user manual

INSTALLATION (continued)
1 --- 2
Controller Ground
A grounding wire must be connected to the controller’s
lower left mounting stud. Because the controller is
mounted on the enclosure door, a conductive strap must
be used between the enclosure and the door. This
connection provi des proper grounding which does not
rely upon the door hinges.
Harnesses
The transfer switch is connected to the left side of the
control pa n el by a plug-in harness (two plugs).
Auxiliary Circuits
Connect auxiliary circuit wires to appropriate terminals
on the transfer switch. Note the control features that are
furnished on this switch. Make the necessary auxiliary
connections by referri ng to the Wiring Diagram.
Engine Starting Contacts
The engine control contact connections (if used) are
located on the transfer switch. Connect signal wires to
appropri ate terminals as specified in Table B and shown
in Figures 1–1 and 1–2. See the wiring diagram too.
Table B. Engine start connections
When normal
source fails
Te rm ina l s o n
transfer switch
contact closes TB1 and TB2
contact opens TB1 and TB3
COMMON
FEATURE 7
closes to start
FEATURE 8
opens to start
COMMON
FEATURE 14B
closed on emergency
FEATURE 14A
closed on normal
COMMON
FEATURE 14BA
closed on emergency
FEATURE 14AA
closed on normal
Engine Starting
Signals
5amps,32VDC
5ampsresistive28VDC
or 120 V AC max.
TS Auxiliary Contacts
Feature 14A & 14B
10 amps, 32 V DC
10 amps 250 V AC
general purpose
Optional
TS Auxiliary Contacts
Feature 14AA & 14BA
10 amps, 32 V DC
10 amps 250 V AC
general purpose
left side of transfer switch
Figure 1-1. Connections to engine starting contact
terminal block for 150 through 1200 amp.
J & H–design transfer switches.
TB Terminal Block
(field connections)
accepts wire range
22–12 AWG
Engine Starting
Signals
5amps,32VDC
5ampsresistive28VDC
or 120 V AC max.
TS Auxiliary Contacts
Feature 14A & 14B
10 amps, 32 V DC
10 amps 250 V AC
general purpose
FEATURE 7 closes to start
FEATURE 8 opens to start
Figure 1-2. Connections to engine starting contact
terminal block located on 1600 th rough 3000 amp.
G–design transfer switches.