Protect your solar and DC systems with the Tomzn TOB7Z-63 4P 1000V DC Miniature Circuit Breaker in Pakistan. Furthermore this 4‑pole DC MCB delivers fast, reliable protection against overloads and short circuits in solar PV arrays, battery banks, and inverter/charge controller setups. Also rated up to 1000V DC and 63A, it mounts on standard 35 mm DIN rails for quick installation and tidy panels. Especially, Engineered for DC applications, the TOB7Z-63 uses efficient arc‑extinguishing design and tight terminals to ensure safe interruption and stable connections. Above all, the compact body, clear ON/OFF indicator, and labeled terminals make it installer‑friendly. Choose your current rating (10A–63A) to match PV string size or system requirements. Features: 1000V DC rated, 4‑pole isolation for PV systems Up to 63A options for flexible sizing High DC breaking capacity (up to 6kA) Compact DIN‑rail mount, finger‑safe terminals Clear ON/OFF indicator for quick status Specifications: Model: Tomzn TOB7Z-63 Poles & Voltage: 4P, up to 1000V DC Rated Current: 63A–63A (selectable) Breaking Capacity: up to 6kA DC Mounting/Terminals: 35 mm DIN rail, up to 25 mm² cable Uses: Solar PV string protection and array isolation Battery bank and DC busbar distribution Inverter/charge controller input/output protection Telecom and UPS DC power systems Off‑grid/RV/backup power DC circuits Package Includes: 1 x  DC Miniature Circuit Breaker