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    Tag: electromagnetic relay

    How to Select an Electromagnetic Relay?

    The working principle of electromagnetic relay is that when the electromagnet is energized, the armature is sucked down to make the two contacts, and the working circuit is closed. When the electromagnet loses its magnetism, the spring pulls the armature up, cutting off the working circuit. It is usually used in automatic control circuits. It is actually an automatic switch that uses a smaller current to control a larger current, so it plays the role of automatic adjustment, safety protection, and conversion circuit in the circuit.

    How to Use an Electromagnetic Relay on a Switch?

    Electromagnetic relay (EMR) is a kind of electrical relay that works in the effect of the suction between the magnet core and the armature in the input circuit. In other words, electromagnetic relay works in a way of driving the movable part in the magnetic circuit by the electromagnetic suction produced by the control current going through the coil, to achieve the function of contact open, closed and conversion.

    How to Control Electromagnetic Relays?

    An electromagnetic relay is a double-blade, double-throw relay that uses 2NO+2NC contacts to control a larger current. In the operation demonstration, we use 4 bulbs (220V), a power supply, a push-button switch, and the relay to show you how it works in a more visual way. ATO-HH52PL series electromagnetic relays are reliable and easy-to-install drives with powerful load capacity and compact size.

    Electromagnetic Relay Working Principle & Testing

    How does an electromagnetic relay work? Electromagnetic relay uses electromagnet to control “on” or “off” status of the operating circuit. Electromagnetic relay consists of electromagnet, armature, spring, movable contact and stationary contact. When placing voltage to both ends of a coil, the coil will be flowed with current and generate electromagnetic effect.

    Solid State Relays vs. Electromagnetic Relays

    Solid state relay (SSR) is a non-contact switch composed of solid-state electronic components with high reliability, non-contact, no spark, long life, no noise, no electromagnetic interference, high switching speed. Electromechanical relays (EMR) is a kind of magnetic switch made up of multi-coils, movable elements, contact system etc. and it is easy to drive and widely used in all the areas. Then what are they differences? Which one is better?