GM40 TERMINAL DESIGNATIONS
GM40 TYPICAL WIRING DIAGRAMS
3
TIMER
120VAC
N
H
T
COM2NO2NC2
COM
NO
NCL2/NL1
LOAD
T
TIMER
120VAC
N
H
T
NO2NC2
NO
NCL2/NL1
COM
COM2
LOAD
#1
T
LOAD
#2
N
TIMER
T
NO2NC2
NO
NC
L2/N
Normally Open
(Dry Contact)
Normally Closed
(Dry Contact)
L1
COM
COM2
Normally Open
(Dry Contact)
Normally Closed
(Dry Contact)
TIMER
240VAC
L2
L1
T
COM2NO2NC2
COM
NO
NCL2/NL1
LOAD
T
Typical Wiring Diagram (120VAC Application)
Controlling One 120VAC Load
Typical Wiring Diagram (120VAC Application)
Controlling Two 120VAC Loads
Typical Wiring Diagram (240VAC Application)
Controlling One 240VAC (Dual Phase) Load
TIMER
277VAC
N
H
T
NO2NC2
NO
NCL2/NL1
COM
COM2
LOAD
#1
LOAD
#2
T
ypical
Wir
ing Diagram (277VAC Application)
Controlling Two 277VAC Loads
If GM40 is used to control a single 120VAC
load, remove jumper wire (L2/N to COM2) and
keep jumper wire (L1 to COM).
If GM40 is used to control two 120VAC loads,
remove jumper wire (L2/N to COM2) and
reposition it to (COM to COM2).
N
ote:
G
M40 is shipped with pre-
installed jumper wires (L1 to COM
and L2/N to COM2). In applica-
tions requiring a “DRY” non ener-
gized contact, remove jumpers as
s
hown.
If GM40 is used to contr
ol a single 240V
AC
load, do not remove jumper wires
(L1 to COM and L2/N to COM2).
If GM40 is used to contr
ol two 277V
AC loads,
remove jumper wire (L2/N to COM2) and
reposition it to (COM to COM2).
Note: Refer to page 1 for pr
oper Input V
oltage DIP Switch selection.
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