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How to wire GE 15136 timer |
| Use only 600 volt wire. Lamp cord, extension cords are not rated 600 volt. Use copper wire only. Aluminum wire is fire risk and should be avoided or installed by professional. 30 amp breaker use 10 gauge / 120-240 volt 30 amp outlet can be installed on 30 amp breaker only/ use 10 gauge wire ... cannot be connected to 15-20-40 amp breaker.  Orange/ #10 gauge wire, with ground ... 30 amp capacity. Safe maximum: 30 x 80% = 24 amps. Buy: 10-2 gauge/ 30 amp 10-3/ 30 amp Southwire electric tools |
Yellow
12 gauge 20 amp 120 volt 20 amp outlet can be installed on 20 amp breaker, but not 15 amp breaker/ use 12 ga wire. ... cannot be connected to 30-40 amp breaker. 1  Yellow/ #12 gauge wire, with ground ... 20 amp capacity. Safe maximum 16 amps. Buy: 12-2 gauge/ 20 amp 12-3/ 20 amp NMB is house wiring UF is underground Rolls of stranded wire HOOK UP Wires |
White
14 gauge 15 amp 120 volt 15 amp outlet, AFCI, GFCI, timer, switch etc can be installed on 15 or 20 amp breaker. Never connect 15 gauge wire to 20-30-40 amp breaker.  White/ #14 gauge wire, with ground ... 15 amp capacity. Safe maximum 12 amps. Buy: 14-2 gauge/ 15 amp 14-3/ 15 amp NMB is house wiring UF is underground |
| 50-60
amp breaker use 6 gauge / 240 volt 50 outlet can be installed on 50 amp breaker only  Buy: 6-2 wire Southwire electric tools NMB is house wiring UF is underground |
40-50
amp breaker use 8 gauge / 240 volt 40 amp outlet can be installed on 40 or 50 amp breaker only  Buy: 8-2 wire Southwire electric tools NMB is house wiring UF is underground |
  Copper ground wire. Every device, load, metal enclosure etc must be grounded. Ground wire must be continuous throughout installation, never switched on-off, never used as a Neutral wire. Generally ... 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 |
 Non metallic flexible cables must carry ground wire, but do not have hazard of short circuit causing injury from shock. Armored steel cable can be used as a grounded connection, and will protect wires from damage. Metal can be energized from an insulation failure. All conduit ...metal, plastic ... flexible and rigid ... must be attached to structure, and attached to enclosures, boxes. Movement, damage and deterioration are major cause of electrical failure. Buy: Non-metallic flexible conduit Power whip Armored cable Southwire armored cable cutter Pull boxes |
 Electrical tools must be insulated. Always best to disconnect power, but insulation failure, lack of proper grounding, grounded neutral, lack of GFCI, out-of-code wiring, generator operating without transfer switch, and other problems still pose a risk to anyone working on electric power ... even when breaker is off. Buy: Electrician tools kits KLEIN TOOLS Tools kits IRWIN tools KNIPEX Telephone cable knife Low Voltage Mounting Bracket for Telephone |
 600 volt 12 ga Stranded wire ot THHN wire is good for conduit with multiple wires ... but stranded cannot be installed under screw terminals on outlets, switches, timers etc without risk ... of heat causing splayed strands ....that come loose ... and begin to arc. Connect stranded to short piece of solid copper wire, and attach solid to screw terminal. Do not solder residential or commercial wiring. Project wire, extension cords, thermostat, bell and automotive wire are not rated for residential or commercial wiring. Only wire maked 600 volt can be used for permanent household wiring. Buy: Southwire 600 volt stranded wire Rolls of stranded wire HOOK UP Wires |
 Protect wiring from damage Use nipper instead of pliers or screwdriver for removing staples (and nails). Do not damage cable or wires inside cable. -Code says: Cable SHALL BE secured without damage to the outer covering. NEC sec. 336-15 Buy End cutting nippers at Amazon |
  Electrically insulated tools When removing insulation from wire, do NOT score or put cuts on surface of copper wire. Doing so increases resistance and heat on wire and creates possible weak point. Buy tools: KLEIN TOOLS Wire strippers at Amazon Electric Wire Stripping Machine Linesman pliers Utility knife at Amazon |
