PV DC Circuit Breaker

CNKA pv dc circuit breaker Introduction

The CNKA PV DC circuit breakers from China, currently in stock, are designed for overload and short circuit protection in DC systems. They are suitable for DC equipment and electrical devices with rated currents up to 63A and rated voltages of 300V, 600V, and 1000V. This product is widely utilized in various sectors such as power, postal services, transportation, mining, and industrial enterprises, and it meets the IEC60898-1 and GB140482 standards. Compared to similar products, it boasts the highest rated voltage level.

CNKA pv dc circuit breakerParameter (Specification)

CNKA pv dc circuit breaker Feature

·  1The front-top design enhances handle operation, making it more comfortable and safe.

· 2 With a mechanical life exceeding 20,000 cycles, it ensures long-term reliability.

· 3 Complies with GBT140482, IEC60947-2 standards, EU RoHS environmental requirements, and holds CCC and CE certifications.

· 4 Ideal for DC systems, particularly in communication and photovoltaic applications.

CNKA pv dc circuit breaker Details

CNKA pv dc circuit breaker Development difficulties

The development of PV DC circuit breakers encounters two primary challenges. Firstly, in DC systems, the current does not naturally cross zero, preventing the use of mature arc extinguishing technology as with AC circuit breakers. Secondly, DC systems contain numerous inductive components that store significant amounts of energy, making it more difficult to interrupt DC fault currents.

CNKA pv dc circuit breaker Dimensions and wiring