DC ISOLATOR

About

What is a DC isolator and where does it go in a Pakistani solar install? A DC isolator is a polarised mechanical switch-disconnector that breaks photovoltaic string current under no-load — required by NEPRA between PV array and combiner box, and between combiner box and inverter for safe maintenance isolation. Built to IEC 60947-3 (switch-disconnector) + IEC 60364-7-712 (PV installations). CNC YCDSC family covers 32 A DIN-rail (combiner-box interior) and wall-mount (rooftop next to array) variants. Model Mount Rating YCDSC-100R DIN rail (inside combiner) 2P/4P 32 A 1000 V DC YCDSC-EL Wall (rooftop next to array) 2P/4P 32 A 1000 V DC IP65 For DC overcurrent + isolation combined, use DC breakers (YCB8/YCB8s) . For DC SPD protection, see DC SPD . Updated: June 10, 2026 · CNC Electric Pakistan DC Isolator + Solar PV Protection Guides (Updated June 10, 2026) DC Isolator Switch Sizing Price Guide DC Breaker 250V/500V/1000V/1500V Selection DC Fuse vs DC Breaker Solar Protection Solar Combiner Box Price + BOM Solar Combiner Box Wiring Installation Hybrid vs On-Grid vs Off-Grid Solar Inverter NEPRA 2026 Net-Metering Equipment Checklist 6mm vs 10mm Solar DC Cable Sizing Ensure maximum safety and reliable disconnection in your DC electrical systems with high-quality DC Isolator Switches from cncelectric.pk . Designed for solar systems, battery banks, and industrial DC panels , these isolators provide safe isolation, maintenance, and emergency shutdown for DC circuits. What is a DC Isolator? A DC Isolator is a safety device that disconnects the direct current (DC) supply from a circuit, inverter, or battery bank. It ensures that all DC power is safely isolated , allowing technicians to perform maintenance or repair without the risk of electric shock or equipment damage. Key Features of CNC DC Isolators: Safe Isolation: Completely disconnects DC supply from solar panels, batteries, or DC equipment. Durable & Reliable: Made with high-quality, industrial-grade materials to han