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How to wire T105 timer/ 40 amp/ 120 volt/ SPDT
Applies to T105, T175
Resource: Safe electric wiring
water heater timer
T105 / 240 Volt / NO NC
Buy
T105 at Amazon
Resource
T105 series models/ manuals
T175 timer
T175/ With day skipper
Buy
T175 w/ day skipper
Resource
T175 series models/ manuals

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
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
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:
1000 volt Tool kit
Electrician tools kits
KLEIN TOOLS
Tools kits
IRWIN tools
KNIPEX

Telephone cable knife
Low Voltage Mounting Bracket for Telephone

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
Lever switchWeatherproof lever switch on outdoor lights
Safely operate outdoor toggle switch
Replaces outdoor cover
Install over top of ordinary switch
Works with single-pole, double-pole, 3PST, 3-way, 4-way switches etc
Use weatherproof box for outdoor
Can be used indoor or outdoor

Buy:
Cantex lever switch
Leviton lever switch
Outdoor lever switches at Amazon

Resource
Cantex-toggle-switch-covers.pdf
Cantex-PVC-junction-boxes.pdf
Weatherproof wire connector

Weatherproof wire connector

Connector cavity is full of silicone
Built-in cover keeps silicone in place
Protect from water, dust etc
Buy from my affiliate links
Weatherproof size 14 to 6 Amazon
Weatherproof size 22 to 8 Amazon

Resource
How to select and install connectors

Multimeter
Test for breaks in wire/ Test for voltage
Most appliance require 80% rated voltage to function correctly
Buy
Analog multimeter
Multimeters at Amazon
Klein multimeter
Electric testers at Amazon
Clampmeter for testing amp flow on line
Resource:
How to test and replace element
How to test thermocouple
Element tests for 120 volts
How to test wire

Safety when testing wires:
Never touch wet or previously flooded appliance.
Never stand on wet surface when working on electric.
Never stand on bare soil, put down dry boards.
Tape tester leads to wood sticks to keep hands away from power.
Use non-contact voltage tester before touching wires.
Never touch or lean into any made of metal.
Remove metal objects from pockets.
Do not use oxygen or fuel accelerants in same room as electrical repairs

Resource:
Basic house wiring
TerminalsWeatherproof outlet cover
Safely use extension cord with weather resistant cover

Buy:
Outlet covers
Weatherproof box
For adding outdoor wiring
Drill through back of indoor box, and through wall to install new outdoor outlet.

Buy
Hubbell Bell PVC box
Hubbell Bell aluminum box

Wiring for T105 starts here 

120 volt

Wire Intermatic T105 timer
Larger image
Illustration from product manual expanded to show complete wiring
Buy:
T105 indoor timer

Disconnect power
Insulation failure, lack of proper grounding, lack of GFCI, out-of-code wiring, generator operating without transfer switch, and other problems pose a risk to anyone working on electric power.
Buy:
Electrician tools kits
Klein tools
Tools kits
Wire Intermatic T105 timer
Larger image

T-105 timer: 2-speed 120 Volt pump

Timer acts as a high-low switch for continuous-running 2-speed pumps.
T105 timer does not turn pump off.

Use P1353 for 2-speed pumps that turn off

>Or use 2 timers, and wire first timer before T106.
Typically, a T101 timer would be integrated into circuit for that task.

Resources
T105 manual
T175 manual
T100 series parts
Wire Intermatic T105 timer

T-105 timer 120 volt/ Toggle between 2 different loads

T105 timer has NO NC terminals
When timer is OFF, then NC Load 2 is ON, and NO Load 1 is OFF
When timer is ON, the reverse happens, and Load 2 is OFF, and Load 1 is ON

Use this configuration for 2-speed 120Volt pool pump that runs continuously.
Use NO NC connections to change between High and Low speed

For 240Volt application,.buy T106 timer.
Or replace WG1570 clock motor with WG1573
Buy: WG1573 240 volt clock motor
Wire Intermatic T105 timer
Larger image

T-105 timer: Single-pole Normally Closed

This lets you operate any 120 volt load using T105 timer.
T105 acts like ordinary ON-OFF timer for any 120 volt load up to 40 amps.

Normally Closed means the circuit is turned ON, and power is available to run Load.
When timer activates, the circuit is turned OFF

Move clock motor wires from A-3 to A-1

Other timers and options
Intermatic P1353 timer
See P1353 manual and wiring

2-speed alternative timer

Buy:
P1353 timer at Amazon
PE153 at Amazon

Resources:
P1353 manuals and wiring
For 2-speed pumps that do not run continuously, install P1353 timer.
Snaps into any Intermatic enclosure
2T2485GA enclosure

Convert indoor timer into outdoor timer:

Buy different enclosure

Buy:
2T2502GA beige plastic Outdoor box at Amazon

Resource
Enclosures
Intermatic GM series

2-speed alternative timer/ 20 amp

Use T1906 and T1975
SPDT with NO NC terminals, For 2-speed pumps and other NO NC applications
15 minute time intervals instead of 1 hour for T106
T1976 has day skipper

Resource:
T1906 and T1976 wiring

Lower amperage 120Volt timers with NO NC terminals:

Resources:
FM1 series
PB series
FMD series
2 speed motor wiring
2-speed motor wiring larger
Resources:
Other 40 Amp timers can control 2-speed pump:

Intermatic GM40
GE 15207
Tork DTU40
Intermatic T1906 20 amp timer


Wiring Tips
Keep wires straight
Use solid copper wire
If wiring terminal  or end of wire are covered with green, use emery board to clean terminal and sandpaper to clean wire.

