SUNTREE SGL8N DC 1000V 250A 2P LOAD ISOLATION SWITCH

The SGL8N-2 series is a high-performance DC load disconnect switch specifically engineered for high-capacity solar PV and energy storage systems. Unlike standard isolators, the SGL8N is designed to safely break circuits under full load at voltages up to 1000V (and in many configurations up to 1500V). Its 2-pole, compact design features advanced magnetic blowing and dedicated arc-extinguishing chambers, making it an essential safety component for main DC cabinets and large-scale combiner boxes. Key Features Superior Arc Extinguishing: Equipped with independent arc-extinguishing chambers and magnetic blowing technology for each pole. This ensures that DC arcs are quenched rapidly, significantly increasing electrical life and safety during operation High Load-Break Capacity: Designed for the PV-1/PV-2 utilization category, meaning it can safely connect and disconnect high-current DC loads under normal and infrequent overload conditions Double Magnetic Architecture: Features a double-magnetic structure that enhances the extinguishing capability, crucial for stable performance in high-voltage 1000V DC environments Compact 2P Footprint: Optimized for space-saving within distribution boards or inverter cabinets without compromising on the high 12kV impulse withstand voltage Industrial Safety Standards: Built with VO flame-retardant materials and oversized silver-plated copper terminals for low resistance and maximum heat dissipation Product Overview & Technical Data Number of Poles – 2P Rated Operational Voltage (Ue) – 1000V DC (Standard) / 1500V DC (Max) Rated Operational Current (Ie) – 250A Rated Insulation Voltage (Ui) – 1600V DC Rated Impulse Withstand Voltage (Uimp) – 12kV Short-Circuit Making Capacity (Icm) – 15kA Short-Time Withstand Current (Icw) – 10kA / 1s Utilization Category – DC-PV1 / DC-PV2 Operating Temperature – -25°C to +70°C Mechanical Life – 10,000 Cycles (≤ 250A frame) Terminal Material – 4x20mm Silver-plated Copper