EL731-12-00

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Protection relays and systems are well-regarded electronic components that are used to protect valuable equipment against costly accidents. In this article, we will discuss the EL731-12-00 application field and working principle.

The EL731-12-00 relays are primarily used for controlling, protection, and monitoring of electric motors. It is often installed in conjunction with a motor overload relay. The EL731-12-00 is a flexible, robust and reliable relay, designed to protect single-phase motors of up to 12A. It is able to react to any anomalies, such as temperature rises or short circuit currents and trips the circuit accordingly.

The working principle of the EL731-12-00 is relatively simple. It is a contact-type relay which is connected in series with the motor and is mounted within the control panel. When the motor is energized, the coil of the relay is energized and the armature is engaged. When the motor is overloaded, or when there is a short circuit, the armature drops, the contacts open up and the motor circuit is disconnected.

The EL731-12-00 can be used both as a general-purpose relay and as a differential relay. As a general-purpose relay, it is used to measure the current consumed by a motor, by sensing the voltage and current in the phase of the motor. When a current increase is detected, the relay trips, thus limiting the damage caused to the motor. When used as a differential relay, the EL731-12-00 serves as a circuit breaker. It senses the difference in the current flows in two conductors, and when the difference exceeds a certain limit, the relay trips and the circuit is disconnected.

The EL731-12-00 protection relay is a powerful and reliable device which helps to protect valuable equipment from dangerous overcurrents and short circuits. It is economical and easy to install and offers a wide range of features which make it suitable for a variety of applications. Furthermore, it is suitable for a wide range of current ratings, thereby making it suitable for a variety of motor types and applications.

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