Insdulation under screw plate
Larger image

Both wires MUST be same gauge
Straighten each wire
If wire is corroded or overheated, clean the end with sandpaper and wipe with cloth.
If wire has been melted, cut back and reattach, or replace wire.
Tighten screw very tight against copper wire


Use wire connector  
Push on wire connectors
Use push-on wire connectors
3 wires/ or different gauge wires
Join wires with wire connector or push-on connector
Run jumper to screw terminal.
Buy:

Red 3P connector (shown) for 10-14 gauge wire
Lever connectors for stranded wire
Fire safety/ Do not put stranded wire under screw plate
Do not install stranded wire under screw.
Problem1: picture shows 2 different gauge wires under screw plate
Problem2: Stranded wire will expand and contract and come loose under screw plate, even if it is the only wire under the screw plate
Attach stranded wire and solid wire with wire connector, and run solid copper jumper wire to screw terminal
Take photo of wires before starting.

Resources:
Timer caught fire
Load ratings for Intermatic timers/ pdf


Larger image
10-3-wire
10-3-wire  12 Ga
10 gauge or 12 gauge?
Compare your wire with short pieces of 10 and 12 gauge wire from local box store

10 gauge for 30 amp breaker.
10 gauge wire can have black-white and sometimes black-red

12 gauge for 20 amp breaker
12 gauge will have black and white wires

Buy:
Southwire romex cable
Resources:
Match color code and amp rating for wire
Basic house wiring
Add black tape when White wire carries voltage (applies to 208 and 240V circuits)
With 120 and 277 Volt circuits, White wire is Neutral, and Black is Hot
With 208 and 240 circuits, both wires are Hot, and both wires carry voltage
Black tape on White wire identifies wire is Hot and not Neutral

Parts/ change voltage by changing clock motor

Repairs etc
Resources:
Close up photos/ maintenance/ repairs
Troubleshoot T100 series timer
Intermatic clock motor
120 and 240 volt replacement Clock motors
Buy:
WG1573 208-277V
WG1570 120V
WG1576 480V
CW190-10 for 24 volt 60 Hz 24V at Intermatic
156T1961A tripper
Trippers
Up to 12 sets trippers can be put on dial
Minimum 1 hour on-off
Buy:

156T1978A T100 series trippers
T-104 timer wired for 480 Volts
Buy:
WG1576 for 60 Hz 480V
Change T104 timer 
by changing clock motor
Intermatic clock motor >>>>> Intermatic clock motor
Buy WG1573 replacement 240 volt for ordinary T104
240 volt clock motor






T-104 timer changed into T104-50
50 Hz timer for use in UK, India etc
WG1574-10D motor 50Hz 208-277V Amazon
T104-50
T-104 timer for 120 Volts
Change T104 timer into 120 volt timer
Buy:
WG1570 for 60 Hz 120V
Move clock motor wires to terminals A and 1
How to wire T103
How to replace Intermatic clock motor
T-104 timer for 24 Volts
CW190-10 for 24 volt 60 Hz 24V at Intermatic
Move clock motor wires to terminals A and 1
Buy T104 240 volt clock motor:
WG1573 208-277V Amazon
124T1952 Insulator
Larger image

124T2411A insulator pk 25
Insulators
Translucent
>124T1948 single pole T101, T102, T105
124T1948 single pole T171, T172, T175
>Buy:
124T1948 at Amazon

Black rigid
124T2411A  rigid
Buy:
At Amazon

Wiring for other T100 series timers
T101B Wiring: How to wire T101, T171 and T101B timer
Applies to T101B with separate wiring terminals
T103 Wiring: How to wire T103 and T173 series timers
T104 Wiring: How to wire T104 timer
Applies to T103, T103R, T103P, T103M, T103PCD82, T173, T173R T173M  see all models
How to wire Intermatic T102: How to wire T102 and T172 series timers
How to wire Intermatic T106 timer: How to wire T106 timer
Nema 3R indoor-outdoor enclosure
To convert to 120V operation, replace WG1573 clock motor with WG1570 clock motor
How to wire Intermatic pool timer: How to wire pool timers

More Intermatic timers

Control centers:

Control centers: + manuals and parts

All control centers and parts
Intermatic enclosures
Intermatic/ Grasslin enclosures
Metal and plastic enclosures
Intermatic sprinkler timers and wiring
Intermatic sprinkler timers
How to wire Sprinkler timers + rain sensor + manuals + buying options
How to connect rain sensor when timer does not have rain terminals
How to Set & Troubleshoot Intermatic sprinkler timer/ pdf

GM40 timer  Intermatic GM40AVE    Woods 59402 timer  Tork DTU water heater timer  \
Multi-function timers and wiring 40 amp
Multi function timers and manuals

Intermatic T1906 timers

T1906-5  T1975-6 heavy duty timers 20 amp
Multi function timers and manuals

           Intermatic ET279 timer    Et70215 timer
ET series digital timers/ 20-30 amp/ 120-277 volt/ multi-channel (same timer controls two circuits with different programming)
ET series timers

MIL72E timer     FM1-timer   MIL72A timer   CN101A timer wiring   Intermatic PB300      
Timer modules/ 16 amp/ 12-240 volt
Timer modules/ 16 amp/ 12 to 240 volt





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Campbell Hausfeld air powered
Tekton automotive

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Saws and saw blades

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