IRHAPSODY 12V DC 120Amp 4 Pin Heavy Duty Relay, Split Charge Relay Switch, Continuous Duty SPST 4 Terminal Relay

Seems like a good product but does not work as continuous duty. Installed as part of a remote kill switch system and forgot to break the ground connection from the remote switch and the relay burned out in about a week.It probably works perfectly for other applications, just not what I needed. That said, I did pull the outer cover off and inspected the internals and everything looks solid. Must have burned one of the wires somewhere because all of the physical components appear to be in perfect condition.

Bought to take load off ignition switch. Seems a little too good for the money, so I bought a backup. Initial bench testing looks promising and the activation coil is near the 80 Ohm value (76.4 on one and 76.6 on the other) which should put it in the 2-2.5 Watt range when the engine is running.Will try to update if/when it fails.

Used this product with my 2017 Polaris RZR XP 1000 to switch power on/off from a blue sea 12 circuit fuse box/distribution box with 100 amp total capacity. If you plan to add many electronic accessories to your UTV or vehicle, this makes for a cleaner and more professional appearing install.I’ve tested this product in the elements for a few rides now and it has functioned as expected. I would recommend it.

I like the small package, but it does not fit my installation as a 250 amp rated relay.I need about 175 amps for my inverter application and need 2/0 cable with 5/16 crimp lugs that will not fit with the post spacing on the relay. I'd like to know how they get 200 amps in and out of the relay? I could grind the lugs down, space them above one another, but I lose ampacity of the lug and I still worry about lugs moving and shorting to the neighboring post.I thought some pictures of the internals would be helpful.I was able to ground the 2/0-5/6 lugs down and if I can tighten the nuts and secure the cables they may never touch.

It works with my electric power steering pump. We will see if it lasts. It should since my maximum running current is 40 Amps. The connections were adequate for my use but marginal for 120 Amps. I write an an electrical engineer with experience in relays and control devices. Never operate a relay at it's nameplate current or it will have a shorter life.

I do a LOT of electrical wiring, and this is a quality relay that lasts SO MUCH longer than a 30 amp relay in the circuit. Have used other relays that melt the wires and the relay when cooling fans stay on a little longer. Using a 120a relay to power a 30-45a circuit, works great with a draw thru relay contacts that is far below its rated amps. An overkill for many automotive circuits actually UPGRADING what the vehicle manufacturer should have done.

IRHAPSODY 12 V DC 120 Amp 4 Pin Heavy Duty Relay/Split Charge Relay Switch, 4 Terminal Relay.The studs are 6mm. The nuts are very loose on the studs, the stud threads are very shallow, the seat of the studs are very narrow so you would need to get terminals that are very close fitting. I dont like to return stuff so I will make it work. I will make washers to the exact size I need to get a good seat on the studs and if need be I will rethread the studs to a smaller size so the nuts dont strip the threads off the studs. It will cost me more in labor than what I bought it for. I will not buy this item again. After giving it a bit of thought I will not use this relay im going to use what I should have used to begin with, a tyco bosch 74960

I bought these relays to eliminate a voltage drop on a long wire run to the fuel stop solenoid from the flybridge on my boat. The relay has a much lower amperage draw than the fuel stop solenoid. The low draw allowed me to use the existing wiring from the flybridge to power the relay. I was then able to rewire the positive wire through the relay to the fuel stop solenoid with a larger gauge wire over a much shorter distance. The fuel stop solenoid now works reliably from the flybridge engine stop switch. So far, so good. It is hard for me to evaluate the value or quality of this item as I do not do automotive or marine electical work professionally. The price seemed reasonable compared with other relays viewed during my search.