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PROJOY Dedicated DC MCB for Energy Storage System Exhibited on BePOSITIVE in Lyon

Date: 2019-02-02

France most influential and innovative green energy exhibition BePOSITIVE was held in Lyon on Feb. 13th-15th. PROJOY exhibited on invitation with its quite stable and high efficient products like AC Isolators (PEAS), DC Isolators (PEDS) and Firefighter Safety Switches (PEFS). The overseas debut of REAL Non-polarity DC Miniature Circuit Breakers (MCB) attracted many a worldwide potential partners at PROJOY booth. As reported, many overseas customers and PROJOY have agreed on intensive cooperation.




With the increase of DC applications, especially the increase of residential and distributed PV applications with energy storage, demands for DC MCB are increasing. PROJOY researched and developed the specific non-polarity DC MCB to avoid personal injury and property loss caused by polarity installation failure. It has the features of reliable arc & arc suppression, simple structure, easy installation and without considering the polarity. By changing clearance between moving contact and fixed contact, shortening electric arc jump distance, increasing arc coil, PROJOY Non-polarity DC MCB PEBS series make DC arc in either direction into arc extinguish chamber successfully to cut off the fault.




PROJOY Weatherproof Enclosure PEBS (IP66)

According to the application of Non-polarity DC MCB, PROJOY provides high voltage circuit breaker (PEBS-H) and low voltage circuit breaker (PEBS-L) to choose. For PEBS-H series, maximum rated voltage can reach to 1000VDC and rated current to 63A. And for PEBS-L series, maximum rated voltage reaches to 160VDC and rated current to 125A. These two kinds of circuit breakers are mainly integrated into hybrid inverters, off-grid inverters, separating AC coupling inverters and battery packs, or installed between DC distribution electric wires/batteries and power controllers. PEBS-H and PEBS-L can also be mounted into a switch box with enclosure protection class IP66 to realize external use (Weatherproof Enclosure PEBS-L or Weatherproof Enclosure PEBS-H). Besides their excellent non-polarity performance advantages, PROJOY MCB series have perfect protection functions of short circuit & overload and high short circuit breaking capacity. With its scientific mechanism of arc suppression and current limiting, PROJOY DC MCB is able to realize quick switch-off of fault current on DC side to ensure the reliable operation of DC system and perfectly match PV, energy storage and other DC applications.

PROJOY DC miniature circuit breakers have passed TUV and CE authentication successfully, making PROJOY DC MCB the only in China certified for non-polarity. This series are now in hot sale from home and abroad.