The Tornatech Model OPD electric fire pump disconnecting device provides a UL listed means of disconnecting and consequently isolating the fire pump controller from incoming power. It also assures complete overcurrent protection coordination upstream of the fire pump controller. The selection of the overcurrent protective device is based on the voltage and horsepower of the electric fire pump motor and the requirements of NFPA70 (NEC) 695.4(B)(2)(a)(2), NFPA20 9.2.3.4.1 and as a recommended and acceptable alternative for CEC 32-206 (4) and (5).