Relay

A relay comprising:

• a solenoid including a spool, a coil wound on an outer periphery of the spool, and a pair of power connecting terminals provided at one end of a spool for providing a current to the spool;
• a hermetically sealed chamber mounted at a lower end thereof with a cylinder into which a center portion of the spool is inserted, mounted at an upper end thereof with a pair of stationary terminals each provided at a stationary contact point and filled therein with insulating gas to be coupled at an upper portion of the spool;
• an insulation member mounted at an upper end of the chamber for insulating the chamber and the stationary terminals;
• a movable unit including a shaft inserted into the cylinder to move toward an inner upper surface of the chamber when the solenoid is operated, a conductive movable terminal vertically coupled to an upper end of the shaft, and a pair of movable contact points provided at an upper end of the movable terminal and electrically conducted by being selectively contacted to each stationary contact point;
• a restoring spring coupled at one end thereof to a lower end of the shaft and supportively fixed at the other end to a lower surface of the cylinder to pull the shaft toward the lower surface of the cylinder;
• and an insulated sliding guide provided inside the chamber to guide the movable unit that is moved by the solenoid and the restoring spring.