 Multimeters Voltage is tested across two separate wires. Ohms or resistance is tested across both ends of same wire. Amperage is tested along one or two points on same wire. Buy: Analog multimeter Multimeters at Amazon Klein multimeter Electric testers at Amazon Clampmeter for testing amp flow on line |
 GFCI circuit breaker A GFCI circuit breaker will protect all boxes on circuit. Circuit must be grounded. Ground wire must be continuous and connected to each piece of equipment. White wire on circuit breaker must be connected to Neutral busbar inside the breaker panel. Buy GFCI circuit breakers |
Push down 1" wide Push down breaker Plug-in breaker Buy single-pole: Choose from 15 to 60 amp Eaton CL series Siemens 15-60 amp Single-pole tandem breaker Tandem breakers |
Push down 2" wide Push down breaker Plug-in breakers Buy double-pole: Choose from 15 to 125 amp Choose from 15 amp to 200 amp Eaton CL series circuit breaker Siemens circuit breaker Double pole GFCI |
 40 amp 120V-208V-240V-277V Dip switches to select voltage 7-day programmable, 9 on 9 off set points, with countdown and random options3 month power outage back-up Buy 24 hour or 7-day: GE 15136/ 7 day/ 7 programs /40 amp/ outdoor metal box DTU40 At Amazon GE mechanical timer If unavailable: Option 1: Use DTU 40 / same features and wiring Option 2: Use Open frame relay How to wire open frame relay Option 3: Use mechanical timer Mechanical timers Resources: GE 15132 manual How to wire GE 15136 More GE timers and manuals |
 Larger image Permanent ON-OFF override Buy 24 hour/ or 7-day DTU40 At Amazon Resources: DTU40 instruction manual Sell sheet with model numbers DTU40 wiring |
 GM40 series GM40 AV series auto detects voltage 7-day and 24 hour Buy GM40AV 120-208-240-277V at Amazon GM40AVQ w/ back-up battery at Amazon GM40 24 hour at Amazon GM40 7-day at Amazon Resources: Compare all box timers GM40 wiring GM40AV Manual GM40AV sell sheet |
 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 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 |
 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 DEWENWILS brand wifi Wifi power switch WiOn contactor from Amazon GE z-wave contactor Resource: How to wire WiOn for 120 volt and 240 volt GE z-wave manual |
 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 GM40AVE at Intermatic Manuals/Resources: GM40AVE manual GM40AVE sell sheet FM1D 20 setpoint programming FM2D 50 setpoint programming Intermatic timers and manuals |
 40 amp 120V-208V-240V-277V Dip switches to select voltage 24 hour, 15 minute intervals Buy 24 hour: Tork TU timer/ same features/ same wiring GE 15135 24-hour/ 40 amp/ outdoor box at Amazon If unavailable: Replace with Tork TU timer Option 1: Use Intermatic GM40 / same features and wiring Option 2: Use Open frame relay How to wire open frame relay Option 3: Use mechanical 24-hour timer Mechanical timers Resources: 15207 Manual Quick-start guide to wiring More GE timers and manuals GE 15207 wiring |
 Woods discontinued Replace with Tork TU timer Woods 59402 40 amp 120V-208V-240V-277V Select voltage using jumpers 24 hour, 15 minute intervals Buy 24 hour: Woods 59402 timer Resources: 59401 and 59402 manual 59402 sell sheet More Woods timers |
 24 hour mechanical timers Long lasting Skip-a-day option Repairable with widely available parts Resources: Intermatic 24 hour timers Tork box timers Compare all box timers |
 See Close-up
15132 |
 Timer safe for 1 residential water heater. |
15136 Nema3R
indoor-outdoor Discontinued Buy: 15136 with metal outdoor box at Amazon GE 15132/ plastic outdoor box at Amazon Resources: GE 15136 manual (same as 15132 and 15132) Step 1: Turn power off. Check rating plate on water heater, or motor for volts and watts. Set dip switches before applying voltage Remove clear insulator to access wiring. |
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Substitute timer: wiring is
identical to 15136 DTU40/ 120V; 208-240V; 277V/ Automatically detects input voltage/ random mode/ battery backup/ outdoor box Tork 9000N Indoor/ outdoor plastic enclosure 120-240Volt/ 40 amp NO contacts/ 30 amp NC contacts 7 ON-OFF per 7-day week/ choose blocks of days or individual days/ or random function Minimum set time 1 minute Power outage backup Can be wired to control 2 separate loads/ 3-phase loads/ etc Buy DTU40: DTU40 at Amazon Resources: GM40E timer module instructions/ pdf Tork DT series sell sheet Tork DTU40 timer instructions |
