"EPN503 (Latching Relay, 1 NC + 1 NO, 48V Coil) The EPN503 is a bi-stable latching relay, designed for energy-efficient switching applications in electrical and automation systems. Category: Latching Relay Contact Configuration: 1 Normally Closed (NC) + 1 Normally Open (NO) Coil Voltage: 48V AC/DC Current Rating: 10A Operating Mechanism: Electromagnetic Latching Short Circuit Capacity: 6kA (with appropriate protection) Mounting Type: DIN Rail / Panel Mounting Application: Used in lighting control systems, energy management, and automation circuits. Reduces coil power consumption, improving energy efficiency."