MCCB Vari-Depth Handle | Onesto KCM1

The Onesto KCM1 Vari-Depth Handle is an external operating handle with adjustable shaft depth, allowing a KCM1 MCCB to be operated from outside its enclosure door regardless of panel depth. It is suitable for electricians and panel builders who need door-mounted breaker operation on enclosures of varying depth. Available sized to match the 100S, 225S, 400S, 630S, 800S, or the shared 1000S/1250S KCM1 MCCB frame.

• Application: External, door-mounted operation of an enclosed MCCB
• Key specification: Adjustable-depth shaft to suit varying enclosure depths
• Compatibility: Select the size matching your installed MCCB frame
• Installation benefit: Lets the breaker be switched without opening the enclosure door

Key Features

• Adjustable shaft depth accommodates different enclosure depths without a custom order
• Fits directly onto the matching Onesto KCM1 MCCB frame
• Allows safe breaker operation with the enclosure door closed

Typical Applications

• Enclosed distribution boards requiring door-mounted breaker operation
• Panel builder installations where enclosure depth varies by project
• Industrial and commercial switchboards

Technical Specifications

What's Included

• 1 x Vari-Depth Handle with shaft (sized as selected)

Please note: The MCCB itself is not included and must be purchased separately. For a spare handle only (no shaft), see our Vari-Depth Handle – Spare Handle Only listing.

Installation & Compatibility Notes

• Confirm the frame size of your installed MCCB before ordering — the 1000S & 1250S variant fits both the 1000A and 1250A MCCB frame.
• Confirm your enclosure depth falls within the handle's adjustable shaft range before ordering.
• Installation 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 is correct for your MCCB, contact Zisabo with your breaker model details and we will assist where possible.