0922001-J0 Rev A
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User GuideCordex® CXPS-E105 Edge Power Systems
7.7 Distribution cabling
7.7.1 Load planning and breaker spacing
1. Any single pole breaker rated at 100 amps or less can be mounted in any position without spacing.
2. The highest rated single pole breaker that can be used for a load is 100 amps for temperatures up to 40°C
(104°F). The highest rated single pole breaker that can be used for batteries is 100 amps for temperatures up
to 40°C (104°F) and 125 amps for temperatures up to 30°C (86°F).
3. Load /Battery should not exceed 80 percent of the bullet circuit breaker rating.
4. A minimum of 2RU (89 mm; 3.5 in.) spacing is required above system.
5. A 125 A breaker should not be used vertically above or below another 125 A breaker.
7.7.2 Load connections
Refer to guidelines supplied with the load equipment. Typically distribution cables are sized to provide a 0.5 volt
loop drop at full load as well as meeting ampacity requirements of the protection fuse or circuit breaker.
Terminate distribution cabling with 1/4 inch to 5/8 inch center lugs for connecting to the power system.
Connect load breaker return connections
1. Secure cables with two hole lugs to the 1/4 inch studs on 5/8 inch centers using the supplied hardware.
2. Run cables directly out of the rear of the distribution panel.
3. Secure cables to the cable tie brackets.
Connect load breaker hot connections.
1. Secure cables with two hole lugs to the 1/4 inch studs on 5/8 inch centers using the supplied hardware.
2. Run cables directly out the rear of the distribution panel above the breaker return cables.
7.7.3 Battery breaker connections
1. Connect battery ground connections using same guidelines as load returns.
2. Connect battery breaker (hot) connections first using same guidelines as the load breaker return connections.
3. Cables should run directly out of the rear of the distribution panel.
NOTICE
Connect load breaker returns before hot connections.
NOTICE
Final connection to battery live is not made until system startup (see the System startup section).
Insulate and leave disconnected or remove the battery fuses. Switch battery contactors o (if
used).
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