15KA Miniature Circuit Breaker PV DC Systems KNB2-63S6Z

15KA Miniature Circuit Breaker PV DC Systems KNB2-63S6Z

KNB2-63 S6Z circuit-breakers are used in communication systems and PV DC systems.KNB2-63 series Miniature Circuit Breaker is nicein appearance,reasonable in structure,sound in feature and high in breaking capacity.Installed with standard din rail,it is convenient and easyin usage.It is rated working voltage to 250/500/1000V,and rated current to 63A as protection against short-circuit.It can be used as infrequenton-and-off operation and changeover.
It complies with standard of IEC/EN60947-2.

Frame class	63A
Rated working voltage	250/500/1000V
Rated working current	1,2,3,4,6,10,13,16,20,25,32,40,50,63A
Making and breaking capacity	15000A
Poles	1,2,4P
Mechanical life	20000
Electric life	1500

Sequence	Test current l/ln	Start state	Tripping time	Expected result
1	1.05\|n	Cold state	t≤1h	Not tripping
2	1.3In	Start right after NO.1 test	t<1h	Tripping
3	8ln	Cold state	t≤0.1s	Not tripping
4	12In	Cold state	t<0.1s	Tripping

Q1: What is the maximum breaking capacity of the KNB2-63S6Z DC MCB?

A: The KORLEN KNB2-63S6Z miniature circuit breaker features a high breaking capacity of 15kA, providing ultimate short-circuit and overload protection for demanding solar PV systems.

Q2: Can this miniature circuit breaker be used in high-voltage solar PV systems?

A: Yes, the KNB2-63S6Z series is specifically engineered for PV DC systems. It supports standard solar DC voltages (such as 250V up to 1000V DC depending on the pole configuration) to ensure stable performance in renewable energy setups.

Q3: Does KORLEN offer OEM/ODM customization for the KNB2-63S6Z DC MCB?

A: As a leading China MCB manufacturer, KORLEN provides full OEM and ODM customization solutions. We can customize current ratings, packaging, and branding to meet your specific industrial or market requirements.

Q4: What international standards does this PV DC circuit breaker comply with?

A: Our KNB2-63S6Z 15kA DC MCB is manufactured under strict ISO9001 quality control and complies with major international electrical safety standards like IEC/EN 60947-2, ensuring reliable global shipping and compliance.