MK Sentry Mk 3 - 5920s - 20a Type B Single Pole MCB Used
MK Part Code: 5920s. These are the third generation of MK Sentry circuit protection. From the Sentry range. 20A - 230V - Type B Curve - Single Pole. Conforms with British Standard BS EN 60898: 1991. Verbal instruction is not accepted.