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How to install and troubleshoot photo eye
|Check that photo eye
rating matches voltage and wattage of Load
Check that power line is not running under voltage
Check that wiring is correct using diagrams below
General troubleshoot-Troubleshoot photo eye manual/ pdf
Troubleshoot household electricity
How to wire photo eyes
120 Volt photcell wiringPhoto eye control requires Neutral wire to power the internal switch.
When exposed to light, the photo eye turns off internal switch, and cuts power between black hot wire and red wire to light.
When darkness is sensed by photo eye, the switch is turned on and power flows to light through red wire.
Neutral wire completes the circuit.
Read about 120Volt circuit
Intermatic photo controls/ on-line
Intermatic photo controls sell sheet with model numbers
Photo control sell sheet
Do not face photo eye toward direct sun, to avoid damage.
Face photo eye away from outdoor lights, to avoid blinking
Add photocell to outdoor lightsLeave switch turned ON
Buy Tork 3002 208-240V at Amazon
120Volt photo control
208-240 Volt photocell wiring120Volt photo eye can control 240Volt load as long as Neutral wire is present.
Photo eye control requires Neutral wire to power the internal switch. (Or for non-code-compliant solution, connect white wire on photocell to bare ground wire)
240Volt circuit can be turned off by turning off power to either Hot1 or Hot2. This is called turning off 'one leg' in 240V circuit.
12-3 wire or 10-3 wire is needed to provide 2 hot legs and 1 neutral
Read about 240Volt circuit
Larger image of photocell wiring
More illustrationsPhotoeye wiring
Photo controls at Intermatic
K4200 sell sheet 120-277V, 480V, 208-277Volt
K4100 sell sheet all voltages
Search for 208-240 Volt photo control:
K4423M 208-277 Volt photo control at Intermatic
K4423 at Amazon
Buy Tork 3002 mechanism at Amazon
High amp loads/ Motor, multiple bulbsHow to control motor or pump with photo eye
Ordinary Contactor turns pump turns ON at Night.
Use Dayton 5X847 relay to reverse, and turn plump ON in Day
Use illustrated wiring to control pumps or any large amp load that exceeds timer rating.
Example definite purpose contactors
Optional: Add 15 amp busman line fuse to black wire going to photo eye to protect device if amp load of motor exceeds photo eye maximum load rating. See illustration
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Omron LY23 AC Model terminals/ back to front:
7-8 magnet terminals (turned opposite direction from other pins)
5-6 common terminals
3-4 NO normally open terminals (power is off when relay off)
1-2 NC normally closed terminals (power is On when relay is off)
Load rating 7.5 amps AC
900 watts incandescent @ 120V
1800 watts incandescent @ 240V
1/4 Hp motor @ 120V; 1/2 Hp @ 240V
Reverse photo-eye so Load turns ON in daylightTo reverse operation of photo-eye
So Load comes on during daylight hours
photo eye connected to DPDT relay
30 Amp relay x 80% = 24 amp max up to 2880 watt @ 120V or 5600 watt @ 240V
30 amp 10 gauge wire up to 2 Hp @ 50' or 1.5 Hp @ 100' @ 120V See load charts
Use Omron 120volt LY2-AC 8-pin relay for 7.5 amp.
7.5Amp Omron 30Amp DPDT
Omron LY2 at Amazon / Choose 120Volt coil
30 Amp DPDT relay at Amazon
DPDT Packard at Amazon
Omron relay/Page 450 / pdf
Wire sizesSelect correct wire size
How to select and install wire nut
3-phase linkHow to install 3-phase surge protector
|What is 3-phase electric: power plant to end user|
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