This guide shows you how to wire the basic functions of a PE153 Digital Timer to a representative 2-speed 240V motor. It is fairly simply but it requires an extra wire to be able to switch between a low speed circuit and the high speed circuit. If you are going to wire your own pool pump, you must first know what voltage is coming to your pump from the house circuit breaker. Also you must ensure that the electrical supply agrees with the motor's voltage, phase, and cycle and that all electrical wiring conforms to local codes and NEC regulations. If you are unsure of this voltage or are unfamiliar with electrical codes and regulations, have a professional electrician wire your pump for you or at least check your work. Failure to wire the pump correctly can cause electrical shock or can damage your pump motor and void your warranty.