C4/63R-EHN1-315 IMO Red/Yellow External Handle Extension Shaft 315mm

Why Choose the IMO C4/63R-EHN1-315 Emergency Stop Door-Coupling Mechanism?

The IMO C4/63R-EHN1-315 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 highly visible operating handle 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-EHN1-315 incorporates a door-locking device 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, providing a practical solution for controlled electrical isolation during servicing and maintenance.

The mechanism features a distinctive red/yellow external handle, a long 315 mm extension shaft and an IP65 protection rating. Designed specifically for the C4/63R range, it provides an operating dimension A range of 194–455 mm, making it particularly suitable for deeper industrial control cabinets and machinery enclosures.

Key Advantages

• Purpose-designed emergency stop door-coupling mechanism for IMO C4/63R motor circuit breakers.
• Highly visible red/yellow external rotary handle.
• Long 315 mm extension shaft suitable for deeper electrical enclosures.
• IP65 protection rating for demanding industrial panel applications.
• Door-locking device 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 external handle for high-visibility operation.
• 315 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.
• 194–455 mm operating dimension A range.

High-Visibility External Motor Isolation

Door-coupling rotary mechanisms allow motor circuit breakers mounted inside electrical cabinets to be operated from outside the enclosure. The external handle is mechanically connected to the circuit breaker through an extension shaft, providing convenient switching while the protective device remains inside the panel.

The IMO C4/63R-EHN1-315 combines external operation with a highly visible red/yellow handle, door interlocking and padlocking capability. Its 315 mm extension shaft and 194–455 mm operating range make it particularly useful where the motor circuit breaker is mounted deeper within an enclosure.

Typical Applications

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