The WATSN250 is a 250A molded case circuit breaker designed for overcurrent and short-circuit protection in low-voltage power distribution systems. With its fixed-mount design and electronic trip unit, it provides reliable and adjustable protection for main circuits and large loads in industrial, commercial, and infrastructure applications.
Specifications
Parameter Specification
Model WATSN250
Frame Size 250A
Rated Current (In) 250 A (adjustable)
Poles Typically 3P or 4P (specify when ordering)
Rated Operational Voltage (Ue) 400 V AC 50/60 Hz
Breaking Capacity (Icu) 36 kA at 400 V AC
Trip Unit Electronic Micrologic 2.0/5.0/6.0
Protection Functions Long‑time, short‑time, instantaneous, ground fault
Mounting Fixed type
Connection Capacity 70‑185 mm² (copper cable)
Ambient Temperature Range –25 °C to +70 °C
Mechanical Life 8,500 operations
Standards IEC 60947‑2, GB 14048.2
Communication Optional communication module (Micrologic E/F/H)
Primary Applications
Main distribution switchboards
Industrial power supply and motor control centers
Large commercial buildings and data centers
Generator and transformer protection