Split Charge Relay Fuse Size
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Split charge relay fuse size. 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. When installing the cable in your split charge relay system use a cable of at least 16mm2 cross section 110a and upwards. Connect lead b to terminal 30 on the split charge relay and the other end of the lead to fuse box 1. The following formula will give you size fuse you need.
Voltage sensed split charge relay 2. June 11 2019 at 3 26 pm. 1 x 500mm 110amp red relay to fuse box lead 6mm to 6mm terminals 1 x 250mm 110amp red fuse box to leisure battery lead 6mm to 8mm terminals 1 x 1000mm 110amp black earth cable. It should be sufficient for most vehicle alternators.
8mm to 10mm terminals spare terminals heat shrink pack for modifications if required. Connect the other end of lead c to terminal 87 on the split charge relay. Watts divided by volts times 1 25. Connect lead c to fuse box 2 insert a 40amp strip link fuse and tighten both of the 8mm nuts.
Cable to connect everything together depending on the size of kit you purchased 3. If the cables runs total from alternator to relay relay to battery are long your 10mm cable may result in excessive voltage drop although safe enough it ll be ok up to around 7 or 8 ft but for 10ft i d use 15mm and for 15 ft 20mm. When the engine is not running ignition is off the split charge relay will open and disconnect the batteries. Each battery that connects into the split charge device should have an appropriately rated fuse installed in line with the cable as close as possible to its ve terminal.
Sizing your split charge unit and connecting cables. What size cable should i use for my split charge relay. This minimises the unprotected length of cable the section from the terminal to the fuse. Winjun 4pin split charge relay switch 12v dc 200 amp heavy duty high current with connectors accessory.
Cable ties self adhesive bases to keep it all tidy.