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Override air conditioner using programmable timer
Thermostat timer
air conditioner timer
reduce run time of air conditioner during peak electric
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
6-2 wire
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
6-2 wire
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
armored cable
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
Southwire armored cable cutter
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

Push-on wire connectors in place of twist-on connectors

Buy:
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
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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
multimeter
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
single-pole breaker
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
double-pole breaker
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
Twin timer

Twin timer

Twin timer lets you run air conditioner for short duration each hour. The repeat cycle timer lets you keep home or building temperature moderated, and use less electricity during peak electric prices.
.
PV shows the time left in the count up for Mode B... so there is .78 seconds left before it switches to Mode A
SV shows 2.99 ... which is the set time I choose for Mode B
When 2.99 seconds ends, Mode A set time will display.
Image shows the Inkbird twin timer.

Use this timer to limit air conditioner run time
twin timerBuy:
Twin timers at Amazon
Sestos twin timer
Omron DH48S twin timers
Resource:
Twin timer manual
Omron twin timer manual
       LY2 terminals Buy
Omron LY2
LY3 relay
LY2 8-pin relays
LY3 11-pin relays for 3 contestants
LY4 14 pin relays for 4 contestants
override air conditioner with timerReduce run-time of air conditioner.
Problem: air conditioner runs too much during peak electric prices. Programmable thermostat for the air conditioner can control peak usage by raising temperature and reducing hours of operation during peak times, but it cannot be programmed to limit actual number of run-time minutes per hour.

This diagram solves problem without compromising integrity of AC motor or equipment.

The din rail timer is programmed so timer is ON during peak hours. Any programmable timer will do the job but din rail timers are available in both 120 and 240 volt models. And 12-24 volt also.

When the din rail  timer is ON, it turns ON a relay, and turns ON a twin timer.
When the din rail timer is OFF, the relay is OFF and the twin timer is OFF.

One of the 24 volt wires from thermostat is connected to the com terminal on one side of relay. When the din rail timer is OFF, the relay is OFF, and the 24 volt thermostat circuit is routed straight to the contactor for normal operation of air conditioner.

When the din rail timer is ON, the relay is ON, and it switches the 24 volt thermostat wire away from contactor and to the Twin timer.
The twin timer is rated for either 120 or 240 volt. Twin timer is designed to turn on-off-on-off-on-off in endless repeat cycle. ON times and OFF times are set independently, and can be any value between .01 second and 99.99 hours.
For example, the twin timer ON time can be set for 40 minutes. And OFF time set for 20 minutes. This limits the operation of air conditioner to 40 minutes.
During the 40 minute period, the twin time routes 24 volts to the air conditioner contactor for normal operation.

After 40 minutes, the twin timer cycles OFF, and then air conditioner cannot turn on for 20 minutes until the twin timer cycles back ON again. When the 20 minutes expires, the twin timer again lets the 24 volts complete circuit to contactor for 40 minutes.
The cycle of 40 ON and 20 OFF continues as long as din rail timer is ON. Set the din rail timer to turn ON during peak electric prices.

Illustration on right shows same diagram except pulling power off the 240 volt AC circuit. Use 10-15 amp inline fuse to protect timer and relay circuit from 50-60 amp air conditioner circuit. Use terminals to connect the smaller wires to contactor. Prevent loose connection and risk of fire: Do not put two different gauge wires under the screw plate on contactor. Never put stranded wire under screw plate.

Buy:
120-240 volt THC15 din rail timer

120 volt LY2 relay
240 volt relay

120-240 volt Twin timer

HVAC contactors
Inline fuse holders
Din rail fuse holder

Resources:
How to wire twin timer
Din rail timers and  manuals
Relays and contactors
Steve says:
I've been able to make the DH48S-S (twin timer) work pretty well for my need of limiting the run time of air conditioning compressor.

