ABB MS325-6.3 Circuit Breaker

Description

The ABB MS325-6.3 is a manual motor starter and circuit breaker designed for reliable protection of motors and equipment from overloads, short circuits, and phase failures. With a current range of 4.0 to 6.3 A, this 3-pole device provides adjustable thermal and fixed magnetic trip functionality for tailored protection. The MS325 series supports quick installation on DIN rails and features front-facing terminals and toggles for easy access. Engineered for industrial automation and machine control applications, it meets international standards including IEC/EN 60947-4-1.

Key Features

• Current Rating: Adjustable from 4.0 to 6.3 A

• Trip Type: Thermal-magnetic (adjustable thermal, fixed magnetic)

• Breaking Capacity: Up to 100 kA at 400 V (with backup fuse)

• Poles: 3-pole design for 3-phase motors

• Motor Rating: Up to 3 kW (at 400 V AC)

• Mounting: 35 mm DIN rail

• Control: Manual ON/OFF switch with clear status indicator

• Standards: IEC/EN 60947-4-1, CE marked, UL listed

• Protection: Phase loss sensitivity, short circuit, overload

• Operating Temp: –25 °C to +55 °C

• Dimensions: Compact 45 mm wide housing