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Resource: Safe electric wiring
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Can
timer be wired with dimmer Resource: Safe electric wiring |
| 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 |
Push-on wire connectors in place of twist-on connectorsBuy:Push on wire connectors Amazon Red 3P connector for 10-14 gauge wire Lever connectors for stranded wire at Amazon 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 |
Anthony
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| Anthony: The timer that I was looking at was the Intermatic In-Wall Timer, model Ei500. I have not chosen a dimmer yet but I will make sure that both are rated for the same voltage and load when I do make my purchase. Buy: Ei500 white color at Amazon Ei500 white or ivory color at Amazon LED bulbs at Amazon |
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Answer: good choice 120 volt, 15 amp Ei500 is solid household timer, and requires neutral wire. Ei500 will work fine with dimmer As long as dimmer is located between the timer and the light bulb |
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Ei500
7-day 7 programs each week/ single-pole/ any type load/ LED/
CFL /
ballast / 1/4 hp motor Single-pole timer 7-day or 24-hour digital timer with 7 ON and 7 OFF operations Incandescent, LED, CFL, ballast, 1/4 Hp motor 8 amp, 1000 watt, 1/4 Hp. Neutral required, internal rechargeable battery Buy: Ei500 white color at Amazon Ei500 white or ivory color at Amazon LED bulbs at Amazon Resources: Ei500 manual Sell sheet with model numbers Sell sheet with models and wiring |
| Don't
confuse model numbers on timers: Intermatic Ei500 shown above is different from Intermatic EJ500. The lighter-weight, battery-operated EJ500 does not need neutral wire, but is rated for incandescent only and not LED, CFL or fluorescent See resource: Intermatic timers |
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 Westek |
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 Honeywell |
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 Sylvania |
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Ei500 7-day 7 programs each week/ single-pole/ any type load/ CFL / ballast / 1/4 hp motorSingle-pole timer7-day or 24-hour digital timer with 7 ON and 7 OFF operations Incandescent, CFL, ballast, 1/4 Hp motor 8 amp, 1000 watt, 1/4 Hp. Neutral required, internal rechargeable battery Install 120 volt dimmer between 120 volt timer and 120 volt Load Typical indoor wall timer is wired as shown Neutral wire required  Buy Ei500 white color at Amazon Ei500 white or ivory color at Amazon LED bulbs at Amazon Resources: Compare all programmable timers All Intermatic timers |
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Old school wiring ... No Neutral in boxThen use ST01 battery-operated timer1) Neutral wires are white wires, covered with wire connector, and pushed to back of box.See Inside Main Breaker Box 2) Old school wiring? No neutral wire available in box? ST01 battery-operated timer shown in section below might be best option. Buy. no neutral/ single-pole or 3-way: Intermatic ST01c See illustrations below 3) Dimmers rated more than 600 watts usually require neutral wire. Exception rotary dimmer 4) Check dimmer load ratings .... Less than 600 watt without neutral are often rated incandescent-only, not LED or CFL 5) High wattage dimmers, full 1000-1500 watt... Can get very warm to touch, might have aluminum fins on the faceplate,,, Amp draw for these dimmers can exceed timer ratings... timer will burn out sooner. 6) Dimmers can be warm to touch... because they consume excess power that causes light to dim.... Dimmers should never be hot Heat from dimmers might shorten life of timer located inside same box.... but Hot dimmer should be replaced. Change light bulbs to LED and change dimmer to LED rated dimmer. 7) Household timers and switches and outlets etc should never feel warm or hot Simple electric safety overview: Resources Troubleshoot-household-electricity #heat |
  All Intermatic timers |
ST01C
7-day programmable -or dawn-dusk/ battery operated no neutral required
/ single-pole or 3-way/ CFL, fluorescent lights etc/ control any
voltage load/ 12-24-120-240-277Volt / motor loads up to 120 volt 1 Hp/
240V 2 Hp Or Ei600 / same as ST01 except 5 yr warranty instead of 1 yr warranty /astronomic or programmable/ single-pole 3-way/ 1 yr warranty/ No neutral/ uses CR2 battery Programmable or Astronomic dawn-dusk/ 6 ON and 6 OFF settings per 7-day week Incandescent, CFL, LED, motors, ballast, 2 amp 12-28 Volt DC loads/ 24, 120, 240, 277 Volt AC loads Permanent override/ Power outage carryover/ No loss of memory in power outage or battery change Buy. no neutral/ single-pole or 3-way: Intermatic ST01c timer/ 1 year warranty ST01a almond Intermatic ST01K combination timer Ei600/ 5-year warranty timer CR2 replacement battery LED bulbs Manuals/ resources: ST01C manual Compare all programmable timers |
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