My twin timer has a 24VAC coil so it I can hook it directly to the thermostat wires.  Here's how I wired it up:

Yellow (compressor) wire from thermostat connected to terminal 7 (the 24vac coil)
Thermostat common wire to terminal 2 (the 24vac coil)
Jumper from terminal 7 to terminal 8 (continue yellow wire to relay common)
Yellow wire going to air conditioner contactor connects to terminal 5 on twin timer (relay normally closed contact)

Set the time1 to 5 minutes (the "disallowed" off time")
Set the time2 to 10 minutes (the "allowed but limited to x minutes" on time)

So when the thermostat calls for cooling, putting 24 volt power on the yellow wire, it powers the timer and powers the relay, causing air conditioner to run for up to 10 minutes.  If the thermostat stops calling before 10 minutes, the twin timer is un-powered and when it calls again, it starts in the "allowed but limited" t2 at 00 minutes, and allows it to go to 10 minutes.  Beautiful!

I also have a second timer that is set to the peak hours of 3 to 8 pm and it bypasses the twin timer during those times.

Footnote about fuse:
The illustration shown above has the timer ON during regular prices, and OFF during peak pricing. If the fuse blows out, the timer will remain OFF. This means the twin timer will be in control of the AC cycle at all times, until a repair is made.
If the wiring is changed, so timer is OFF during regular price, and ON during peak, then if fuse blows, the AC will run normally even during peak pricing. To make this change in wiring, simply switch wires on terminals 3 and 5.
Use a 10 amp fuse to protect timer circuit. A fuse will protect the entire length of wire and the timers. The fuses rarely if ever blow out or have a problem.

Buy
Uxcell DH48S-S twin timer
24 volt twin timer
24 volt din rail timer
Buy fuseholders
Fuse blocks at Amazon
Electrical terminals
Din rail fuseholder
10 x 38 mm fuse

Resource:
DH48S twin timer manual
24 volt timers
contactor Basic contactor wiring:
Pull out the disconnect so electricity is OFF. Open wiring compartment on air conditioner. Use terminals to connect the smaller wires to line side of contactor. A capacitor will be connected to Load side of contactor.
Use 10-15 amp inline fuse on one of the two wires to protect timer and relay circuit from 50-60 amp air conditioner circuit. The fuse will protect entire length of circuit.
Prevent loose connection and risk of fire: Do not put two different gauge wires under the screw plate on contactor. Never put stranded wire under screw plate.

Buy:
HVAC contactors
Inline fuse holders
Din rail fuse holder

Resources:
Relays and contactors

Larger image
Intermatic enclosure 9-3 ⁄8" x 5-1 ⁄2" x 3-5 ⁄8"
Nema 3R outdoor Enclosure:
Nema3R Enclosures can be used for outside installation:
Image on left shows din rail timer, din rail fuseholder, and 3 relays mounted on the rail. Twin timer not shown.
Estimated height of twin timer on the rail is 4-1/2" tall. The box on left: twin timer is too tall and would be attached to side of enclosure.
Off-delay timers will fit in 3-5/8" space if mounted directly to metal box, and not din rail.

Bud Industries boxThe control box circuit shown on left is used for outdoor lighting. Twin timer and base are not shown.

Buy:
2T511GA Intermatic
Nema3R enclosures
Hoffman 8 x 6 x 4 Nema 3R
Hoffman 6x6x6
Bud industries 11x7x5 box without knockouts
Din rail
Resource:
Compare enclosures
Siemens volotage monitor
Larger image
Siemens Single-phase Voltage monitor
Rated 24-240 volt AC
Why use voltage monitor?
The problems of low voltage and phase fluctuation (lower voltage on one wire) do not affect resistance loads like light bubs or electric water heater, except to make them burn at dimmer capacity.
However low voltage and phase fluctuations do affect inductive loads like contactors, relays, motors, pumps, HVAC causing problems such as chatter on contactors and relays, and lower rotation speed on motor, causing higher temperatures, and burning out the motor or shortening motor lifespan.

Buy:
Single phase monitor

Resource:
How to wire phase monitors
Larger image
Toggle between two heat pumps
Strategy so both heat pumps are not operating same time. Saves wear and tear on main breaker, reduces overall electric consumption, might save having to upgrade service panel.
Main breaker stress test

