Dc Fuse Block - Magnum Energy ME Series Operator's Manual

3. Installation,
continued

DC Fuse Block

A fuse or circuit breaker must be located within 18 inches of the battery to protect 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.
C o n n e c t t h e p o s i t i v e c a b l e ( R E D ) f r o m t h e i n v e r t e r t o t h e a s s e m b l y . D O N O T
connect the positive cable to the inverter at this time.
S e c u r e l y t i g h t e n t h e f u s e b l o c k ' s l u g s . O n c e t h e e n t i r e i n s t a l l a t i o n i s c o m p l e t e ,
r e i n s e r t t h e f u s e i n t o t h e f u s e b l o c k b e f o r e c o n n e c t i n g t h e p o s i t i v e c a b l e t o t h e
i n v e r t e r .
Conductor Size
Rating (conduit)
Rating (free air)
Breaker
Fuse
#2 AWG #2/0 AWG
115 A max 175 A max
170 A max 265 A max
N/A DC175
200 A 300 A
Table 3 - DC Fuse Rating
2. INSTALLATION
#4/0 AWG
250 A max
360 A max
DC250
400 A