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3 phase astronomic timer: |
| 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 |
 600 volt 12 ga Stranded wire ot THHN wire is good for conduit with multiple wires ... but stranded cannot be installed under screw terminals on outlets, switches, timers etc without risk ... of heat causing splayed strands ....that come loose ... and begin to arc. Connect stranded to short piece of solid copper wire, and attach solid to screw terminal. Do not solder residential or commercial wiring. Project wire, extension cords, thermostat, bell and automotive wire are not rated for residential or commercial wiring. Only wire maked 600 volt can be used for permanent household wiring. Buy: Southwire 600 volt stranded wire Rolls of stranded wire 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 |
 3 phase 4-wireUse with 120-208, High leg Delta, 240, 277-480. ST01 battery-operated timer is dusk-dawn programmable timer rated for 12-24 V AC/DC and 120-208-240-277V AC. Not rated for 480, 600 volt. Rated for inductive loads (contactor) Timer powered by CR2 battery/ requires no voltage to operate switching. Cold weather: Battery cannot be exposed to freezing temps beyond 22 days. Cap red wire for dusk-dawn operation. OR connect red and blue timer wires together for reverse dawn-dusk operation. Fuse protects 15 amp timer. Connect power to timer black wire.  Connect load to timer blue wire.Timer turns ON contactor... Contactor controls 3-phase load. For this illustation, select contactor with coil voltage that matches phase voltage. (measured between Hot wire and Neutral). 3-phase wire colors vary. Buy: Intermatic ST01 timer Packard 3-pole contactor Panel mount fuse holders up to 240 volt Din Rail fuse holder up to 380 volt CR2 replacement battery at Amazon Resource: ST01C manual Sell sheet with model numbers |
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 3 phase 3-wireAlternate design without Neutral wire. Use with 120-208, high leg delta, 240 ... but not 277-480 since 2 hot legs would pull 480 volt. Timer not rated for 480, 600 volt. For this illustation, select contactor with coil voltage that matches line voltage (measured across 2 Hot wires). Buy: Intermatic ST01 timer Ei600 5-year warranty timer CR2 replacement battery at Amazon Panel mount fuse holders up to 240 volt Din Rail fuse holder up to 380 volt  |
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 Din rail fuseholderInstall fuse in-line so circuit can be turned on. Multiple fuses and breakers on same circuit are fine. Buy: Din rail fuseholder 10 x 38 mm fuse 14 x 51mm fuseholder and fuse Din rails Buy: Panel mount fuse holders at Amazon Fuse blocks at Amazon Ceramic fuses at Amazon Fast acting ceramic fuses |
Three-phase
4-wire 120-208-240-277 volt Use dusk dawn photo eye. Neutral wire required Note Neutral wire connected to one side of contactor and to photoeye. Fuse required to protect photo eye from over voltage Three wires run to photo eye. Photo eye black connects to Hot Photo eye red connects to Load (contactor) Photo eye white connects to Neutral. For this illustation, select contactor with coil voltage that matches phase voltage. (measured between Hot wire and Neutral). Buy: 120-277 volt photo eye 3-pole 277 volt contactor 3-pole 120 volt coil 208 volt photo eye 3-pole 208 volt contactor 480 volt photo eye 3-pole 480 volt contactor 3-pole conrtactors Panel mount fuse holders up to 240 volt Din Rail fuse holder up to 380 volt |
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 Larger image LCD display is not lighted  All Intermatic timers |
Dusk-dawn
astronomic timer ST01C 7-day/ battery operated no neutral required / single-pole or 3-way Ei600 / same as ST01 except 5 yr warranty instead of 1 yr warranty /astronomic or programmable/ single-pole 3-way/ 1 yr warranty/ No neutral/ uses CR2 battery Programmable or Astronomic dawn-dusk/ 6 ON and 6 OFF settings per 7-day week Incandescent, CFL, LED, motors, ballast, DC loads/ AC and DC loads 24V up to 277Volt. Permanent override/ No loss of memory in power outage or battery change ST01C is white/ ST01AC is almond Use deco wall plate Buy: Intermatic ST01 timer at Amazon CR2 replacement battery at Amazon Resource: Intermatic timers: ST01C & Ei600 More wiring for ST01C + ST01C programming Sell sheet with model numbers 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. |
 Heavy amp loads: 20-90 amps L terminals for Line wires from breaker T terminals for load wires  3-pole definite purpose Contactor sizes approximately: 20-40 amp 3" tall x 2.4" wide 50-60 amp 3.75" tall x 2.7 wide 75-90 amp 4.5' tall x 3.5 wide  Light amp loads: 8-12 amps A1 A2 coil voltage L terminals for Line wires from breaker T terminals for load wires Terminals 13-14 NO / terminals 21-22 NC Other terminals apply to auxiliary blocks Resources: How to wire motor control contactor Difference between contactor and relay How to wire 3-phase DC relays for solar power   |
