The ABB T5N 400 MCCB is a high-performance Moulded Case Circuit Breaker designed for efficient protection of electrical systems against overloads and short circuits. It features a robust 3-pole design and is equipped with the PR221DS-LS/I trip unit, ensuring reliable protection with long-time, short-time, and instantaneous functions. Rated at 320A and capable of interrupting fault currents up to 36kA at 415V AC, this MCCB is ideal for industrial and commercial power distribution systems.

Key Features

? Model: T5N 400
? Rated Current (In): 320A
? Frame Size: 400A
? Trip Unit: PR221DS-LS/I
 • L (Long-time): Overload protection
 • S (Short-time): Short circuit protection
 • I (Instantaneous): High-level short circuit protection
? Number of Poles: 3P (Three Pole)
? Mounting Type: Fixed-Fixed (F F)
? Breaking Capacity: 36kA at 415V AC
? Standard Compliance: IEC 60947-2
? Operating Voltage Range: 220–690V AC
? Compact Size: Space-saving design for panel installations
? Applications: Industrial, commercial, infrastructure, and utility systems