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How to wire Intermatic GM40 series timer to control DC voltage

Applies to GM40,  GM40AV, GM40AVE, WHQ, GE 1500 series. Tork timers, Woods box timers
GM40 timer
Larger image
Permanent ON-OFF override
GM40 Intermatic WQ timer
40 amp  120V-208V-240V-277V
Dip switches to select voltage
7-day with 15 minute intervals or 24 hour with 1.75 hour intervals
Buy
Buy GM40 24 hour at Amazon
Buy GM40 7-day at Amazon
Buy:
WHQ4     120-208-240-277Volt 24-hour at Amazon
Resources
GM40 instruction manual
Sell sheet with model numbers
How to set analog timers
Intermatic timers and manuals
GM40 timer
Permanent ON-OFF override
 GM40AV
40 amp 120V-208V-240V-277V
Automatically detects voltage
24 hour, 15 minute intervals
Power outage backup option
Buy:
GM40AV       120-208-240-277V at Amazon
GM40AVQ       w/ back-up battery at Amazon

Manuals/ Resource:
GM40AV Manual
GM40AV sell sheet
Intermatic GM40AVE
Larger image
Permanent ON-OFF override
GM40AVE digital
40 amp 120V-208V-240V-277V
Automatically detects voltage
7-day programmable, 20 on 20 off set points
Power outage backup
Buy:
GM40AVE  120-208-240-277Volt at Amazon
GM40AVE at Intermatic

Manuals/Resources:
GM40AVE manual
GM40AVE sell sheet
FM1D 20 setpoint programming
FM2D 50 setpoint programming
Intermatic timers and manuals
woods wion contactor Woods Wifi
30 amp Woods 50054 WiFi contactor
Auto detect voltage/ 120, 208, 240, 277 volt
WiOn contactor connects to app on phone
How to wire wifi
Buy
WiOn contactor from Amazon

Resource:
How to wire WiOn for 120 volt and 240 volt
Woods 59402 timer
Larger image
Permanent ON-OFF override
Woods 59402
40 amp 120V-208V-240V-277V
Select voltage using jumpers
24 hour, 15 minute intervals
Buy:
Woods 59402 timer at Amazon

Manuals/ resources
Woods 59401 and 59402 manual
Woods timers and manuals

GE 15136 timer
GE timers and manuals
GE 15135
40 amp 120V-208V-240V-277V
Dip switches to select voltage
24 hour, 15 minute intervals
Buy:
GE 15135 24-hour/ 40 amp/ outdoor metal box at Amazon
56922 at Amazon

Manuals/ Resources:
GE 15207 manual
How to wire GE indoor 15207
GE 15136 timer
GE timers and manuals
GE 15136 digital
40 amp 120V-208V-240V-277V
Dip switches to select voltage
7-day programmable, 9 on 9 off set points, with countdown and random options
3 month power outage back-up
Buy:
GE 15136/ 7 day/ 7 programs /40 amp/ outdoor metal box

Resources:
GE 15132 manual
How to wire GE 15136
Tork TU universal timer
Larger image
Permanent ON-OFF override
Tork TU series
40 amp 120V-208V-240V-277V
Automatically detects voltage
24 hour 15 minute intervals
Buy:
Tork TU series DPDT/ 120-277V universal timer at Amazon
Tork P1104-M 240Volt SPDT at Amazon
Tork P1104FM 240V SPDT with fireman switch at Amazon
Buy Tork DTU digital timer at Amazon

Manuals/ Resources:
Sell Sheet
TU wiring manual
TU instruction manual
Tork DTU water heater timer
Larger image
Permanent ON-OFF override
Tork DTU digital
40 amp  120V-208V-240V-277V
Automatically detects voltage
Replaces Intermatic GM40E
7-day programmable, 7 on 7 off set points, with random option.
Power outage back-up
Buy:
DTU40 At Amazon

Manuals/ resources
DTU40 instruction manual

GM 40 timer is NOT rated for DC voltage, but can switch 24 DC volt line
Wire GM40 timer to control DC motor:
Use same diagram to control any single-phase voltage.
Buy:
Omron-DC-Power-Relay
Resource:
DC relays

3 phase timer
Larger image
3-phase
Use GM40 to control 3-phase circuit
Most buildings with 3-phase also have 120Volt outlets.
Use 120volt to power timer. Wire timer as shown in illustration directly above.
Timer opens-closes circuit to 3-pole contactor with 120Volt coil.

Resources
See more 3-phase
How to wire GM40 timer
30 amp breaker use 10 gauge /


Buy:
10-2 gauge/ 30 amp
10-3/ 30 amp
Southwire electric tools
Yellow 12 gauge 20 amp


Yellow/ #12 gauge wire for 20 amp
with ground
Buy:
12-2 gauge/ 20 amp
12-3/ 20 amp

NMB is house wiring
UF is underground
Rolls of stranded wire
White 14 gauge 15 amp


White/ #14 gauge wire for 15 amp
with ground
Buy:
14-2 gauge/ 15 amp
14-3/ 15 amp

NMB is house wiring
UF is underground
armored cable
Buy:
Armored cable
Southwire armored cable cutter
Southwire armored cable cutter
Buy:
Rolls of stranded wire

Stranded wire
stranded wire
Buy:
Rolls of stranded wire
50-60 amp breaker use 6 gauge /
6-2 wire
Buy:
6-2 wire
Southwire electric tools
NMB is house wiring
UF is underground
40-50 amp breaker use 8 gauge /
6-2 wire
Buy:
8-2 wire
Southwire electric tools
NMB is house wiring
UF is underground
    
Copper ground wire
Use same size as other wire in circuit

Buy:
12 gauge copper ground wire
Ground wire
Green ground wire
Ground pigtails
Ground rods/ ground clamps at Amazon

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End cutting nippers at Amazon


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box timers Resource:
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Control water heater w/ Z-wave
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