Operator`s manual
2003 - Magnum Energy, Inc.
17
2. INSTALLATION
3. Installation, continued
DC Fuse Block
A fuse or circuit breaker must be located within 18 inches of the battery to pro-
tect the DC wiring system. The device must be rated to match the size of the cable,
but can be rounded up to the next larger size (i.e., a cable rated at 150 amps can
accept a 175 amp fuse) as necessary.
Mount the fuse block (or circuit breaker assembly) as near as practical to the
batteries.
Remove the fuse (or open the circuit breaker) and connect a short cable (same
rating as the battery cables) to one end of the fuse block.
Connect the short cable to the positive battery terminal.
Connect the positive cable (RED) from the inverter to the assembly. DO NOT
connect the positive cable to the inverter at this time.
Securely tighten the fuse blocks lugs. Once the entire installation is complete,
reinsert the fuse into the fuse block before connecting the positive cable to the
inverter.
Table 3 - DC Fuse Rating
Conductor Size #2 AWG #2/0 AWG #4/0 AWG
Rating (conduit) 115 A max 175 A max 250 A max
Rating (free air) 170 A max 265 A max 360 A max
Breaker N/A DC175 DC250
Fuse 200 A 300 A 400 A