HD820 - 1 Excavator Relay Control Box 243 - 77507000 OEM Standard Size

243 - 77507000 Excavator Control Panel Relay Control Box HD820 - 1 Excavator Spare Parts
 
 
Specifiions

Description
 

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.
The traditional form of a relay uses an electromagnet to close or open the contacts, but other operating principles have been invented, such as in solid-state relays which use semiconductor properties for control without relying on moving parts. Relays with calibrated operating characteristics and sometimes multiple operating coils are used to protect electrical circuits from overload or faults; in modern electric power systems these functions are performed by digital instruments still called protective relays.

Characteristic

1. Reliable
2. Security
3. Durable
4.100% original
5. The circuit is stable

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