Mersen plug fuses are intended for industrial and residential applications. Non time-delay fuses are available for receptacle and lighting circuits and time-delay fuses for motor loads. For Canadian requirements, a type ",P", fuse is used for non-motor loads and Type ",D", for electrical heating and cyclical load circuits. Both fuses have low melting-point temperature elements. Type ",S", plug fuses are time-delay and tamper resistant. 1500 Volts 30 Amps SAG series.