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How to override T101 with switch |
| 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 |
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Override
T100 series timer with 40 amp switch T100 series timers are rated 40 amp, 5 HP max Using a 40 amp motor control switch allows you to override any load that the timer successfully controls. Watt or power consumption should appear on rating plate for each Load (motor, fan, lights, appliance etc) Divide watts by the voltage ... in this case, the voltage for T101 is 120 ... so if load consumes 3500 watts divided by 120 volt = 29 amps. This is within the 32 watt safe maximum of any 40 watt switch (safe maximum = 40 amps x 80% = 32 amps) Buy: 40 amp switch with 32 amp safe max Motor switch MS302 30 amp 2-pole switch Buy 30 amp switch with 24 amp safe max: 30 amp motor switch 30 amp 2-pole switch 30 amp industrial grade Leviton 3033 switch 30 amp 3-way switch |
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Override
T100 series timer with pilot light switch/ 15 amp load Timer dial runs continuously as per normal operation Switch turns Load ON when timer is off. Switch cannot turn Load OFF when timer is on Buy T100 series timers Cooper 277 pilot light switch Twist on wire connectors Southwire electric Electricians tool kit Resources: How to wire pilot light switch How to set and operate T100 series timers Trippers and parts for T100 series timers Match breaker and wire size with Load |
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Override T100 series timer with 120-240 volt spring-wound timer/ 20 amp load Rating 2 HP at 120 volt, 1 HP at 240 volt Timer dial runs continuously as per normal operation Spring-wound timer turns Load ON when timer is off. Spring-wound timer cannot turn Load OFF when timer is on Buy T100 series timers Spring-wound countdown timers Resources: Spring-wound countdown timers and manuals All T100 series timers and manuals How to set and operate T100 series timers Trippers and parts for T100 series timers Match breaker and wire size with Load |
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Override
T100 series timer with digital countdown timer/ 15 amp load Timer dial runs continuously as per normal operation Digital countdown timer turns Load ON when timer is off. Digital countdown timer cannot turn Load OFF when timer is on Buy T100 series timers Leviton countdown timers Maxxima countdown timers Intermatic Ei200 series timer Woods 59000 series at Amazon Cooper countdown timers Lutron MA-T51 series at Amazon Tork professional SS series / 120-277 volt Resources: Compare countdown timers/ with manuals How to set and operate T100 series timers Trippers and parts for T100 series timers Match breaker and wire size with Load |
Larger image RC939 transmitter RC613 receiver WH40 or T104 timer |
Override
T104 or WH40 timer with remote control/ Max 15 amp Control 240Volt 3500 watt water heater using Intermatic RC 939 remote control and RC615 120Volt receiver 240Volt circuit can be turned off by turning off 1 hot wire Do not exceed 15 amp rating of RC615, otherwise install RC613RC relay or PT1203M Buy RC939 3-channel radio transmitter at Amazon RC613 receiver at Amazon Resources: Up to 100 feet away RC939 transmitter manual Remote receiver manual Fuseholders In home remote controls |
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Override
T101 using 40 amp contactor and freeze thermostat --A freeze thermostat or freeze switch will turn Load ON when temperature drops below 40°F, and then turn off when temperature rises again. -Low cost way to turn on pool or irrrigation pump or heater etc when freezing temperatures are expected. Note the contactor coil should be 120 volt, or same voltage as timer. -When temperatur drops, then the freeze thermostat completes circuit to the contactor coil. Contactor coil pulls the switching terminals together, and overrides the timer, turning on the Load. -Contactor is approx 2" wide, 2.3" long, and 2.6" tall. -There is generally NOT enough space in the wiring compartment of T101 to add a contactor. The contactor must be installed inside an electrically rated enclosure. Buy: Freeze thermostat Contactor 40 amp 120 Volt coil Packard contactor Mars 2-pole and 3-pole contactors Terminal kit Blue terminals for 16-14 wire Separate enclosure Resources: Enclosures Contactos and contactor wiring |
| T-101B clock motor 120 V Buy: WG1570 for 60 Hz 120 volt Amazon T-101B change to 208-277 Change T101B timer into 240 Volt Buy: WG1573 for 60 Hz 208-277V T-101B change to 480 Volts Change clock motor to WG1573 Buy: WG1576 for 60 Hz 480V at Amazon |
Fix
T101 120 volt timer with replacement clock motor ... or Change
timer into different voltage by changing clock motor
voltage
>>>>>
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T-101B change to 24 Volts CW190-10 for 24 volt 60 Hz 24V at Intermatic T-101B change from 60Hz to 50 Hz WG1571 motor for 50 Hz 120Volt at Intermatic |
 
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Copper
part of wire is completely
covered
Twist-on wire connectors are very reliable, and withstand overamperage and severe conditions of residential electricity. Applies
to wires that are twisted together
Applies to wires that are placed sided-by-side Applies to stranded and solid wires Professional electricians twist size 10-12-14 gauge wires. Larger gauge wires are not twisted together, but joined side by side. Heavy amp wires or large gauge wires are connected side by by side... best is a lug connection. Professional commercial wiring considerations are different than residential wiring in some ways because of higher amperage, more usage, and larger wires etc. Resource How to twist wire |
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 Keep wires straightUse 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. |
 Applies to timers, wifi etc/ info source Intermatic |
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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 |
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: Push on wire connectors at Amazon Red 3P connector (shown) for 10-14 gauge wire Connector assortment Resource: How to select and install wire connector |
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Fire safety/ Do not put stranded
wire under screw plate 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 connector, and run solid copper jumper wire to screw terminal Resources: Timer caught fire Load ratings for Intermatic timers/ pdf |
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Trippers Dial can have 12 sets ON-OFF trippers Buy: 156T1978 trippers Amazon |
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Insulators -Keep insulator over screw terminals to prevent accidental electrocution hazard. Insulator pushes down over two knobs located on timer mechanism below the yellow dial. Translucent 124T1948 single pole T101, T102, T105 124T1948 single pole T171, T172, T175 Buy: 124T1948 at Amazon Black rigid 124T2411A rigid Buy: At Amazon |
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Convert indoor timer into outdoor
timer: Buy different enclosure. Use thumb spring located top inside timer to remove mechanism from enclosure Buy: 2T2502GA beige plastic Outdoor box at Amazon Resource More enclosures |
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Installation tips -Secure wire or conduit to enclosure. All wires, enclosures and conduit must be secured to structure. -Always use solid copper wire under timer screw terminals ... stranded wire can come loose and cause fires. -Keep enclosure door closed to prevent possible fire hazard from spreading. -Keep insulator over screw terminals to prevent accidental electrocution hazard. -Install enclosures away from hazards such as lawn mower or machinery. -Install outdoor boxes in sheltered area if possible and 12" above anticipated snowfall. -For safety, make sure Load is grounded correctly. People often forget to securely join the ground wires inside timer because wire sometimes gets a bit short. Buy extra length of wire from box store. Load must be grounded. Resource: Why you need ground wire |
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Use correct wire and breaker Oversized is OK, undersized is hazard Look at label on load to determined correct size wire and breaker Watts divided by volts = amps If Load is 120 volt, and watts is 1500 = 12.5 amps. Next calculate 80% safe maximum. 20 amp breaker x .80 = 16 amps safe maximum 15 amp breaker x .80 = 12 amps safe maximum The calculation shows that 4500 watt load requires 20 amp breaker and 12 gauge wire up to 150 feet. Longer distance, use larger wire and breaker. Buy from my affiliate links: Southwire cable and tools Resources: Figure volts amps watts Match wire and breaker size |
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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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