Buy
3-pole contactors/ AC ratings Buy manufacturer: Packard 3-pole contactor Brah contactors Market Forge contactor Schneider contactor at Amazon Kripal 3-pole contactor/ they email asking which coil voltage Furnas contactor at Amazon Siemens 3-pole contactor Siemens 3RT motor contactor Eaton 3 pole contactor with contact block connection Allen-Bradley 3 pole contactor Migro contactor Fasco 3-pole contactor Mars 2-pole and 3-pole contactors at Amazon By coil voltage and amp rating 3 pole 24Volt coil 40 amp 3-pole 24V coil Packard 50 amp 3-pole 24V coil Mars 60 amp 3-pole 24V coil Packard 75 amp 3-pole 24V coil Mars 75 amp 3-pole 24V coil Norak 3--pole 24 Volt DC coil Siemens 3RT10 up to 460 volt 5 Hp with auxiliary contacts 3-pole 120Volt coil 25 amp 3-pole 120V coil Brah 30 amp 120 volt coil Packard 30 amp 3-pole 120V coil Brah 30 amp 120 volt Mars 30 amp 120 coil Eaton 40 amp 120V coil at Amazon / Packard 50 amp 120v coil Mars 50 amp 3-pole Migro 60 amp 3-pole 120Volt coil Packard 75 amp 3-pole 120V coil Mars 90 amp 3-pole 120 volt coil Square D 100 amp 3-pole Kripal 3 pole 208-240Volt coil 30 amp 3-pole 240V coil 30 amp 208-240 coil Mars 40 amp 208-240 volt Eaton 40 amp 208-240 Mars 50 amp 208-240 V Mars 60 amp 240 volt Mars 60 amp 3-pole 240V coil Mars 90 amp 3-pole 208-240Volt coil Mars 3 pole 277volt coil 3-pole contactors with 277V coil 30 amp 277V coil 50 amp 3-pole 277V coil Mars 60 amp 277V coil Mars 75 amp 277V coil Mars 90 amp 277 V coil Mars 3 pole 480Volt coil 30 amp 480V coil Mars 40 amp 480V coil Mars 50 amp 480V coil Noark 50 amp 480V coil Mars 60 amp 480V coil Mars 75 amp 480V coil Mars 90 amp 480V coil Mars |
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Contact
blocks/ pneumatic timer attachments. Activated by mechanical action of contactor, instead of electric current. On delay timers delay start time./ Once the timer block activates, the countdown begins. When countdown ends, the timer's internal relay activates. Adding timer block, allows the contactor to control additional circuit with time delay.  Buy: Contact blocks at Amazon Auxillary contact block at Amazon LADT2 with 30 second delay Dayton contact block |
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Pull
boxes/ metal
DTSP contactor bolted into a 6x6x4 enclosure using #8-32 bolts Buy: 6x6x4 Metal box: has knock-outs for 1/2 and 3/4" ... must drill 1/2" hole for fuseholder, bolt holes to hold contactor, threaded holes for 10-32 ground screw, metal box must be grounded. Indoor 6x6x4 metal pull box with cover and knock-outs/ Raco Indoor 6x6x4 pull box with knockouts on 4 sides/ Wiegman Indoor 6x6x4 pull box with knockouts on 4 sides/ Hoffman Outdoor 6x6x4 box with bottom knockouts Indoor 6x6x4 metal pull box with cover and knock-outs/ Raco Indoor/ hinged door 10x10 x 6 / Bud Industries Indoor / hinged door/ 6x8x4 box / Bud Industries Bud industries boxes at Amazon Arlington boxes at Amazon |
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Junction
boxes/ Plastic and metal Buy: 6x6x4 plastic box: no pre-drilled holes... must drill holes for Wire 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 |
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Busman
fuse holder/ panel mount/ drill 1/2" hole Some
fuseholders accept terminal
connections, some have solder-only connections. Fuse blocks have screw terminals. Buy: Panel mount fuse holders at Amazon ANL fuseholder Fuse blocks at Amazon Din rail fuseholder 10 x 38 mm fuse Ceramic fuses at Amazon Fast acting ceramic fuses Electrical terminals  Buy: fast and slow acting fuses: Ceramic fuses at Amazon Fast acting ceramic fuses |
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Din Rail fuse holder/ din rail
mount/ Din rail is surface mountBuy: Din Rail fuse holder Buy: 2T511GA Nema3R enclosure at Amazon 10 amp Relays 10 amp LY2 relays LY3 relay 120 volt LY2 15 amp Din rail timer Din rail Fuseholder Resources: Din rail timers Off Delay timers On delay timers Build 3-phase astronomic timer Build 2-speed timer for pump, motor etc |
 
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Terminals:
Crimp terminals onto stranded wire Solder terminals onto solid wire Use terminals to connect small wire to contactor Buy: Terminal kit at Amazon Blue terminals for 16-14 gauge wire at Amazon Yellow 12-10 gauge female terminal 16 pcs |
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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 |
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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 |
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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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 Contactors/ relays |
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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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