May I get a sample to test the quality before the order ?
A:yes,We think the sample order is the best way to test the quality and we offer free sample service
Q:When can I receive quotation and detail information after send the enquiry?
A:Reply will be sent in 24hours
Q:How's your delivery?
A:For sample order within 7days.And for bulk order, we promise in 15-20days.
Q:How's the warranty period for your DC circuit breaker?
A:We offer two year warranty for our customer.
Q:What’s the payment method you accept?
A:We accept T/T,Bank,Paypal,Western Union,L/C and so son
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