![Fuse breaks when I flip this switch. Opened it and found this? Why would one put a switch between negative and positive wires?? Am I missing something? : r/askanelectrician Fuse breaks when I flip this switch. Opened it and found this? Why would one put a switch between negative and positive wires?? Am I missing something? : r/askanelectrician](https://preview.redd.it/fuse-breaks-when-i-flip-this-switch-opened-it-and-found-v0-m6xdxpyu0a5b1.jpg?width=640&crop=smart&auto=webp&s=ebc845cbe932ee480e3c98f06a5edc699206c552)
Fuse breaks when I flip this switch. Opened it and found this? Why would one put a switch between negative and positive wires?? Am I missing something? : r/askanelectrician
![Amazon.com: labwork Universal Red LED Fog Light Wiring Harness Fuse Laser Rocker Switch Relay 12V : Automotive Amazon.com: labwork Universal Red LED Fog Light Wiring Harness Fuse Laser Rocker Switch Relay 12V : Automotive](https://m.media-amazon.com/images/I/61NbtvEQI1L._AC_UF1000,1000_QL80_.jpg)
Amazon.com: labwork Universal Red LED Fog Light Wiring Harness Fuse Laser Rocker Switch Relay 12V : Automotive
![LED Light Bar Wiring Harness Kit For 2 Lights 1 Light Fuse On-off Switch 12V 40A Relay 180/300W For 4-52 inch LED Work Light Bar - AliExpress LED Light Bar Wiring Harness Kit For 2 Lights 1 Light Fuse On-off Switch 12V 40A Relay 180/300W For 4-52 inch LED Work Light Bar - AliExpress](https://ae01.alicdn.com/kf/S035c01ebfed14a7680a81b3aed0ff36d9/LED-Light-Bar-Wiring-Harness-Kit-For-2-Lights-1-Light-Fuse-On-off-Switch-12V.jpg)
LED Light Bar Wiring Harness Kit For 2 Lights 1 Light Fuse On-off Switch 12V 40A Relay 180/300W For 4-52 inch LED Work Light Bar - AliExpress
![LED wall light, what's the best way to safely check the fuse? Is turning the light switch off enough or should I turn the mains off? Contactless tester doesn't seem to pickup LED wall light, what's the best way to safely check the fuse? Is turning the light switch off enough or should I turn the mains off? Contactless tester doesn't seem to pickup](https://preview.redd.it/led-wall-light-whats-the-best-way-to-safely-check-the-fuse-v0-ux2a6keza7na1.jpg?width=640&crop=smart&auto=webp&s=341f36ea6d5a7475cfbdecbfd645ec64447ed953)
LED wall light, what's the best way to safely check the fuse? Is turning the light switch off enough or should I turn the mains off? Contactless tester doesn't seem to pickup
![UK - this is probably a very simple one but I have a 2 way light that keeps tripping the fuse whenever I flick the lightswitch . My guess is it's due UK - this is probably a very simple one but I have a 2 way light that keeps tripping the fuse whenever I flick the lightswitch . My guess is it's due](https://i.redd.it/nlehjz6kqjna1.jpg)
UK - this is probably a very simple one but I have a 2 way light that keeps tripping the fuse whenever I flick the lightswitch . My guess is it's due
![Square D 30 Amp 240-Volt 2-Pole Fused Indoor Light Duty Safety Switch for H or J Fuse Types L221N - The Home Depot Square D 30 Amp 240-Volt 2-Pole Fused Indoor Light Duty Safety Switch for H or J Fuse Types L221N - The Home Depot](https://images.thdstatic.com/productImages/92f4cc23-56dd-45c7-a659-adc7adc1b991/svn/square-d-disconnect-switches-l221n-64_1000.jpg)