Outdoor compressor has to turn on before unit will heat or cool.
The outdoor unit is activated when 24 volt thermostat wires send 24 V AC to a contactor located on each outdoor unit.
The contactor receives 240 volt power at all times ... and will be HOT ... unless breaker is OFF. The thermostat does not turn power off to the contactor ... only the circuit breaker can turn off 240 volt power.
Open the access panel on side of heat pump unit and see the contactor ... it will have a start capacitor connected to one leg of the hot wires going to the compressor motor.
The thermostat wires connect to sides of contactor, and activate the 24 volt coil that turns contactor ON-OFF ... which turns heat pump unit ON-OFF.
Select one of the 2 thermostat wires, and wire circuit as shown in illustration.  You need 120 volt line with Hot and Neutral, the ink bird twin timer, an LY2 relay, length of thermostat wire, twist on wire connectors, and ordinary 15 amp 3-way switch.
Sheathed thermostat wire is rated for outdoor use, and is sun resistant, unsheathed bell wire is not rated for outdoor.
18-2 thermostat wireAll connections must be made inside electrically-rated enclosure. The relay will work in any temperature, while twin timer would be susceptible to temperature extremes.
Buy:
18-2 Thermostat wire
20-2 bell wire
Indoor outdoor cable for doorbell/ phone etc
Phone cable for outdoors/ underground
Buy:
Twin timer
Omron LY2
Fiberglasss enclosures
Tapered drill bit 1/4"-1-3/8 holes
Fish bit

General operation:
When 3 way switch is in one position, then the two heat pumps cannot turn ON at same time. Instead their schedule is controlled by how many hours you set on twin timer. For example set timer for 1 hour and during that period, heat pump1 can turn on any time thermostat calls for heat-cool .... then after that hour, heat pump2 is free to turn ON for 1 hour (or whatever time you set). Basically, you are just turning off the thermostat to each unit.
Back and forth, endless cycling between heat pumps until 3-way switch is moved to other position ... after which, ordinary operation is restored and both heat pumps can turn ON at same time whenever thermostats call for heat-cool.
ST01 timerOverride thermostat?
Add more programs to control furnace?
Use ST01 without any voltage, or with any voltage
I cannot say exactly which HVAC or thermostat wires you connect this to ../ for example the AC control board sends 24 volts to a contactor ... you can limit the times when the AC runs by cutting one of the wires, and insert ST01 as shown., but a programmable thermostat can do same job.

It might be possible to override the thermostat operation and turn power ON when thermostat calls for off.

The wire to ST10 does not need power, or it can have 12-24 AC/DC  or 120, 208, 240, 277 volt AC.

Timer red wire is capped. ST01 is programmable, or dusk-dawn timer. Dusk-dawn means timer is ON at night. Choose up to 6 on-off programs, or choose dusk-dawn. (either-or, not both)
If you connect timer red and blue wires together, then timer programming is reversed, so timer is ON in day and OFF at night, or timed programs are inverted.
You can simply cut a control wire, and insert ST01 as shown.
Timer red wire is capped.
If you connect timer red and blue wires, then timer programming is reversed... THIS means what?
ST01 is programmable, or dusk-dawn timer.Choose up to 6 on-off programs, or choose dusk-dawn. (either-or, not both) Dusk-dawn means timer is ON at night.
Use ST01 without any voltage, or with any voltage
Buy:
Intermatic ST01c timer at Amazon/ 1 year warranty
ST01C           
          Larger image             

CR2 battery  ST01 uses CR2 battery
Why can ST01 and Ei600 timers operate without voltage or control any voltage? Including 24 Volt AC/ DC or 120-208-240-277 volts

Because the timer is battery-operated. Battery lasts 2-3 years.
Because the timer does not need to be connected to 120 Volt AC or 240 Volt AC power to operate. Just the battery is needed
Timer can be located inside electric box, anywhere outdoors-or-indoors.

Buy ST01C white, ST01AC almond:
Intermatic ST01c timer/ 1 year warranty
ST01a almond

Ei600 5-year warranty timer at Amazon
CR2 replacement battery at Amazon

Resources:
How to program and wire ST01 timer
Use ST01 as 24 volt photoeye
Load ratings for Intermatic timers/ pdf
Load rating for ST01 timer: 120V ac, 6A, 208-277V ac; DC Loads 4A 12V dc, 2A 28V dc; Motors 1HP 120VAC, 2HP
240V ac, Ballast 16A 120V ac, 208-277V ac; Resistive 20A 120-277Vac.
Sellers of these products often don't know the numbers

ST01C is white, and ST01AC is almond... so if the seller is showing ST01, then timer is probably white.
http://waterheatertimer.org/pdf/067-ST01C-E1020.pdf

