The GQS-DPDT-48D-N is a MEC relay, a dual pole double throw (DPDT) switch that comes with a48VDC operation. It is designed to switch two independent circuits between two different states, on and off. It is used to control electrical appliances, such as motor, solenoid valves, etc. It can also be used in safety applications including as a switch for circuit breakers, emergency stop pushbuttons, etc. The N suffix indicates the Standard Industrial configuration for this relay.