Application Guide

System Application Guide SAG584000300
NetSure™ 4015 30kW 400V DC Power System Issue AB, April 5, 2013
Spec. No. 584000300 (Model 4015-X003)
Page 25 of 32
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DC Load Distribution (Bulk Output from Power and Control Sub-Rack)
Refer to Table 9 for recommended wire sizes and lugs.
DC Load Distribution
(Bulk Output from Power and Control Sub-Rack)
(Studs for Lug Connection Provided)
Distribution
Voltage
Maximum
Output Current
Recommended
Wire Size
1
Lug
Requirements
Recommended Lug
(Emerson P/N)
400V DC
89A
2 AWG
(35mm
2
)
2-Hole,
1/4” Bolt Clearance Holes,
5/8" Centers
245346900
1
Wire sizes based on recommendations of the American National Standards Institute (ANSI) approved
National Fire Protection Association's (NFPA) National Electrical Code (NEC). Table 310-16 for copper
wire at 90 C conductor temperature operating in ambient of 35 C was used. For other operating
ambient temperatures, refer to the NEC. For operation in countries where the NEC is not recognized,
follow applicable codes.
Table 9
Recommended DC Load Distribution Wire Sizes and Lugs
When Used with Bulk Output from Power and Control Sub-Rack
External Controller Interface (Distribution Sub-Rack)
The IB2 (ACU+ Controller Interface Board) provides connection points for digital inputs and programmable
relay outputs, as shown in the system installation instructions (IM584000300). Recommended wire size for
these connections is 22 AWG (0.5mm
2
) for loop lengths up to 200 feet (61m) and 18-20 AWG
(1mm
2
- 0.75mm
2
) for loop lengths over 200 feet (61m).
Battery (Power and Control Sub-Rack)
The battery cables to the internal battery tray(s) are factory provided and sized accordingly. These cables are
8 AWG and terminated on the “Power and Control Sub-Rack” side with a P/N 245391600 lug.
Battery cables to external batteries should be sized per the current edition of the American National
Standards Institute (ANSI) approved National Fire Protection Association's (NFPA) National Electrical Code
(NEC), applicable local codes, and your specific site requirements. For operation in countries where the NEC
is not recognized, follow applicable codes.
Two-hole lugs with 1/4" bolt clearance holes on 5/8" centers are required.