Miniature Circuit Breaker 1A-125A, 10kA, D Curve, 1-4 Pole | Onesto KC10-P DIN Rail MCB

The Onesto KC10-P is a 10kA, D curve miniature circuit breaker (MCB) for protecting circuits with higher inrush or fault levels, such as motors, transformers and larger sub-boards. It suits electricians, panel builders and maintenance teams on commercial and light industrial installations, and is available from 1A to 125A in single, double, triple and four pole versions.

• Application: Overload and short-circuit protection on DIN rail boards
• Breaking capacity: 10kA
• Trip curve: D curve, suited to loads with high inrush current
• Current range: 1A to 63A, plus 80A, 100A and 125A
• Poles: 1, 2, 3 and 4 pole versions

Key Features

• Higher 10kA breaking capacity for boards with a higher prospective fault level
• D curve tolerates the starting current of motors and transformers without nuisance tripping
• Full range from 1A to 125A in one listing
• Standard DIN rail mounting
• Auxiliary contacts, shunt trips and voltage releases are available separately

Typical Applications

• Motor and pump circuit protection
• Transformer and welding equipment circuits
• Sub-board and main board protection
• Panel building and board upgrades
• Commercial and light industrial use

Technical Specifications

What’s Included

• 1 x Onesto 10kA miniature circuit breaker 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

• Select the breaker rating to suit the cable size and the load it protects.
• D curve breakers trip at a higher multiple of rated current than C curve. Confirm D curve is correct for the load and that the cable and circuit are protected at that trip level.
• Check the pole count against your supply and whether the neutral must be switched.
• Confirm your board accepts standard DIN rail breakers before ordering.
• 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 the load type, required current rating, number of poles and the fault level at your board, and we will assist where possible.