Type D Single Pole 6kA - System pro M Type D characteristic offers short circuit response (but greater than Type C) of 10-13 x normal rated current, making it ideal for circuits with higher inrush currents such as motor control and fluorescent lighting installations in industrial buildings where nuisance tripping might occur if a faster type was used. DIN rail mounting Complies with BS EN 60898 Operating temperature range of -25°C to +55°C Standard 17.5mm width Max. operating voltage: 440Vac, 60Vdc Note The Classic & System pro M product cannot be intermixed and do not share common accessories. System pro M products can only be fitted to new style Protecta distribution boards,see typically stock no. 539-1553. Standards BS EN 60898 ABB System Pro M Single & Double Pole MCB's Note The Classic & System pro M product cannot be intermixed and do not share common accessories. System pro M products can only be fitted to new style Protecta distribution boards,see typically stock no. 539-1553.