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GMXFM1D & GMX2FM2D Series
Electronic Time Controls
Application
The GMXFM1D and GMX2FM2D Series are universal electronic time switches
within UL TYPE 1 indoor or UL TYPE 3R outdoor enclosures intended for the
control of lighting, heating, air conditioning, pumps, motors, or general
electrical circuits in residential, commercial, industrial and agricultural facilities.
Basic models are:
Series
Description
GMXFM1D20
1 channel SPDT 20 program electronic
GMXFM1D50
1 channel SPDT 50 program electronic
GMX2FM2D50 2 channel 2 x SPDT 50 programs
Specifications
Switch Rating: SPDT Switch
GMXFM1D Series Switch Ratings:
GMX2FM2D Series Switch Ratings:
N.O. Contact:
N.O./N.C. Contact:
-1/2hp, 120 V ac
-1hp, 240 V ac
-8 A, 24 V dc resistive
-16 A, 277 V ac resistive
-12 A Ballast, 120 V ac
-8 A Ballast, 240 V ac
-720 VA 240 V ac Pilot Duty
-360 VA 120 V ac Pilot Duty
-1000W Tungsten, 240 V ac
-600W Tungsten, 120 V ac
N.C. Contact:
-16 A, 277 V ac resistive
-8 A, 24 V dc Pilot Duty
-360 VA, 120 V ac Pilot Duty
-1/2 hp, 120V ac
-1hp, 240V ac
-16A, 277V ac resistive
-12A Ballast, 120V ac
-8A Ballast, 240V ac
-720 VA 240V ac Pilot Duty
-360 VA 120V ac Pilot duty
-1000W Tungsten, 240V ac
-600W Tungsten, 120V ac
GMXFM1D20
1. Remove 2 screws retaining the interior cover panel and remove panel by
prying out with a thin blade at the top.
2. Select knockouts to be used. Remove the inner (1/2”) knockout by
inserting a screwdriver in the slot and carefully punch knockout loose.
Remove slug. If the 3/4” knockout is required, remove the outer ring with
pliers after removing the 1/2” knockout. Smooth edges with knife if
necessary.
3. Place enclosure in desired mounting location and mark the three mounting
holes.
4. Drill holes for #10 screws, start screws in holes.
5. Place enclosure over screws and tighten screws.
6. Connect conduit hubs to conduit before connecting the hubs to the enclo
sure. After inserting hubs into enclosure, carefully tighten hub lock nut.
Do not over-torque.
7. Wire in accordance with National and Local Codes.
8. Replace interior cover panel and 2 screws.
3 year Reserve (Non-Replaceable Battery)
Environmental Ratings
Ambient Temperature: –14°F to 131°F (-10˚C to 55˚C)
Wiring Connections
Screw clamp terminals for up to AWG #10 wires
120V Timer and Load
Grounding: This enclosure is of plastic construction
and does not require a
ground connection and does not require bonding
in pool applications.
T
Agency Approvals: UL Listed
TO 120V LINE
N
L2
Typical Wiring Diagrams
T
T
1
21
208/240V
Timer,
208/240V
Load
208/240V
Timer
and
Load
208/240V
Timer
and Load
208/240V
Timer
and
Load
T
2
31
T
T
423
543
45
5
1
21
120V
Timer,
24V,
120V,
orLOAD
240VLOAD
Load
120V
Timer
24-240V
120V
Timer
24-240V
120V
Timer
24-240V
LOAD
T
2
31
T
T
423
543
45
5
1
T
This enclosure does not provide grounding between conduits. When using
4 all5 cables together 1
1
non-metallic conduit or cable, connect the ground
of
3
2
2 wires
with a wire nut. When metallic conduit is used,
useCOM
grounding
TIMER
NO NC type bushings TIMER
L1
H
and a jumper wire between each conduit.
TO LOAD TO 208/240V LINE
Installation
Note: For outdoor locations, Raintight or wet location conduit hubs that
comply with requirements of UL 514B (standard for fittings for conduit and
outlet boxes) are to be used.
120V
Timer,
120V
Load
120V
Timer
and Load
120V
Timer
and Load
120V
Timer
and
Load
208/240
21
120V
Two
SpeedFAN
Fan
120V
TWO
SPEED
T
2
31
T
423
543
45
5
TIMER
COM
NO NC
TIMER
COM
NO NC
COM
NO NC
TIMER
NO NC
TIMER
NO NC
TIMER
NO NC
COM
NO COM
NC
COM
NO COM
NC
TIMERTIMER
COM
NO COM
NC
L1 TIMER
H TIMER
L1
H
L1
H
H
H
H
LOAD LOADLOAD
TO
LOAD
TO
208/240V
LINE
TO
120V
LINE
TO
LOAD
TO
LOAD
TO
120V
LINE
TO
208/240V
LINE
TO
120V
LINE
TO
LOAD
TO
120V
LINE
TO
LOAD
208/240V LINE
TO 120V LINE
TO LOAD
TO 120V LINE
TO 24-240V
LINE LINE
TO
24-240V
TO 24-240V
LINE
N
N
N
L2 L2
N
N
L2
N
1
2
TIMER
H
TO 120V LINE
N
3
4
5
COM NO NC
LOW
HIGH
COM
GMXFM1D and GMX2FM2D Series Program Schedules
Prog
ON/OFF
h
m
Day(s)
_____________________________________________________________________________________________________________________________________________________________________________
Ex
On
7 am
30
Mon., Tue., Wed., Thurs, Fri.
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INTERMATIC INCORPORATED Spring
Grove, IL 60081-9698
www.intermatic.com
158--00798
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