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How
to wire photoeye so it turns off 4 hours later 1-2-3-4-5-6-8 hours later Down to the minute, second, or hours |
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 |
Add delay timer to photoeye
circuit Light turns on normally at dusk, then turns off after preset time expires. Set the delay timer to the exact minute, second or hour. Delay timer activates when photeye turns ON, and light turns on normally. When delay period expires, the light turns off, and timer resets to zero,. Timer and light remain OFF until photoeye activates the circuit again next night. Buy: Twin timers at Amazon Sestos twin timer Omron DH48S twin timer Resource: Twin timer manual Omron twin timer manual |
Choose One shot mode Input voltage from 100-240 volt. Some models, 12-24 volt AC-DC input. Choose mode between One shot or Repeat-cycle. Timer has dry NO NC terminals, so you can connect any voltage to switch terminals. Repeat cycle or One shot Mode To set One Shot (also called: on delay, off delay, or countdown) - Apply power to timer. Press MD for 3 seconds. Press MD to choose settings: minute, second, hour. When t,nod appears, select the 4 dashes, then press and hold MD button for 3 seconds to exit Mode. Once you exit Mode, press RES button to set Time A and Time B. To set times, the Lock mode must be OFF. Once you exit Mode, press RES button to set time A and then press MD to set Time B. If seconds are chosen for time period A, then time period B must also be seconds. One shot mode is either On delay or Off delay depending how timer is wired. After the time period expires, the load turns OFF or ON and remains ON or OFF until you reset by momentarily connecting and then disconnecting terminals 4 and 3 with a Normally open push button, or timer, home automation, etc... or reset timer by disconnecting and reconnecting power to timer. You can pause the timer by connecting terminals 2 and 4, or reset timer by momentarily connecting terminals 4 and 3. You can control power to the twin timer using a 7-day timer for example, or another twin timer, home automation device etc. Buy: Twin timers at Amazon Sestos twin timer Omron DH48S twin timer Resource: Twin timer manual Omron twin timer manual Resource: How to wire twin and one-shot timers |
Add 60 minute delay timer to
photoeye
circuit Max on-off timer is 60 minutes for AH3 Light turns on normally at dusk, then turns off after preset time expires. Set the analog delay timer to the approximate minute, second or hour. Delay timer activates when photeye turns ON, and light turns on normally. When delay period expires, the light turns off, and timer resets to zero,. Timer and light remain OFF until photoeye activates the circuit again next night. Illustration shows AH3 delay timer. Also pictured below. Buy from my affiliate links AH3 timers at Amazon st3pf relay Resources: Use off-delay to control recirculation pump Use off delay to control motors |
Timer coil voltage 120V AC. Contacts rated 3 amp at 240 Volt -or- 6 amp at 120 Volt Volts x amps = watts/ 6 amp x 120 volt = 720 watts Max 1/4 HP: bath fans are usually 1/6 Hp or 1/3 Hp. Recirculation pumps 1/25 Hp. 1/3 Hp attic fans are probably to large amp draw for this timer to operate long-term. For long term, keep load amp draw smaller than load rating... or connect timer to contactor |
AH3-3
timer
Can be used as relay, ON-delay, OFF delay, or all 3 at same time. 0-60 minute settings are approximate... experiment to fine tune setting. 8-pin base included with 8 screw terminals. Remove timer from base to attach wires. Recommend tightening screw plates very tight against wire, especially if using stranded wire. Stranded wire can become solid wire by adding solder. Solid wire is not fire hazard. Stranded wire is greater fire hazard when under screw plate. Size: 2-1/2" tall with base included x 1-5/8" x 2" 120 volt off delay timer/ Contacts rate 120-208-240 Volt Rated for all loads incandescent (Tungsten), LED, CFL, resistive, inductive etc Rated 3 amp @ 240 volt -or- 6 amp @ 120 volt/ Up to 1/4 Hp @ 120 Volt 120 volts x 6 amps = 720 watt. Bath fans are OK at 1/6 Hp/ Attic fans can run 1/3 to 1/2 Hp... suggest use contactor to carry load Recirculation pumps are 1/25 Hp and delay timer works fine. Buy from my affiliate links AH3 timers at Amazon Resources: Use off-delay to control recirculation pump Use off delay to control motors Fuseholders Omron H3CR sell sheet and wiring |
DH48S twin timer used as one-shot It is possible to use this timer for one-shot (off-delay) application IF... Let's say you want a one-shot timer that turns ON a light while a machine is operating, and then light remains ON for 55 minutes afterwards before turning OFF. You select Minutes (M) for time A, and set time for 55. Then select Hours (H) for time B, and set for 99 hours. Then as long as the machine-and-light circuit turned ON again before the 99 Hours expires, the timer will function as a one-shot. Another example: You want outdoor light to turn ON normally at dusk using a dusk-dawn photoeye, but then light turns OFF 4 hours later. Select Hours (H) for time A, and set time for 4. Select Hours (H) for time A, and set time for 4. Then select Hours (H) for time B, and set for 99 hours. Since the outdoor light turns ON again before the 99 hour expires, the DH48S will function as one-shot timer. Buy Uxcell DH48S-S twin time Resource: How to wire photoeye so it turns off after 4 hours |
Add several layers of control using twin timer, delay
timer and 24-hour or 7-day timer Image show test wiring Buy Din rails THc15 timer AH3 delay timer Indicator lights How to wire H3CR timer Resources: How to wire delay timer How to wire din rail timers + manuals |
Busman fuse holder/ panel mount/
drill 1/2" hole Some fuseholders accept terminal connections, some have solder-only connections. Fuse blocks have screw terminals. Buy: Panel mount fuse holders at Amazon ANL fuseholder Buy: fast and slow acting fuses: Ceramic fuses at Amazon Fast acting ceramic fuses |
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Din Rail fuse holder/ din rail
mount/ Din rail is surface mount Buy: Din Rail fuse holder Buy: 2T511GA Nema3R enclosure at Amazon 10 amp Relays 10 amp LY2 relays LY3 relay 120 volt LY2 15 amp Din rail timer Din rail Fuseholder Resources: Din rail timers Off Delay timers On delay timers Build 3-phase astronomic timer Build 2-speed timer for pump, motor etc |
How to wire contactors/ relays |
How to wire inline fuseholder |
How to wire delay timers How to wire twin timers |
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Tools DEWALT Black and Decker Stanley SKIL Makita Porter-Cable Bosch Irwin Hand tools Klein hand tools Fluke electrical testing Dremel hobby tools Campbell Hausfeld air powered Tekton automotive Powerbuilt automotive Saws and saw blades |
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Resource: Compare box timers DPDT timers Intermatic Control water heater w/ Z-wave |
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Resource: Intermatic control centers: and parts Digital control centers and parts Tork control centers and parts Subpanels All control centers and parts Enclosures |
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Resource: Programmable timers Countdown timers Off delay timers On delay timers Timer modules Din rail Twin & one-shot Woods Intermatic Tork |
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Recirculation systems |
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