FZ12D5-5F70Y

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The FZ12D5-5F70Y is an electromechanical relay designed for use in locked rotor protection. The device is designed to detect locked rotor conditions in single phase or three phase circuits. It is used primarily in motor protection applications, but can also be employed in other types of electrical installations.

The FZ12D5-5F70Y is a widely used electromechanical relay, and its application field is extensive. It is employed to sense the locked rotor condition of single-phase induction motors, and also to detect phase-to-phase current imbalance in three-phase motors. It can be used to protect the winding circuits of single-phase motors, and in applications such as oversenstive current reversing circuits. The FZ12D5-5F70Y can also be utilized in applications requiring protective devices for site power or electricity supply.

The working principle of the FZ12D5-5F70Y is based on the principle of electromagnetic attraction. A magnet attracts a movable iron core when a current is applied. The force of the magnet then depresses or presses the core onto the stationary armature, completing the circuit and causing the relay to trip. The main parts of the relay are the core, armature, coil and energizing circuit. In a normal, healthy motor, the energizing current in the relay coil causes the core to move onto the armature and complete the circuit. When a locked rotor condition is detected, the energizing circuit will cause the core to move away from the armature, thus opening the circuit and tripping the relay.

The FZ12D5-5F70Y can be used in a variety of applications and can provide reliable protection for all types of electrical systems and equipment. With its durable construction and easy installation, the FZ12D5-5F70Y can provide reliable protection for single phase and three phase motors. It is a reliable and cost effective protective device that can help improve the safety and operation of any electrical system.

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