INSTALLATION (continued)
1 --- 2
Controller Ground
A grounding wiremust 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 provides proper grounding which does not
rely upon the door hinges.
Harnesses
The transfer switch is connected to the left side of the
control panel by a plug-in harness (two plugs).
Auxiliary Circuits
Connect auxiliary circuitwires to appropriate terminals
onthe transfer switch. Notethe control features that are
furnished on this switch. Make the necessary auxiliary
connectionsby referring to the Wiring Diagram.
Engine Starting Contacts
The engine control contact connections (if used) are
located on the t ransfer switch. Connect signal wi res to
appropriate terminalsas specified in Table B and shown
in Figures 1–1 and 1–2. See the wiring diagram too.
TableB. Engine start connections
When normal
source fails
Ter m i n a l s on
transfer switch
contact closes TB1 and TB2
contact opens TB1 and TB3
COMMON
FEATURE7
closesto start
FEATURE8
opensto start
COMMON
FEATURE14B
closedon emergency
FEATURE14A
closedon normal
COMMON
FEATURE14BA
closedon emergency
FEATURE14AA
closedon normal
EngineStarting
Signals
5amps,32VDC
5ampsresistive28VDC
or120 V AC max.
TSAuxiliary Contacts
Feature14A & 14B
10amps, 32 V DC
10amps 250 V AC
general purpose
Optional
TSAuxiliary Contacts
Feature14AA & 14BA
10amps, 32 V DC
10amps 250 V AC
generalpurpose
left side of transfer switch
Figure 1-1. Connections to engine startingcontact
terminal block for 150 through 1200 amp.
J & H–design transfer switches.
TB TerminalBlock
(field connections)
accepts wire range
22–12 AWG
EngineStarting
Signals
5amps,32VDC
5ampsresistive28VDC
or120 V AC max.
TSAuxiliary Contacts
Feature14A & 14B
10amps, 32 V DC
10amps 250 V AC
generalpurpose
FEATURE 7
closes to start
FEATURE 8
opens to start
Figure 1-2. Connections to engine startingcontact
terminal block located on 1600 through 3000 amp.
G–design transfer switches.