Moulded Case Isolator 100A-1000A, 3-4 Pole, 690V | Onesto KCM1

The Onesto KCM1 moulded case isolator is a high-current manual switch used to isolate main supplies and large distribution circuits for safe maintenance. It suits electricians, panel builders and industrial maintenance teams, and is available from 100A to 1000A in 3 and 4 pole versions.

• Application: Main and sub-board isolation in power distribution
• Current range: 100A to 1000A
• Poles: 3 pole and 4 pole
• Rated operating voltage: 690V (per MCE)
• Frame sizes: IS100S to IS1250S

Key Features

• Moulded case construction for high-current isolation
• Frame sizes from 100A up to 1000A (IS1250S frame)
• Three and four pole options for three-phase supplies with or without a switched neutral
• Same frame sizes as the Onesto KCM1 moulded case circuit breaker range

Typical Applications

• Main isolators on switchboards and distribution boards
• Isolation ahead of large motors and plant
• Generator and transformer isolation
• Commercial and industrial power distribution

Technical Specifications

Dimensions are as listed by MCE, in millimetres. Check the frame drawing before panel design.

What’s Included

• 1 x moulded case isolator in the current rating and pole configuration selected

Please note: Installation fittings, electrical protection, cartridges, control boxes, cables, unions, brackets, or accessories are not included unless specifically listed above.

Installation & Compatibility Notes

• An isolator is a switch only. It does not protect against overload or short circuit, so protect the circuit with a suitably rated breaker or fuse.
• Select a rating at or above the full-load current of the supply or equipment being isolated.
• Check the pole count against your supply and whether the neutral must also be isolated.
• Check the frame dimensions above against the space available in your panel.
• Installation should be carried out by a suitably qualified person, with a Certificate of Compliance issued where required.

Warranty & Support

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.

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

Need help choosing? If you are unsure whether this product is suitable for your system, contact Zisabo with your supply type, load current and number of poles required, and we will assist where possible.