True MODS 6 Pack Bosch Style 4-Pin 12V Fused Relay Kit SPST 30 Amp

Works great!

All pins and sockets were straight and tight. All leads had insulation separated at last 1/2 inch or so to ease installation. I used these relays to replace OEM relays and inline fuses in an off road LED lighting installation on an ATV. Very limited space available for installation. With an integrated fuse, these were smaller than the OEM relay with separate inline fuses, thereby reducing the overall space needed, allowing for a smaller electrical junction box to house them. These were every bit the quality I have come to expect from Bosch after 40 or so years in the auto repair business. They function fine and make almost no noise when activated. I am satisfied with this product.

Used these mainly because I like how they attach to eachother for easy mounting and able to keep wiring clean. Having the fuse built into the relay is a cool feature. Wire is cca for those who are wondering. I have these powering low amp products( led lighting, starlight) and have no issues. Very happy with these relays.

Bought these relays and used them for over a year. Downside is there is no diode for negative voltage spikes when turning off the relay due to the induced flyback voltage once the relay power is disengaged. This isn't good for your electronics long term. Would but more of these i they had a diode. Would also like these in 40amp continuous power

I like this product. The fuse is easy to see and check. Easy to wire, works great

I had a mechanical clutched cooling fan go out on me and throw part of the fin into the radiator. I decided to use the opportunity to switch to an electric fan. The relay kit I originally bought was over $25 and later developed some internal wiring issue that could not be rectivied since the relay base was not designed to be serviceable. Eventually i decided to just wire in a standard relay and ditch the kit solution. I came across these and was impressed. the relays are interchangeable and the built-in fuse is convenient for reduction of wiring. Upon completion, I tried it out and got a nice loud and solid "CLICK" as the relay engaged. Sounds like its got good contact internally. This gives me a much more warm fuzzy feeling than the weak click of the old fan conversion kit relay. Best of all I got a box of six of these so if anything goes wrong, I have a replacement or extras for future car mods. :)

I bought few of these 30amps with fuses 30amps with out fuses, 60 and 80 amps to install in my drag truck making it a street weekend truck. Cheaper buying them here than going to local parts store. I have 4 ground wires going to the body in different location. Power items - dual fans, water pump, fuel pump, transmission cooler mounted under the truck. All is on a ground wire coming off grounded wire - not like most people will just ground a item to the body. I like to make sure I have a very good ground. Also like to make sure when the truck is running at idle I have14 volts inside the truck cab at the ignition switch and power going out of it. The switches work for me no problem with any Update 10/26/2019 no problems with the relays. I have not blown a fuse yet. Some people could be having problems, Not a good ground source, wiring gauge to small, Amp draw on start up exceed 30 amps on. - On fans amp draw can be high when 1st turn on. All power source should be check amp draw on start up so you can match the relay to amps being used. I have 4 ground wiring. I have dual fans 2800 cfm each, fuel pump 14gp, water pump, trans fan cooler, My fans on start up both pull 32 to 35 amps then runs at about 22amps - So my relays on the fans I'm using 60/80 amps. Everything els I'm using 30amp relays. at idle with these on fans both, fuel pump, water pump, trans cooler fan is 30 amp relay my amp draw is 68 amps. For some of the people having problems I hope this help. My wiring gauge 8 on the front fans, 10 on the rest. I'm not using the the wiring that came with it.

Only needed one, but bought these because of the value and fit. Easy to install.

Good product

Be very very careful wired incorrectly, i had to pry the wires out the connector and switch them around to colour match correctly as shown in picture, manufacturer issue