Owner`s manual

Page 25
© 2010 Magnum Energy, Inc.
3.0 Installation
3.8.5 DC Hardware Connections
Do not put anything between the DC cable lug and the DC terminals (i.e., on the DC circuit breaker,
DC shunt, batteries, and inverter/busbars). Ensure the hardware used to hold these connections is
stacked correctly. Incorrectly installed hardware causes a high resistance connection which could
lead to poor inverter performance, and may melt the cable and terminal connections.
Follow Figures 3-10 and 3-11 on how to connect the DC cables and stack the hardware correctly.
Info: After making the battery connections and ensuring they are properly torqued,
cover the outside of the connection with petroleum jelly or an antioxidant grease/spray.
Do not put jelly/anti-corrosion grease between the terminal and the battery cable.
Figure 3-10, DC Connections - with Magnum Inverter Installed
3
6
1
2
4
5
3
1
2
3
1
2
4
INVERTER DC NEGATIVE AND
POSITIVE CONNECTIONS
BATTERY NEGATIVE CONNECTION
BATTERY POSITIVE CONNECTION
Bottom of Shunt
hardware stack-up:
1
DC Shunt
2
DC Neg. to Ground Busbar
3
Negative (-) Battery Cable Lug
4
Brass Flat washer
5
Brass Split-lock washer
6
Brass Hex Bolt (3/8-16)
DO NOT place anything between
the DC shunt and the busbar
or between the busbar and the
negative battery cable lug.
Busbar Hardware Stack-up:
1
Inverter DC terminal
2
Copper busbar
[(-) to shunt, (+) to DC breaker]
3
5/16-18 Nut (Flange or Kep)
DO NOT Place anything between
the Inverter DC terminal and the
copper busbar.
Bottom of DC Breaker
hardware stack-up:
1
DC Breaker Terminal
2
Positive (+) Battery Cable Lug
3
Split-lock washer
4
Hex Bolt (3/8-16)
DO NOT place anything between
the DC breaker terminal and the
positive battery cable lug.