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Set
dip switch before
connecting power. Manual says that incorrect dip-switch setting will damage timer. |
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Step
2: Dip switches GE 15087 timer can be used for 120V or 240V water heaters > change dip switches and select voltage. Water heater voltage is on label of each device. Match dip switches to voltage. Resources: Figure Volts Amps Watts Basic 240V water heater circuit |
Use cable connector 1/2" & 3/4" knockouts |
 Terminals:
TIMER
NO NC COM NO2 NC2
COM2
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Step
4: Wiring
features Four basic features inside 15087 1. Dip switches 2. Screw terminals for clock 3. Screw terminals to contactors 4. Contactors/relays that handle on-off switching to water heater  |
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 Larger image More ways to wire for 240Volt |
240 VoltWiring diagram for 240V water heater. Both white and black wires are hot. Power connects to clock, and to COM terminals Use 10 gauge wire for 240V water heater GE 15087 timer is housed in plastic box Ground wire is not connected to box Ground wire travels continuously from breaker box to water heater.  When using black-and-white wires for 240Volt, add tape to white wire. This action will tell next electrician that white wire carries power |
 Larger image More ways to wire for 240Volt |
240 VoltDifferent way to do same wiring shown in first image above using NO and COM terminals in reverse. Why show this variation when manual does not? SPDT timer with dip switches, and dry NO NC contacts can be wired many different ways. There is no ez way to show all options. Resource: More ways to wire for 240Volt Set dip switches BEFORE applying voltage to terminals. Do not spark-test wires across terminals. |
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 Element
rated for 4500 watts @ 240Volt, will consume 25% or 1125 watts @ 120Volt |
Timer
toggles water heater between 120Volt and 240Volt Use SPDT timer to change water heater between 120Volt and 240Volt Use 120Volt at peak-electric price. Water heater recovers slowly with 120Volt, and uses 1/4 power. Use 240Volt when electric prices are lower, and faster recovery is needed. Resources: How to change water heater to 120Volts Off-peak water heater options 9 ways to save with water heater Install electric meter on water heater |
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120-240Volts Use Timer to toggle between appliances 240Volt circuit can be cut off by turning off one hot wire. Put water heater on NC normally open terminal, so water heater is ON all the time, except when timer turns ON, and then circuit to dryer is activated. Resources: Same wiring applies to many timers including Intermatic GM40 & WHQ, Tork DTU40 Other timers can perform same operation such as Intermatic T1905 & T1975 How to wire 240Volt outlets |
 Always check pump voltage and wiring diagram located on nameplate |
120-240Volts GE 15000 series timers control 2-speed pump Low speed is connected to NC terminal, and then pump operates continuously in low speed until timer turns ON. When timer turns ON, High speed turns ON. Diagram applies for both 120V and 240V 2-speed pool pumps. Other timers can be used for 2-speed pool pump: Resources: Tork DTU40, GM40 timer, T106 timer, T1906 timer Pump operates continuously. Install another timer on L2 Hot line to turn pump ON-OFF |
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Change
