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  • Dongguan Fangxiong Electric Co., Ltd. | Communication Relay | General Power Relay | Automotive Relay | Magnetic Holding Relay
  • Dongguan Fangxiong Electric Co., Ltd. | Communication Relay | General Power Relay | Automotive Relay | Magnetic Holding Relay
  • Dongguan Fangxiong Electric Co., Ltd. | Communication Relay | General Power Relay | Automotive Relay | Magnetic Holding Relay
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Industry NewsCurrent Location: Home- > Industry News

What types of relays can be divided into according to their working principles

点击率: Release time: 2018-04-13 14:17:58

1. Electromagnetic relay

A relay that generates a predetermined response from the relative movement of mechanical parts under the action of an electric current in the input circuit.

It includes DC electromagnetic relay, AC electromagnetic relay, magnetic holding relay, polarization relay, reed relay, and energy-saving power relay.

(1) DC electromagnetic relay: An electromagnetic relay whose control current in the input circuit is DC.

(2) AC electromagnetic relay: An electromagnetic relay whose control current in the input circuit is AC.

(3) Magnetic holding relay: After the magnetic steel is introduced into the magnetic circuit, the relay armature can still maintain the state when the coil is energized, with two stable states.

(4) Polarized relay: a DC relay whose state changes depending on the polarity of the input excitation quantity.

(5) Reed relay: A relay that opens, closes, or switches the line by using the action of a reed that is sealed in a tube and has the dual functions of a contact spring and an armature magnetic circuit.

(6) Energy-saving power relay: The control circuit in the input circuit is an AC electromagnetic relay, but its current is large (typically 30-100A), small in size, and power-saving.

2.Solid State Relay

A relay in which input and output functions are performed by electronic components without mechanical moving parts.

3.Time relay

When the input signal is added or removed, the output part needs to be delayed or limited to the specified time before closing or opening the relay of its controlled line.

4.Temperature relay

A relay that operates when the outside temperature reaches a specified value.

5.Wind speed relay

When the wind speed reaches a certain value, the controlled circuit will be turned on or off.

6.Acceleration relay

When the acceleration of the moving object reaches the specified value, the controlled circuit will be turned on or off.

7. Other types of relays

Such as optical relays, acoustic relays, thermal relays, etc.

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