Over Voltage Single Phase Voltage Monitoring Relay SVR220 220V 440V Voltage Control Relay

Over Voltage Relay SVR-220 220V 440V Voltage Control Relay Single Phase Protector

♦ Features

-- Single-phase monitoring of over- and undervoltage

-- Powered by the measuring circuit

-- 1 C/O contacts

-- 3 LEDs for status indication

♦ Protective Functions

-- Overvoltage

-- Undervoltage

♦ Typical Applications

• Pumps • Fans

• Blowers • Motors

• Compressors

♦ Approvals

• CE • CCC

♦ Technical data

Electromagnetic relays are generally composed of a core, a coil, an armature, a contact spring, and the like. As long as a certain voltage is applied to both ends of the coil, a certain current flows in the coil, thereby generating an electromagnetic effect, and the armature will absorb the pulling force of the return spring against the iron core under the action of the electromagnetic force attraction, thereby driving the armature. The moving contact is in contact with the stationary contact (normally open contact). When the coil is de-energized, the electromagnetic suction force also disappears, and the armature returns to the original position at the reaction force of the spring, so that the movable contact is attracted to the original static contact (normally closed contact). This is sucked and released, thereby achieving the purpose of turning on and off in the circuit. For the "normally open, normally closed" contacts of the relay, it can be distinguished as follows: a static contact that is in an open state when the relay coil is not energized, called a "normally open contact"; a static contact that is in an on state It is a "normally closed contact".