Description

The MS165-54 manual motor starter is a high-performance circuit breaker engineered for dependable motor protection and manual operation. Suitable for motors up to 45 kW (400 V) / 80 A, it ensures safe switching and full protection from overloads and phase failures. Its compact 55 mm design includes a fault indication window for quick diagnostics, along with built-in disconnect and temperature compensation for stable performance. The trip-free mechanism and lockable handle make it ideal for industrial safety and control systems. For fully integrated installations, use it with our industrial panel fabrication services to optimize protection and efficiency.

Key Specifications – Circuit Breaker MS165-54

• Rated Motor Power: Up to 45 kW (400 V)

• Rated Operational Current: Up to 80 A

• Trip Class: 10

• Width: 55 mm

• Protection: Overload, short-circuit, and phase failure

• Fault Indication Window: Yes

• Operating Voltage: 400 V

• Lockable Rotary Handle: Yes

• Application: Three-phase and single-phase motors

Highlights

• Combines motor switching and circuit protection in one compact design

• Clear visual fault indication for quick troubleshooting

• Temperature-compensated and trip-free operation for reliability

• Lockable rotary handle enhances safety and prevents tampering

• Compatible with MS116 and MS132 accessories for flexible panel design

Typical Uses

• Industrial automation and motor control centers

• Pumps, compressors, and fans

• HVAC and process control systems

• Heavy-duty machinery and conveyor applications

Installation & Support

The MS165-54 offers quick DIN-rail or panel mounting for simple installation.

• Compatible with ABB auxiliary contacts, undervoltage releases, and shunt trips

• Delivered with wiring diagrams and installation documentation

• Supported by local ABB service centers with spare parts availability