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ST01C timer controls 240Volt water heater |
30
amp breaker use 10 gauge /  Buy: 10-2 gauge/ 30 amp 10-3/ 30 amp Southwire electric tools |
Yellow
12 gauge 20 amp Yellow/ #12 gauge wire for 20 amp with ground Buy: 12-2 gauge/ 20 amp 12-3/ 20 amp NMB is house wiring UF is underground Rolls of stranded wire |
White
14 gauge 15 amp White/ #14 gauge wire for 15 amp with ground Buy: 14-2 gauge/ 15 amp 14-3/ 15 amp NMB is house wiring UF is underground |
 Buy: Armored cable |
 Southwire armored cable cutter Buy: Rolls of stranded wire |
Stranded wire  Buy: Rolls of stranded wire |
50-60
amp breaker use 6 gauge /  Buy: 6-2 wire Southwire electric tools NMB is house wiring UF is underground |
40-50
amp breaker use 8 gauge / Buy: 8-2 wire Southwire electric tools NMB is house wiring UF is underground |
  Copper ground wire 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 |
 Buy End cutting nippers at Amazon |
  Buy tools: Wire strippers at Amazon Linesman pliers Utility knife at Amazon |
 Buy: Multimeter Electrical testers |
 Timer has 3 wires plus green ground wire |
ST01C timer controls 240Volt water heater No Neutral wire needed Ground wire not shown Buy: Intermatic ST01c timer/ 1 year warranty ST01a almond Intermatic ST01K combination timer DPST contactor with 240V coil Fuseholders at Amazon Contactors Resources: See the whole project and materials list Fuseholder installation Contactors/ what they do Terminals/ how to install ST01 timer/ How to program ST01C More wiring for ST01C Same wiring applies to Intermatic Ei600 All Intermatic timers and manuals |
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 Buy: ST01 / 120-240 volt/ any load/ no neutral Intermatic ST01c timer Intermatic ST01 timer Contactors |
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ST01C timer controls 240Volt water heater Timer does not require neutral Battery operated Can control any voltage Must be fuse-protected 240Volt coil DPDT contactor See materials list and installation Contactor with 240Volt coil At Amazon mens zippered jacket  Use solder or terminals Recommend terminals be soldered |
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Buy:
fuseholder: Buy fuseholder at Amazon Buy fuseholders at Amazon Some fuseholders accept terminal connections, some have solder-only connections. Fuse block has screw terminals. |
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Reverse
dawn-dusk operation to dusk-dawn GE 15312 timer has astronomic function to turn Lights ON at dusk and OFF at Dawn. To reverse operation, connect timer red and blue wires. If you want dawn-to-dusk operation instead of dusk-to-dawn, then connect red wire to blue wire. This action will reverse timer operation. Contactor recommended for all motor loads |
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Override ST01 timer program using air switch,
single-pole switch or another timer. This action reverses ST01 program, so OFF becomes ON, and ON becomes OFF Buy: Contactors |
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3-phase dawn-dusk timer Control 3-phase using ST01 timer Buy: HVAC contactors Inline fuse holders Din rail fuse holder |
 Basic contactor wiring:Trun off breaker so electricity is OFF. Use terminals to connect the smaller wires to line side 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 |
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ST01C timer controls 120Volt
delay-off-timer Activate off-delay timer using push button -or- using ST10 timer Push button, or ST01, activates delay timer. Push button gives momentary on-off to activate delay timer When ST01 turns ON and then OFF, then delay timer activates Delay timer turns Load ON Delay timer begins countdown. When countdown expires, delay timer turns Load Off Buy: 6A855 Solid State timer at Amazon 11-pin plug-in base at Amazon Contactor with 120volt coil ST01 battery-operated timer Resource: 6A855 Manual More off-delay timers |
 ON
Delay/ Off delayIllustration shows ON delay wiring. On delay means the load turns ON after delay period expires. Load remains ON until power is off. Example uses ST01 timer as switch. (Or use Ei600... sme timer with 5-year warranty) ST01 Timer can be set for dusk-dawn. Automatically turns lights ON at night, and off at dusk. ST01 Timer automatically adjusts for seasonal changes. ST01 Timer can be adjusted 20 minutes longer or shorter than actual dusk-dawn However some folks want longer delay before lights turn ON at night How it works: ST01 Timer tunrs ON. AH3 timer receives power. Time delay countdown begins. After delay period expires, light turns ON, and remains ON until ST01 timer turns OFF Cycle repeats next tim the ST01 timer turns ON. Buy: Intermatic ST01 timer  Ei600 timer at Amazon CR2 replacement battery at Amazon Resource: Intermatic ST01 timer and manual How to wire and program ST01 timer How to wire off-delay timers |
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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 |
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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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