This is a very unique timer... can be used for many applications... motor control, photoeye, reverse photoeye, solar controller, HVAC controller, override any hardwired timer, stop doorbell from ringing certain times or day or all night
ST01 timer
Red-Blue-Black-green wires
LED display is not illuminated
How to wire ST01 timer
Connect 24 V AC to black wire
Connect Load to Blue wire
Cap off Red wire (red and blue connected, reverses timer programming)

Resource:
How to program and wire ST01 timer
Test ST01 timer
Testing the ST01 timer
Other uses for ST01 timer:
ST01 timer controls water heater or any 240 volt load
Reverse ST01 using Intermatic air switch   / Resource: Intermatic air switches
Use ST01C for 4-way timer
ST01 24 volt DC photoeye
Convert single-pole switch into 3-way switch using ST01/ Resource: How to add a switch   How to add 3-way switch
Use battery-operated ST01 timer for any voltage, or requires no voltage to operate, 24-hour, or 7-day, or dawn-dusk, or dusk-dawn,
Add a 3-way switch, or 3-way switch, or 4-way switch, used in place of photoeye, reverse photoeye, control 24 volt DC, turn off 12 volt doorbell when baby is sleeping, control motor load, control 3-phase, interface with delay timer

CN101A timer wiring
Larger image/ amico timer with dust cover

dust cover for amico timer
Dust cover
CN101 wiringCN101A timer
Amico panel mount timers
24 volt AC timer
7 day 17 on-off settings
To override thermostat.... Connect 24 VDC power to timer terminals located on right side
Connect thermostat wire to switch terminals located on left side....

Buy from my associate links:
24 volt AC timer
Amico 120 volt 7-day timer
12 Volt/ 16 amp/ DC timer at Amazon
24 Volt/ 16 amp/  DC timer at Amazon
Dust cover for Amico timers at Amazon
Amico timers at Amazon
Transformer: 120-240 Volt to selectable DC voltage

Resources:
CN101A/ amico timer manual/ pdf with wiring
How to wire amico timer
Terminals
ST01 timer ST01 timer can control motor loads/ no neutral wire needed
I recommend using relay for switch heavy-amp loads such as motors/ as shown in illustrations below
Buy ST01C white, ST01AC almond:
Intermatic ST01c timer/ 1 year warranty
ST01a almond

Ei600 5-year warranty timer at Amazon
CR2 replacement battery at Amazon
Timer for motor 24 volt timer for motor
Buy ST01C white, ST01AC almond:
Intermatic ST01c/ 1 year warranty
Intermatic ST01 timer
CR2 replacement battery at Amazon

Buy:
24 volt transformer
24 volt AC coil/ 30 amp relay at Amazon
24 Volt AC coil/ 40 amp contacts
24 Volt AC coil/ 40 amp contacts
ST01 timer controls motor ST01 timer controls 120 volt motor
Install 10-15 amp line fuse to protect timer from overamp
Buy ST01C white, ST01AC almond:
Intermatic ST01c timer at Amazon/ 1 year warranty
Intermatic ST01 timer
Ei600 5-year warranty timer at Amazon
CR2 replacement battery at Amazon

Buy relay:
120 volt coil/ SPST 30 amp relay
120 volt coil/ SPST 30 amp relay
120 volt coil/ SPDT 30 amp relay
12 amp DPDT Packard at Amazon
40 Amp DPDT relay at Amazon

Busman HKP-HH fuse holder Inline fuseholder
Buy inline fuseholder/ fuse block/ and fuse:
Panel mount fuse holders at Amazon
ANL fuseholder
Buy fuseholders at Amazon
Fuse blocks at Amazon
Din rail fuseholder
10 x 38 mm fuse
Electrical terminals 
Timer for motor Enclosed relays/ Functional devices
Requires neutral wire
Install 10-15 amp line fuse to protect timer from overamp
Functional relays, or enclosed relays shown here, are not as heavy-duty as open frame relays shown below.
Buy:
Enclosed relays at Amazon
120 volt coil/30 amp DPST


