So if you’re blowing 15A fuses with a 150W LED setup, then I think it would be better to try a 20A fuse with wire and relay sizing to match. Striker fuses are fuses fitted with a spring-loaded striking device that can trip adjacent switches and also indicate that a fuse has blown. Hopefully this guide helps you to install all the products here at Oznium quickly and most importantly, safely. The user is cautioned to seek competent engineering assistance in the use of this calculator and application of results generated by it. Circuit breakers are switches, and like all switches, they can be reset once they have been flipped.

After you have calculated this, it is a simple case of adding around 10% to the value and choosing the nearest fuse to match. These metal strips are connected to switches which are activated when a fuse blows, creating an electrical isolator and freezing the circuit.Double Break Combination Fuse Switch Units are a higher capacity model used to ensure an uninterrupted power supply to machinery and appliances. I have fried several solar controllers and now have 1060 watts with 400 watts of wind turbine and six 29 series dc batteries. I think that concept is also the basis for the USCG fusing requirements, although that could be incorrect. It’s been very confusing because everyone has a different take, so I really appreciate from manufacturer’s answers.

HRC Fuse Types High rupturing capacity (HRC) fuses feature a transparent capsule around the central resistor. We had an appointment quickly and the engineer was able to find the issue, which was not straightforward, within an hour and rewire the effected ceiling lamp and resolve the issue completely within 2 hours.

The user is further cautioned that the results generated are based upon certain simplifying assumptions, which may or may not be valid for a specific case.

Things could get really ugly really quickly, so to avoid all that mess you’ll need to ensure that you get the right size fuse for the job every time. You have a "sometimes I can run my loads and it works, sometimes doing the same thing blows the fuse" situation. The plug with its fuse for the appliance make the minimum protection required for your piece of equipment/appliance. You grab the little booklet that came with your charge controller and flip to the section titled “Fusing”. Therefore any irregularity of the load circuit could cause a spike in the inverter draw to kill even a 30A fuse.

Fill out our calculator at the top of the page and it will provide a recommended fuse size based on your inputs.