138 - 5190X Excavator Control Panel Timer Relay Electric E307 Excavator Spare Parts
Specifiions
Part Name | Timer Relay Electric |
Part Number | 138 - 5190X |
Model Number | E307 |
Color | Black |
Quality | 100% tested |
Condition | 100% New |
Warranty | 6 month |
Packing | Neutral packing |
Availability | Have the spot |
After-sales Service Provided | Provided |
Description
Electromechanical relay schematic showing a control coil, four pairs of normally open and one pair of normally closed contacts
An automotive-style miniature relay with the dust cover taken off
A relay is an electrically operated switch. It consists of a set of input terminals for a single or multiple control signals, and a set of operating contact terminals. The switch may have any number of contacts in multiple contact forms, such as make contacts, break contacts, or combinations thereof.
Relays are used where it is necessary to control a circuit by an independent low-power signal, or where several circuits must be controlled by one signal. Relays were first used in long-distance telegraph circuits as signal repeaters: they refresh the signal coming in from one circuit by transmitting it on another circuit. Relays were used extensively in telephone exchanges and early computers to perform logical operations.
Characteristic
1.Safe and environmental protection, strong and durable
2.Strict craft, save time and energy
3.Easy fixed and connected load
4.Temperature stability can prolongs product life and ensures good performance
5.Low friction ensures high efficiency and long life
6.Simple and reliable structure design
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