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  • What are the selection conditions for relays

    First, understand the necessary conditions: 1. The power supply voltage of the control circuit and the maximum current that can be provided; 2. The voltage and current in the controlled circuit; 3. How many groups and what form of contacts are requir...

  • What is the function of the relay coil

    A relay is an electrical control device, which is an electrical appliance that makes a predetermined step change in the controlled quantity in the electrical output circuit when the change of the input quantity (excitation quantity) reaches the speci...

  • What are the common faults of relays

    For electromagnetic (voltage, current, intermediate) relays, the sensing mechanism is an electromagnetic system. The faults of the electromagnetic system are mainly concentrated in the coil and the moving and static iron cores. (1) Coil Troubleshooti...

  • What are the technical parameters of the main products of the relay

    The technical parameters of the main products of the relay have five aspects. 1. Rated working voltage It refers to the voltage required by the coil when the relay is working normally. Depending on the model of the relay, it can be either AC voltage ...

  • What is the role of the magnetic latching relay in the device

    Magnetic latching relays are very similar to polarized relays, with two static contacts, one moving contact, and multiple coils, which are equivalent to a "bistable relay" (which can also be regarded as a "current-driven" SPDT switch") The polarized ...

  • What are the main classifications and functions of voltage relays

    The main classification and functions of voltage relays: 1) Electromagnetic relay: use the circuit in the input circuit to connect the core of the electromagnet 2) Solid-state relay: refers to a kind of relay in which electronic components perform th...

  • What issues should be paid attention to when choosing a relay

    When selecting a relay, factors such as the type of power supply, the rated voltage and rated current of the contacts, the rated voltage or rated current of the coil, the combination and number of contacts, the pull-in time, and the release time are ...

  • Features and applications of voltage relays

    Voltage relay is a commonly used electromagnetic relay, and voltage relay is used for voltage protection and control of power drag system. The coil is connected to the main circuit in parallel to sense the line voltage of the main circuit; the contac...