Plastic-Enclosed Circuit Breaker

qkm7l 250c

QKM7L-250C/3N

Residual current circuit breakers with automatic reclosing for 400V, 50Hz low-voltage grids (50A–630A, 50mA–800mA residual current). Integrates overload, short-circuit, residual current, over/undervoltage, phase loss, neutral loss, and lightning protection, plus reclosing. Also available as prepayment meter external breakers. Compliant with GB/T 14048.2, GB/T 32902, Q/GDW 1365.

MCCB-qkm7 800m

QKM7-800M

Compact, high-breaking-capacity circuit breakers (25A–800A, 400V/690V) for overload, short-circuit, and undervoltage protection. Suitable for AC 50/60Hz systems, with vertical/horizontal installation and modular accessories. Compliant with GB/T 14048.2.
MCCB-qkm7 630l

QKM7-630L

Compact, high-breaking-capacity circuit breakers (25A–800A, 400V/690V) for overload, short-circuit, and undervoltage protection. Suitable for AC 50/60Hz systems, with vertical/horizontal installation and modular accessories. Compliant with GB/T 14048.2.
qkm7 400l

QKM7-400L

Compact, high-breaking-capacity circuit breakers (25A–800A, 400V/690V) for overload, short-circuit, and undervoltage protection. Suitable for AC 50/60Hz systems, with vertical/horizontal installation and modular accessories. Compliant with GB/T 14048.2.

qkm7 250l

QKM7-250L

Compact, high-breaking-capacity circuit breakers (25A–800A, 400V/690V) for overload, short-circuit, and undervoltage protection. Suitable for AC 50/60Hz systems, with vertical/horizontal installation and modular accessories. Compliant with GB/T 14048.2.
qkm7 125l

QKM7-125L

Compact, high-breaking-capacity circuit breakers (25A–800A, 400V/690V) for overload, short-circuit, and undervoltage protection. Suitable for AC 50/60Hz systems, with vertical/horizontal installation and modular accessories. Compliant with GB/T 14048.2.

qkm7l 630e

QKM7L-630E

Engineered for low-voltage distributed PV systems, this all-in-one breaker integrates an electric operating mechanism, intelligent controller, and MCCB functions. It delivers comprehensive protection against overcurrent, short circuit, phase loss, and voltage anomalies (over/under/zero voltage), ensuring safe and reliable grid integration. Complies with GB/T 14048.2 and Q/GDW 1972-2013.

qkm7l 400e

QKM7L-400E

Engineered for low-voltage distributed PV systems, this all-in-one breaker integrates an electric operating mechanism, intelligent controller, and MCCB functions. It delivers comprehensive protection against overcurrent, short circuit, phase loss, and voltage anomalies (over/under/zero voltage), ensuring safe and reliable grid integration. Complies with GB/T 14048.2 and Q/GDW 1972-2013.

QKM7L-400

QKM7L-400C

Engineered for low-voltage distributed PV systems, this all-in-one breaker integrates an electric operating mechanism, intelligent controller, and MCCB functions. It delivers comprehensive protection against overcurrent, short circuit, phase loss, and voltage anomalies (over/under/zero voltage), ensuring safe and reliable grid integration. Complies with GB/T 14048.2 and Q/GDW 1972-2013.

qkm7l 250e 3n

QKM7L-250E 3N

Engineered for low-voltage distributed PV systems, this all-in-one breaker integrates an electric operating mechanism, intelligent controller, and MCCB functions. It delivers comprehensive protection against overcurrent, short circuit, phase loss, and voltage anomalies (over/under/zero voltage), ensuring safe and reliable grid integration. Complies with GB/T 14048.2 and Q/GDW 1972-2013.

QKM7L-250

QKM7L-250C

Engineered for low-voltage distributed PV systems, this all-in-one breaker integrates an electric operating mechanism, intelligent controller, and MCCB functions. It delivers comprehensive protection against overcurrent, short circuit, phase loss, and voltage anomalies (over/under/zero voltage), ensuring safe and reliable grid integration. Complies with GB/T 14048.2 and Q/GDW 1972-2013.

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