Features Full active braking that is gentle enough not to harm the motor but still stops the motor very quickly. ,Built-in heatsink ,Built-in 30amp automatically resetting thermal fuse ,All wires and connectors supplied ,The MOSFET is fully protected against voltage spikes from the motor ,Advanced brake timing circuit ,Fully protected against static discharge ,The circuit draws no current when not triggered ,The trigger circuit needs considerable current to turn on preventing false firing from condensation, grease etc.