The RF150PD6 is a digital Motor Protection Relay manufactured by Synapse. It is a digital motor protection device designed to protect low voltage motor applications from phase loss, phase reversal, loss of phase sequence, phase locked motor failure, over temperature, current fault and reverse power. The device features advanced alarm relay outputs, modulation and protection of all major motor protection parameters, over temperature, current and phase protection, system condensing and field failure protection. It can be used for both single- and three-phase AC motors up to 150A of current.