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- Great for Alternator Shut Off
- High Current 180A Continuous Duty
- Includes Wiring Diagram and Faceplate
- Meets requirements of NHRA and SCCA
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Fastronix High Current Double Pole (DPST – 4-Post) Master Battery Disconnect Switch with Face Plate
*$560.90
Informação adicional
| Operation Mode | Off |
|---|---|
| Current Rating | 1.8E+2 Amps |
| Contact Type | Normally Open |
| Connector Type | Stud |
| Brand | Fastronix Solutions |
| Terminal | Scca |
| Item dimensions L x W x H | 6.1 x 3 x 4.5 inches |
| Circuit Type | 4-way |
| Contact Material | Brass |
| International Protection Rating | IP54 |
| Switch Type Toggle | Switch Type Toggle |
Gerald L Green –
Heavy duty and works great.
Eric the Technotraveller –
I used this heavy duty DPST switch for a 24V solar battery disconnect project where I needed the two-pole, single-throw design. I used the smaller, 20A terminals for signaling the switch’s ON/OFF state. The larger 180A terminals (of brass, which is mostly copper) disconnect the battery. The lever-knob is firmly spring-loaded so that the internal contact plate ‘snaps’ open quickly when being turned OFF – it takes a firm effort to turn it ON. For mounting, the threaded lever-knob shaft is flat on two sides so that it won’t rotate in the mounting hole, so I drilled a flat-to-flat diameter hole with a step-bit and then carefully filed the other two sides larger, which worked well. If you can’t or don’t want to do this then consider the separate mounting ring they offer. Curiously the switch’s ON/OFF faceplate wasn’t keyed to the flats and would spin freely until the nut was tightened, but perhaps that would be convenient sometimes? I ended up not using the faceplate and just applied some labels.
John –
did what it was made to
Darren Manning –
Worked great and will allow me to kill the alternator circuit when in the off position.
Hank D –
Worked as expected. Easy to wire up.
Amazon Customer –
This switch replaced a single pole switch I had installed in a street rod. Now, with the two poles, the alternator field is also switched. Switch feels like good contact is being made. Has been working well. Only drawback is that it would have been easier to install if the threaded shaft was longer. It went through an area that was thicker than normal.
Thomas L. Craine –
Exactly what I needed to ise to cut power to my Race car in an emergency!
Thanks!
Eric the Technotraveller –
I put this in the seat pedestal of my 2020 Sprinter to serve as a disconnect for the connection between the starter battery and the solar system in the back. By connecting the smaller posts to the ignition wire that has voltage only when the vehicle is running, I was able to send that signal to the back as well, which I use with a relay to switch between a Victron DC-DC charger (which pulls from the engine while running and safely charges the Lithium batteries according to their charge profiles) and a Magnum smart battery combiner (which sends power to from the Solar/Lithium system when the car is not running, calibrated so that it only connects when the Lithiums are nearly full). This setup ensures my electric sliding door no longer drains my starter battery. All this to say, I appreciate having a solid switch like this to completely disconnect the two systems when it’s time for maintenance. Unlike most other battery switches I found, being able to recess the bulk of it in the seat pedestal and only expose the relatively low profile switch means it’s not a trip hazard. The solid click when I turn it on gives confidence it won’t accidentally turn off, and it feels very sturdy. Very happy with this purchase. May as well get the kit with the rubber post covers if you don’t already have them, they are a useful bit of extra protection.