# ISO Main Breaker 2005 E **URL:** \ **Category:** GEM Forum\ **Created:** [May 18, 2021, 3:02pm UTC](https://community.electricforum.com/t/iso-main-breaker-2005-e/21484 "2021-05-18T15:02:25Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Tantrum](https://avatars.discourse-cdn.com/v4/letter/t/71e660/32.png) [@Tantrum](https://community.electricforum.com/u/Tantrum)\ **Post date:** [May 18, 2021, 3:02pm UTC](https://community.electricforum.com/t/iso-main-breaker-2005-e/21484/1 "2021-05-18T15:02:25Z")
Second time Ive popped the Main breaker in our GEM. Checked with GEM Parts Direct and they do not have one in stock. This can not be a unique part to GEM. Does anyone have a cross reference # so i can pick up local at Electrical Supply or Auto Parts store. Even online where I could have next day air’ed. Would like before Friday. Location on vehicle is in the fuse box in dashboard. ![image](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/1/10dda126c6d31e547a8941fd0237b3d1290cf5a9.png) GEM Parts Direct P/N 060-00445 Description; Switch, Disconnect - 100A ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [May 18, 2021, 3:59pm UTC](https://community.electricforum.com/t/iso-main-breaker-2005-e/21484/2 "2021-05-18T15:59:13Z")
It needs to be a switch only, as it carries 350a peaks. ---
**Author:** ![Tantrum](https://avatars.discourse-cdn.com/v4/letter/t/71e660/32.png) [@Tantrum](https://community.electricforum.com/u/Tantrum)\ **Post date:** [May 18, 2021, 6:01pm UTC](https://community.electricforum.com/t/iso-main-breaker-2005-e/21484/3 "2021-05-18T18:01:24Z")
Ok. That might explain why when it popped it can’t be reset. Any idea of the part number to source the switch. Im glad you chimed in as well. From what Ive read in the forums you have a lot of knowledge and experience with these carts. There defiantly a lithium upgrade in my future. Its not overly surprising this is the second time this has failed. Same hill (very big), same spot, four adults, and oversized tires. Goal it to get running again for weekend and then dig into a permanent fix. ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [May 18, 2021, 6:26pm UTC](https://community.electricforum.com/t/iso-main-breaker-2005-e/21484/4 "2021-05-18T18:26:11Z")
I can’t recommend bypassing a safety switch, but that’s what I would do. Put a switch somewhere else where there is more room. It’s tough to find a switch with required specs. The old Gems used a cheap switch by the battery. I do have an electrically operated switch that fits the bill. It can be operated remotely with a small pushbutton. No current used during operation. It latches on or off just like a snap switch, but from 12 volts. @grantwest ![image](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/d/d727f44c8ee99a11c78c579127a7f0ca926220e8.jpeg) ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [May 18, 2021, 11:28pm UTC](https://community.electricforum.com/t/iso-main-breaker-2005-e/21484/6 "2021-05-18T23:28:34Z")
Do not use a 12v or 32v switch. It can’t safely interrupt hv dc. It takes a special design switch. The oem one is not adequate. IMO Here is one: > **[HBD41AA, 400A Manual Disconnect Switch | DC Components Store](https://dc-components.com/product/gigavac-hbd41/)** > > GIGAVAC HBD41AA Manual Disconnect Switch, SPST, 400A, 1000Vdc, HBD series is the first truly hermetic high power manual disconnect switch. You can search the part number for a USA seller. > **[Gigavac HBD41AA HBD41AB Maintenance Disconnect Safety Switch EV | eBay](https://www.ebay.com/itm/174768327366?hash=item28b1010ac6:g:84wAAOSwJiRgneZy)** > > (HBD41AA and HBD41AB are identical in specifications, the only difference is the color of the handle). You will receive a HDB41AB (Black handle). HBD41AB - Black handle. Weight.5 kg. Vibration (Sinusoidal, 18-500 Hz Peak): 20G. ---
**Author:** ![AssyRequired](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/assyrequired/32/7621_2.png) [@AssyRequired](https://community.electricforum.com/u/AssyRequired)\ **Post date:** [May 19, 2021, 1:45am UTC](https://community.electricforum.com/t/iso-main-breaker-2005-e/21484/7 "2021-05-19T01:45:09Z")
Ooooo - good point!! My end of day tired brain did not think about the effects of the higher Voltage. To avoid misdirecting future readers I will withdraw my suggestion.