TAIXI Solar PV DC Isolator MCB Circuit Breaker 1000V 1500V Photovoltaic Switch

TAIXI Solar PV Isolator MCB Voltage and Current Specifications

This photovoltaic switch product line spans 1000V and 1500V DC rated models with individual pole current ratings in 2A, 10A, 15A, 32A, 40A, and 63A configurations, allowing precise matching to string current and combiner box ampacity requirements. The isolator function enables rapid DC load interruption without requiring external mechanical contactors, a key advantage in photovoltaic systems where string-level protection must isolate faulted circuits instantly. TAIXI engineered these breakers with arc-suppression geometry optimized for DC photovoltaic loads, where arc duration and extinction behavior differ fundamentally from AC applications. Single-pole and multi-pole switching options support both individual string isolation and array-wide DC disconnect scenarios common in utility-scale installations. The Solar PV DC Isolator meets UL 4185 and IEC 60947-2 requirements specific to photovoltaic DC applications and combines MCB thermal-magnetic trip characteristics with isolator-rated contacts rated for 1000V 1500V DC service.