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2014

Romex Connectors

       Push in romex connector
Drill 3/4" hole for 1/2" romex connector
Drill 1" hole for 3/4" romex connector
Romex connectors fit knock-outs in electric boxes. Buy at hardware store.

Purpose of romex connector: clamp down on wire to stop movement and protect wire from sharp edges of knock-out hole.

Boxes with built-in clamps do not need romex connector.
Buy:
Romex clamps at Amazon

Join wires inside octagon box

Clamp wires firmly so they cannot be puuled out of box, even if somebody trips over wires.

Often, octogon boxes and wall boxes have built in clamps

Use cable staples to attach wires firmly to solid structure
Octagon box

Metal octagon box

Metal boxes have groved channels at corner for clamping ground wires to metal box
Octagon box

All boxes must be covered.


Electric connections must be inside covered box.
Push wires down.
Make sure wire nuts are not loose
Install box cover
Electric box knock out

Use hammer and screwdriver to remove knock outs

Hit with sharp strike of hammer, and then twist out blank using pliers
Use linesman pliers to remove extra metal for larger hole
Fill unused holes with snap-in plug from electric dept
Use tapered drill bit to make hole anywhere
Plastic enclosure

Drill holes in plastic enclosure:

Drill 3/4" hole for 1/2" romex connector
Drill 1" hole for 3/4" romex connector
Buy:
6x6x4 plastic box:
no pre-drilled holes... must drill holes for romex connections, 1/2" hole for fuseholder, 3/16" holes for bolts to hold contactor, plastic box does not need ground screw connected to box
Cantex 6x6x4 PVC plastic enclosure with cover at Amazon
Thomas and Betts 6x6x4 plastic with cover at Amazon
Bud industries 11x7x5 box without knockouts

More boxes: Resource
6x6x4 enclosures
tapered drill bit

Optional: Tapered drill bit for plastic or metal box

Buy tapered drill/ step drill bit for any size hole
Step drill bits at Amazon
Neiko tapered drill bit 1/4"-1-3/8 holes

Buy electric wiring Book
Black and Decker Complete guide to wiring
More resources;
See inside main breaker box

More links:
Troubleshoot Household electricity

Figure volts amps watts for electric water heater
How to wire tankless electric
How to change water heater temperature using timer
How to change water heater from 240Volt to 120Volt
How to wire thermostats
How to wire water heater for off peak operation

How to twist wire
How to wire Cooper 277
How to wire combo switch-outlet
How to replace 3-speed fan switch

How to wire 3-way switches
How to wire 4-way switches
How to wire TM811 and TM8111 switches
How to wire wall timers
How to wire box timers
How to wire Dayton off-delay timer
How to wire pin timers

How to wire and troubleshoot photo eyes
How to wire switches

Troubleshoot Malibu outdoor lights
Terminals
Select and install wire nuts
Select wire size

Replace breaker
Install subpanel

Electrical formulas
Electricians forum
How to wire GFCI
How to wire GFCI combo

Basic water heater circuit
How to wire water heater for 120Volt
Install old work box

How to drop wire from attic
Romex connector

How to wire 240volt outlets
How to install 3-phase timer
How to wire 3-phase outlets
How to wire 3-phase surge protector
What is 3-phase

How to wire whole house surge protector
How to wire under-counter water heater

See inside main breaker box
Fuseholder
Contactors
How to solder wires
Whole house surge protector
3-phase surge protection
Circuit breakers

Difference between 120 volt and 240 Volt
Difference between 50Hz and 60Hz
How to install electric meter on water heater
How to wire water heater thermostat
How to wire water heater with switches and timers

6x6x4 Enclosures
Intermatic timer enclosures

Electricity leaves power plant What is 3-phase electric: power plant to end user
color code household wire
Wire sizes

Terminals

Wire nuts
Do it yourself
Do it yourself water heater

Electricity from pole to breaker box

Compare all water heater timers
color code household wire
Wire sizes

How to wire off-peak water heater

Gas and electric water heaters 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
Troubleshoot gas water heater
Troubleshoot electric water heater
box timers Compare box timers
programmable timer Compare programmable timers
Countdown timers Compare countdown timers
Compare power packs

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