Heavy-duty open frame relay
Optional box and cover for Magnecraft
Recommend this relay for motors exceeding 120 volt 1 HP/ 240 volt 2 HP
Magnecraft/ Siemens relay with NO NC terminals 120 volt coil or 24 volt coil etc
These relay are heavy-duty and best for frequent-operation, long term control of motor
Buy from my affiliate links
Magnecraft box and cover
Siemens power relays
Schneider W199 relay
NTE open frame relays
Packard DPDT fan relay
Tyco open frame relay
Contactors/ reliable for heavy amp loads
15 amp Relays for loads up to 10 amps

Resources:
Open frame wiring
How to reverse motor with switch
Difference between contactor and relay
Relays for DC motors and solar panels
Control motor with 2 switches
Start two motors at different times
  DPDT Switching relay
12 amps @ 120 volt, 6 amps @ 208-240 volt/ 3/4 HP
White Rodgers, Packard, Emerson, Edgewater, Mars, Honeywell, Jard, RBM etc
Buy:
Packard DPDT fan relay

Resource
Mars-relay.pdf
mars-general-purpose-switching-relay.pdf
Packard-switching-relay.pdf
Intermatic PB 800 series
Intermatic PB 800 series
Timer Modules
24-hour modules with trippers
Buy
120Volt at Amazon
240Volt at Amazon
Replacement trippers
Resources
Spa Module timers and manuals
Modules with segments
Buy:
120V at Amazon
240V at Amazon
Resources
Intermatic PB800-900 series
Intermatic timer modules
Wiring for timer modules shown on left

These modular timers have 4 terminals
2 terminals for clock motor
120V or 240V models

2 independent terminals for load
Any voltage, 120, 240, etc

Connect Hot from breaker to one of the clock terminals and to one of the load terminals,
Connect hot to load to other load terminals.
Connect neutral from breaker and neutral from load to other clock terminal.
wireless light kit
Larger image
B003OYJRB2
Leviton WSSLT-10 SLT Circuit Interlock Transmitter, 120VAC, White

Skylink anywhere wall switch
Buy:
Transmitter switch at Amazon
Receiver at Amazon
Resource:
Skylink wall switch manual
Skylink on-off-dim module manual
Skylink on-off module manual
Product information at Leviton
Aprilaire relay aprilaire relayWhen amp exceeds set point, the relay activates 120 volt circuit.
Use relay to control contactor when load exceeds 50 watts
Use to activate duct booster fan
Take off bracket and install bracket around a control wire that carries amperage.
 When amperage flows across line, the Aprilaire relay activates... and closes circuit going to 120 Volt load... such as indicator light... or another relay etc... the indicator light turns ON.
Buy
Aprilaire relay at Amazon
Current sensing relays

Resource:
Aprilaire manual .pdf
main breaker box
Larger image
See inside main breaker box
Electricity leaves power plant What is 3-phase electric: power plant to end user
How to wire 3-phase timer
Support the economy:
Buy water heaters from my associate links:

50 gallon Gas water heaters at Amazon
40 gallon gas water heaters at Amazon
50 gallon Electric water heaters at Amazon
40 gallon electric water heaters at Amazon
Hybrid / heat pump/ water heaters at Amazon

Resources:
How to install gas water heater
How to install electric water heater
Troubleshoot gas water heater
Troubleshoot electric water heater
Point of use water heaters
Resources:
Troubleshoot Gas valves with manuals
Icon gas valve

How to replace water heater element Waste King disposal
How to wire tankless electric


Install point of use water heater
Titan tankless

Contactors/ relays
Install and troubleshoot garbage disposal Waste King disposal
Programmable timers

Woods timers
surge protection
Anode rods anode rods
Recirculation system

Tankless recirculation
Point of use water heater
Type 1 and type 2 surge protection surge protection
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Industrial electric

Industrial supplies

Tools and home improvement

Home and garden

Hayward pool
Pentair pool

Southwire electric
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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
box timers Resource:
Compare box timers
DPDT timers
Intermatic
Control water heater w/ Z-wave
Intermatic control centers Resource:
Intermatic control centers: and parts
Digital control centers and parts
Tork control centers and parts
Subpanels
All control centers and parts
Enclosures
programmable timer Resource:
Programmable timers
Countdown timers
Off delay timers
On delay timers
Timer modules
Din rail
Twin & one-shot
Woods
Intermatic
Tork
Low voltage power packs Recirculation systems
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