Key Features Circuit Breaker Type: 4‑pole molded case circuit breaker (MCCB) with fixed thermal‑magnetic trip unit. Protection Function: Combines thermal overload protection with instantaneous magnetic short‑circuit protection. Compact Design: Space‑efficient size suitable for distribution boards and control panels. Poles: 4 poles — protects four conductors simultaneously (three phases plus neutral). Front Terminals: Front‑accessible screw/clamp connections for easy wiring. Electrical Ratings Rated Current (In): 160 A — continuous current capacity of the main circuit. Rated Operational Voltage: Up to 550 V AC for AC power systems. Up to 250 V DC for DC systems. Rated Insulation Voltage (Ui): 690 V — insulation rating suitable for low‑voltage distribution systems. Impulse Withstand Voltage (Uimp): 6 kV, robust against transient voltage spikes. Rated Ultimate Short‑Circuit Breaking Capacity (Icu): Up to 25 kA at 240 V AC. Up to 18 kA at 380–415 V AC. Lower but substantial breaking capacity at higher voltages (e.g., ~15 kA at 440–480 V AC). DC interrupt capacity at 250 V is also provided with two poles in series. Rated Service Short‑Circuit Breaking Capacity (Ics): Typical service‑level breaking capabilities at common system voltages. Rated Uninterrupted Current (Iu): 250 A — applicable conductor thermal rating for the breaker frame. Mechanical & Durability Electrical Durability: Designed for approximately 4,000 load switching cycles. Mechanical Durability: Designed for around 10,000 mechanical operations. Opening Time: Fast internal tripping (e.g., ~15 ms under specified conditions). Power Loss: Low per‑pole power loss (e.g., ~9 W at rated conditions). Physical & Installation Configuration: Compact MCCB in standard industrial form factor. Mounting: Panel or switchboard fixed mounting with front‑terminal access. Weight & Footprint: Moderate weight and compact footprint ideal for modular distribution panels. Typical Applications Protection of three‑phase systems including motor feeders, distribution circuits, and equipment panels. Main and branch‑circuit protection in industrial plants and commercial installations. Control panel overcurrent protection for automation equipment.