New Energy
This external circuit breaker is designed for prepaid energy meters, offering intelligent features including meter control with status feedback, fee control (tripping on power cutoff, auto-reclosing after payment), auto-operation (tripping on outage/over/undervoltage/phase loss, auto-reclosing on restoration), PV grid-tie support (“ON with grid, OFF without grid” logic), and comprehensive line protection (short-circuit, overload, over/undervoltage, phase loss). Compliant with GB/T 10963.1 and Q/GDW 11421-2020.
The QYB6Z-63 DC mini circuit breaker features rated voltages of 300V (1P), 600V (2P), 900V (3P), and 1200V (4P). It utilizes specialized arc-extinguishing and current-limiting systems to rapidly interrupt fault currents in DC power distribution systems, thereby protecting critical components and ensuring the reliable operation of solar photovoltaic power generation systems.
Residual current reclosing circuit breaker with enhanced PV-specific protection, dual-mode communication (HPLC/HPLC), and power quality monitoring for power IoT applications. Used to connect PV systems to low-voltage grids, with core functions including anti-islanding protection (independent of inverter), overload/short-circuit protection, harmonic analysis for power quality assessment, and precise measurement of power, voltage, current, and frequency. Compliant with GB/T 14048.2 and Q/GDW 1972.
DC MCCBs for power distribution systems, with rated working voltage DC1500V, insulation voltage 1600V, impulse withstand voltage 12kV, and rated current 63A–630A. Suitable for DC grounded, negative grounded, and neutral grounded systems, meeting PV DC combiner box environmental requirements. Supports vertical (front) or horizontal (side) mounting. Compliant with IEC 60947-1/2 and GB/T 14048.1/2.
IP65 hot-dip galvanized steel combiner box for outdoor use, accepting up to 24 PV strings. Equipped with PV-specific fuses, surge arresters, and a modular intelligent detection unit (≤4W, 0.5% accuracy) with Hall sensor zero-flux measurement. Features self-coded digital display, RS485/ZigBee communication (with lightning protection), and 1000V/1500V DC self-power (reverse connection/overcurrent/overvoltage protected). Ensures safe, reliable operation and easy maintenance.
