System Specifications; Batteries; System Grounding; Dc Output - Mitsubishi Electric BC16 Installation, Operation & Maintenance Manual

6. S S
YSTEM PECIFICATIONS
6.1 B
ATTERIES
Please refer to system drawings for model specific information.
Type: Valve Regulated Lead Acid (VRLA), sealed, non-spillable
Voltage: 12 VDC Nominal
Battery Strings: The cabinet can accommodate two (2) 288 VDC battery strings. Each string is
composed of four (4) trays of five (5) 12 VDC batteries each and a single tray of four (4) 12VDC
batteries for a resulting 288VDC battery string.
Only cabinets with Flame Retardant Batteries are suitable for computer room
use.
6.2 S G
YSTEM ROUNDING
All system ground wires should be derived from the main building ground source.
Cabinet Safety Ground: Each cabinet is supplied with a #14-1/0 mechanical ground lug, located
on the lower right corner of the breaker pan, which accepts bare wire from #6 AWG to 300 MCM
cable.
Torque: 325 lb-in
Wire Size and Type: Ground wire should be sized per NEC and/or all applicable national and
local codes.
Battery Cabinet Breaker or Fuse Size
Up to 200 amps
201-300 amps
301-400 amps
401-500 amps
501-600 amps
6.3 DC O
UTPUT
Please refer to system drawings for model specific information.
Voltage: 288 VDC Nominal
Circuit Breaker: UL Listed 600 VDC rated. See system drawings for details.
Battery Tray Fuse Type: Ferraz (Gould) A50QS, A50P or equivalent
Wire Size and Type: Per NEC and/or all applicable national and local codes.
Wire should be sized for a maximum voltage drop of 0.5 volt.
11/16/2011
Minimum Copper Ground Wire Size
6 AWG
4 AWG
3 AWG
2 AWG
1 AWG
12
BC16 B C
ATTERY ABINET
755-00086 R02