Time Mark’s Smart Socket is the first socket which will allow monitoring of voltages up to 635 VAC with a socket-mounted Time Mark phase loss relay. The appropriate relay will allow monitoring for phase loss, phase reversal, low voltage and high voltage conditions. A key safety feature of the Smart Socket is it will not allow the voltage potential at the pin connections to rise to the full input voltage when the relay is removed. Two versions for the Smart Socket are available: one for 480 VAC and one for 575 VAC applications. The Smart Socket is designed to be used only with the Models B246, 253, 257B and 258B. Each of these relays is covered by Time Mark’s exclusive 5-Year Unconditional Warranty (Note: This product was previously designated as Model 98A544).