Application Guide

SAG582120600 System Application Guide
Issue BF, February 21, 2014 Spec. No. 582120600 (Model 801DB
NVGB)
Page 42 of 72
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Systems, North America, Inc. Any copying, use, or disclosure of it without the written permission of Emerson Network Power, Energy Systems, North America, Inc. is strictly prohibited.
Wiring Notes
Refer also to the next section, Wiring Illustrations.
Bay Frame Grounding Wire Sizes and Lugs Selection
Features
♦ 1/4” clearance holes on 5/8" centers are provided for installation of customer provided two-hole lugs.
Restrictions
All lugs for customer connections must be ordered separately.
Customer needs to supply lug mounting bolts and hardware.
Ordering Notes
1) The recommended frame grounding wire size is 6 AWG. The recommended lug is P/N 245346700.
External Alarm Wiring—List 105 and 107 Bays
Features
♦ An external alarm circuit card is located behind the top left panel in each bay. This circuit card provides
three sets of Form C relay contacts for external alarms. Terminal blocks are provided on the circuit card
for customer external alarm connections and RS485 connections.
Restrictions
Relay contacts are rated for 1 amp at 60 VDC.
Terminal block wire size capacity is 14 to 26 AWG.
Ordering Notes
1) Recommended Wire Size: 22 AWG for Loop Lengths Up to 200 ft.
18-20 AWG for Loop Lengths Over 200 ft.
External Alarm and Control Wiring—List 106 and 108 Bays
Input/Output Circuit Card Features
♦ An input/output circuit card is located behind the top left panel in each bay. This circuit card provides four
alarm relays, each with one set of Form C relay contacts, for external alarms. Terminal blocks are
provided on the circuit card for customer external alarm connections.
Restrictions
Relay contacts are rated for 0.6 amp at 60 VDC.
Terminal block wire size capacity is 14 AWG max.
Ordering Notes
1) Recommended Wire Size: 22 AWG for Loop Lengths Up to 200 ft.
18-20 AWG for Loop Lengths Over 200 ft.
Auxiliary Fuse Circuit Card Features
♦ An auxiliary fuse circuit card is located behind the top right panel in each bay. This circuit card provides
four fuses for auxiliary equipment loads and two fuses for optional external (ABS) power to the
Meter/Alarm Panel. All fuses are rated at 1-1/3A. Terminal blocks are provided on the circuit card for
auxiliary load connections, external (ABS) meter input power connections, and optional external sense
lead connections.
Restrictions
Terminal block wire size capacity is 14 AWG max.
Installer must make system ground/return connection(s) to side A and side B Ground/Return Input busbars
located behind circuit card.
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