GM40 TERMINAL DESIGNATIONS
GM40 TYPICAL WIRING DIAGRAMS
3
TIMER
120VAC
N
H
T
COM2
NO2
NC2
COM
NO
NC
L2/N
L1
LOAD
T
TIMER
120VAC
N
H
T
NO2
NC2
NO
NC
L2/N
L1
COM
COM2
LOAD
#1
T
LOAD
#2
N
TIMER
T
NO2
NC2
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
COM2
NO2
NC2
COM
NO
NC
L2/N
L1
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
NO2
NC2
NO
NC
L2/N
L1
COM
COM2
LOAD
#1
LOAD
#2
Typical Wiring 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).
Note:
GM40 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
shown.
If GM40 is used to control a single 240VAC
load, do not remove jumper wires
(L1 to COM and L2/N to COM2).
If GM40 is used to control two 277VAC loads,
remove jumper wire (L2/N to COM2) and
reposition it to (COM to COM2).
Note: Refer to page 1 for proper Input Voltage DIP Switch selection.
