MCCB Shunt Trip, 400V | Onesto KCM1

The Onesto KCM1 Shunt Trip is a 400V remote-tripping accessory that fits onto a KCM1 MCCB, allowing the breaker to be opened electrically from a remote switch, fire alarm system, emergency stop circuit or protection relay. It is suitable for electricians, panel builders and control system integrators who need remote or automatic disconnection of an MCCB. Available sized to match the 100S, 225S, 400S, 630S, 800S or 1250S KCM1 MCCB frame, fitted to either the left or right mounting position.

• Application: Remote or automatic tripping of an MCCB from a switch, relay or protection system
• Key specification: 400V shunt trip coil
• Compatibility: Select the size matching your installed MCCB frame
• Mounting position: Available for left or right-side fitting
• Installation benefit: Two mounting positions allow a second accessory (e.g. auxiliary contact) to be fitted alongside on the same breaker

Key Features

• Trips the breaker open on command from a remote 400V signal
• Fits directly onto the matching Onesto KCM1 MCCB frame without modification
• Left and right mounting positions let you combine a shunt trip with an auxiliary contact or under-voltage release on the same breaker

Typical Applications

• Fire alarm interlocking (emergency electrical shutdown)
• Emergency stop and safety circuits
• Remote or automatic disconnection from a protection relay or BMS
• Generator and changeover panel control

Technical Specifications

What's Included

• 1 x Shunt Trip module (sized and sided as selected)

Please note: The MCCB itself is not included and must be purchased separately.

Installation & Compatibility Notes

• Confirm the frame size of your installed MCCB and the 400V coil voltage before ordering.
• Confirm which mounting position (left or right) is free on your breaker, especially if another accessory is already fitted.
• Installation, including any fire alarm or safety interlock wiring, must be carried out by a suitably qualified electrician in accordance with local electrical regulations.

Warranty & Support

This product is supplied with the applicable manufacturer or supplier warranty, subject to correct installation, correct application, and warranty terms.

Zisabo supplies quality plumbing, pump, filtration and electrical products with practical support to help customers choose the correct item for their application. If you are unsure whether this product is suitable, contact us before ordering and our team will assist where possible.

Need help choosing? If you are unsure which frame size or mounting position is correct for your MCCB, contact Zisabo with your breaker model details and we will assist where possible.