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elalexan 2018-09-07 17:22:18
This 'monster' Relay is a good quality heavy duty, high current on/off contactor. It is equipped with large connection points appropriate for large amount of current ... When you supply the coil with needed power the noise and torque produced is a proof that this relay can hold a lot, lot, lot of current! We have to take into account that coil gets warm after a while so ... this is another reason for the metallic plate - basement of this relay ... As you can see in the photo the coil consumes more than 0,6 A at about 12v thus when activated this relay needs a power of about 8 - 10 Watts that is a lot more than small relays need. These electrical and power characteristics make this relay more appropriate for start-up, DYI spot welding devices, or large scale - high power backup and solar panel applications. I am not sure it can hold 500A for a long time but i am also convinced that this can be used to start - stop and operate a 4000W (ore more watts) inverter like this one ( with no problem ... SHIPPING and DELIVERY was very fast, once again !. NOTICE: For Power supply and measurement of test presented i n the photo i used RUIDENG DPS5005 50V 5A Buck Adjustable DC Constant Voltage Power Supply Module Integrated Voltmeter Ammeter (
Comments (1)
  • BricoloTanja Interresting, precise, clear, and detailed comment. Thank you very much. The product is givan for 500 Amps peak and 200 Amps continuous. (= 2400 Watts on 12 Volts). Not sure it can feed continuously a 4000 W inverter (needs ~350 Amps with 5% losses)., bur could work with aluminium sink plate for a certain time ? To be checked. Have a nice day.

    Reply 2018-09-12 20:28:27
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