The MK , Single Pole, Type B MCB and it is suitable for installation in MK Sentry consumer units and two or four module enclosures. Short Circuit Breaking Capacity: 6KA Dimensions: 83x18x74mm Cable Capacity: 35mm²
Useful if needing to expand a now obsolete MK Sentry consumer unit
Arrived quickly and despite being sold as used looked the same as a new item. Nevertheless decided to test it before installation. Performed as expected when subjected to first an overload and then a short circuit test. Now installed and in daily use.