MK Sentry - Mk 3 - 5903s - 3a Type B Single Pole MCB Used
MK Sentry 5903s - 3a Type B Single Pole MCB. MK Part Code: 5903s. MK's third generation MCB. From the Sentry range. Conforms with BS EN 60898: 1991. Verbal instruction is not accepted. Used but in good, fully working condition.