C4/63R-EHN1-115 IMO Red/Yellow External Handle Extension Shaft 115mm

Why Choose the IMO C4/63R-EHN1-115 Emergency Stop Door-Coupling Mechanism?

The IMO C4/63R-EHN1-115 is a robust red/yellow emergency stop door-coupling rotary mechanism designed for external operation of IMO C4/63R motor circuit breakers installed inside electrical enclosures. It provides a clearly identifiable emergency switching interface on the front of a cabinet or control-panel door while allowing the motor circuit breaker itself to remain safely enclosed.

As part of the IMO C4 motor circuit breaker accessory range, the C4/63R-EHN1-115 incorporates a door-locking mechanism that helps prevent accidental opening of the cubicle door while the circuit breaker is in the ON position. The OFF position can be secured with up to three padlocks, supporting controlled electrical isolation during servicing and maintenance.

The mechanism features a distinctive red/yellow external handle, a 115 mm extension shaft and an IP65 protection rating. Designed specifically for the C4/63R range, it provides an operating dimension range of 194–255 mm, making it suitable for industrial motor control panels, machinery and automation systems.

Key Advantages

• Purpose-designed emergency stop door-coupling mechanism for IMO C4/63R motor circuit breakers.
• Highly visible red/yellow external rotary handle.
• 115 mm extension shaft for enclosure-mounted operation.
• IP65 protection rating for demanding industrial panel applications.
• Door-locking mechanism helps prevent accidental enclosure opening while the circuit breaker is ON.
• OFF position can be secured with up to three padlocks for controlled isolation.

Key Features

• IMO C4 motor circuit breaker accessory.
• Emergency stop door-coupling rotary mechanism.
• Red/yellow handle for high-visibility operation.
• 115 mm extension shaft.
• Designed specifically for IMO C4/63R motor circuit breakers.
• IP65 rated external handle arrangement.
• Door-locking function in the ON position.
• OFF-position locking facility for up to three padlocks.
• 194–255 mm operating dimension range.

High-Visibility External Motor Isolation

Emergency stop door-coupling mechanisms allow an internally mounted motor circuit breaker to be operated from outside an electrical enclosure. The external rotary handle is mechanically connected to the circuit breaker through an extension shaft, providing convenient operation while the protective switching device remains inside the cabinet.

The red/yellow handle of the IMO C4/63R-EHN1-115 provides clear visual identification, while the door-locking function helps prevent accidental access when the circuit breaker is switched ON. When switched to OFF, the mechanism can be secured using up to three padlocks, providing a practical solution for machinery isolation and industrial maintenance procedures.

Typical Applications

• Industrial motor control panels.
• Machinery emergency isolation controls.
• Electrical control cabinets and enclosures.
• Motor starter assemblies.
• Pump, fan and conveyor control systems.
• Manufacturing and automation equipment.
• OEM machinery and electrical panel building.