water heater temperature using GE 15207 timer Same wiring applies to GE 15087- 15132 etc series timers Applies to Tork DTU timer and Intermatic GM40 timer and Intermatic WHQ series 120-240Volts Use timer for two different temperatures on electric water heater. Either upper thermostat and element have power or lower thermostat and element have power. But not both at same time. Install ECO-protected thermostat for lower thermostat. Both upper and lower parts of tank are ECO-protected from overheating Rewire tank so upper and lower parts are separate. Use GM40 timer to switch power between lower and upper parts of tank. Normal operation, the lower thermostat and element receive power and keep tank at temperature set point. Upper thermostat and element have no power. This is called 'redundant' water heater operation. This technique for heating tank more rapidly after cold water first enters tank. When timer activates, power to lower part of tank turns OFF. Power to upper part of tank begins. Upper thermostat is set for higher temperature. Since tank is at regular temperature, the higher setting means upper element will turn ON and begin heating tank to higher set point. Use this technique to heat water very hot for laundry cycle. Disadvantage: The lower part of tank will cool rapidly as new cold water enters tank, so this technique is good for making short-term batches of hot water. How to wire thermostats How electric water heaters work |
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120 VoltWiring diagram for 120V water heater. The black wire is hot, the white wire is neutral. GE 15087 timer is housed in plastic box Ground wire is not connected to box Ground wire travels continuously from breaker box to water heater. |
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120 VoltTimer wired to control under-counter water heater Avoids having to run additional wire to power 1500 watt under-counter water heater. Circuit uses same wire that powers dishwasher. Either dishwasher or water heater can be used, but not both at same time. Set dip switches for 120Volt Resource: How to install under-counter water heater |
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120-208-240 volt 3-phaseExample: High leg deltaTork DTU 3-phase timer 120 or 208 or 240Volt See more 3-phase 
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277-480 volt 3-phaseWire GM40 controls 3-phaseUse 277V 480V contactor or 277V contactor Fused disconnect required on 3-phase and timer wires  How to wire 3-phase timer See more 3-phase |
 Solid copper wire only |
 Larger image Both wires MUST be same gauge Straighten each wire Tighten screw very tight against copper wire |
 Larger image Connect stranded and solid with wire connector and run jumper to screw plate. See example image |
Use wire connector |
 Use push-on wire connectors |
3
wires/ or different gauge wires Join wires with wire connector or push-on connector Run jumper to screw terminal. Buy: Push on wire connectors Red 3P connector (shown) for 10-14 gauge wire Resource: How to select and install wire connector |
  12 Ga |
10 gauge or 12 gauge? 10 gauge is larger/ for 30 amp breaker. 12 gauge is smaller/ for 20 amp breaker 10 gauge wire can have black-white or black-red 12 gauge will have black and white wires Buy short pieces 10 and 12 gauge wire at local box store Compare with your wire. Match color code and amp rating for wire |
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With
120 and 277 Volt
circuits, white wire is always Neutral, and black is Hot Hot wire is always switched on-off. Neutral wire remains connected without switching. With 208 and 240 circuits, both wires are Hot, and both wires carry voltage. Either Hot wire can be switched on-off. Or both Hot wires can be switched on-off. Add black tape when white wire carries voltage (applies to 208 and 240V circuits) |
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 CA3750 has 5 knock-outs 1 on back, 1 on each side and 2 on bottom Keep enclosure door closed Fire safety Always keep enclosure (box) cover closed |
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Use
Wire connectors, or conduit clamps to secure wire to enclosure By code, all wire must be securely attached to enclosure to prevent wire pull-out. Wires or conduit must be secured to structure, so there are no loose wires. Wires inside the enclosure cannot lay over top of connection terminals. Join all ground wires together and cover with wire connector. Push ground wires down and away from connection terminals. 2T2500GA plastic outdoor enclosure has 5 knock outs for 1/2" and 3/4" Wire connectors 1 on back, 1 on each side and 2 on bottom More Intermatic enclosures |
 Contactors/ relays |
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