MK Sentry RCBO 40A H7937S Type B, single pole, single module format. Features of MK H7937S A one module MK Sentry RCBO combines the capabilities of a Type B MCB and an RCD, providing residual current and earth leakage protection alongside overcurrent protection, all within one unit.
eBay
MK Sentry 7937s - 40A. 30mA Type B Single Pole RCBO 6KA. New old stock
eBay
2 x 63amp RCD. 2 x 16amp MCB. 1 x 40amp MCB.
eBay
1 x 63amp RCD. 1 x 80amp RCD. 2 x 16amp MCB. 1 x 40amp MCB.
eBay