Keep wires and conduit straight
Electricians forum
Search
Search using google with ads
|
Keep wires and conduit straight |
How
to install 3-phase timer Electricians forum Search Search using google with ads
|
| 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 |
| 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 |
 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 |
 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 |
| 3-pole and 4-pole box timers for 3-phase | |
  Larger image Nema 3R indoor outdoor 40 amp resistive each pole Option 1) T1400 series 24 hour timer/ 24-hr/ 120, 208-240, and 480V / 4PST/ +with skip-a-day/ 40 amp/ 40 amp per pole Nema 3R metal indoor-Outdoor box 3-phase timer or single-phase Dry load terminals Control 4 different loads and voltages with same 24-hour schedule, or use for 3-phase. The older BC and BCR models with power carryover are discontinued Buy: T1471BR/ 125V/ 4PST T1472BR/ 208-240V/ 4PST T1475BR/ 480V/ 4PST/ Parts: 156T1948A trippers 156T3085A 3 skipper screws WG430 clock motor 125Volt Resources: T1471BR 120V Manual T1472BR 208-277V Manual T1475BR 480Volt Manual Sell Sheet Can be wired to control 3-phase load Larger image T1471BR wiring Replacement trippers and parts list |
  Larger image Option 2) TB7400 series 7 day timers TB7401B and T7401BC 7-day timers 120 volt input voltage to operate clock motor T7402B and T7402BC 208-277 volt input voltage  Dry
terminalsBC models have power carryover T7401 and T7402 are 4PST Can use for 4 separate loads, or for 3-phase load 40 amp per pole 120-480 volt on poles Clock motor is 120 volt No day skipper wheel -40 to +130° operating range Minimum 3-1/2 hour ON-OFF/ 28 ON-OFF settings per week Buy: T7402BC indoor box/ power carry-over/ 208-240-277V/ 4PST/ T7402B indoor box/ 208-277Volt/ 4PST/ 156T2548A trippers WG1600-11 120 volt clock motor WG1603-11D 208-277 volt clock motor WG1606 480V clock motor Resources: T7400-7800 Sell sheet with wiring T7401B manual |
  Larger image Option 3) Tork 7300 24-hour Timer 3SP relays 120Volt clock motor 8-14 gauge wire 40 amp contacts Single-phase -or- 3-phase 3-wire Buy Tork 7300 Resources: 7300 manual Tork timers |
| Single phase box timers for 3-phase | |
 277 volt timer Timer draws power from 3 phase line of 3-phase main panel 1 Hot and 1 Neutral are drawn off the 480V 3-phase line to yield 277 volt. Inline fuse required on Hot wire pulled from 3-phase.  Buy GM40AV 120-208-240-277V GM40AVQ w/ back-up battery Tork TU series DPDT/ 120-277V universal timer Buy Tork DTU digital timer 277 volt 3-pole contactor Resources How to wire GM40 timer Fuseholders |
|
 480 volt timer Timer draws power from 3 phase line of 3-phase main panel 2 Hot wires are drawn off the 480V 3-phase line. Inline fuses required on each Hot wire pulled from 3-phase. T104 series timers are rated 480 volt ... but clock motor must be changed from WG1573 to WG1576  Buy: WG1576 clock motor for 60 Hz 480V Buy: T104 series timers Resources: How to wire T104 timer |
|
 480 volt timer Start with Intermatic 240 volt T104 40 amp timer -or- T174 w day-skipper Change to 480Volt timer by changing clock motor from 240V WG1573 to 480V WG1576 Buy: T104 timer T174 timer 480 volt clock motor Resources: How to wire T104 timer T100 series timers and manuals How to set and operate T104 timer |
|
 208-240 Volt timer 208-240 Volt 3-pole contactor Buy: 208-240V 3-pole contactors 3-pole contactors Resource Intermatic T104 and T174 GM40 DTU 40 Fuseholder |
|
 120 Volt timer 120 Volt 3-pole contactor Control any 3-phase voltage Buildings with 3-phase power also have Neutral wire used to power ordinary 120Volt outlets. 1) Use 120 Volt timer. 2) Install 3-pole contactor with 120Volt coil 3) Timer controls 120Volt coil. 4) 3-pole contactor turns 3-phase power ON-and-OFF.  Examples of this timer: Intermatic EH10 7-day programmable Intermatic T101 24-hour analog Repeat cycle timers Dawn-dusk timer 365-day programmable timers 277Volt 24-hr analog timer Resource Resources for 3-pole contactors 3-pole contactors ET series timers and manuals GM series timer and manuals |
|
 24 Volt timer 24 Volt 3-pole contactor  Buy: Resources for 3-pole contactors 3-pole contactors Resource: 24 volt timers and manuals/ |
|
 3-phase off delay timer Other applications for timer .. wiring not illustrated here: Off-delay, repeat cycle, delay on break, pulse generator, latching, single shot. Input voltage 12V - 240 volt (50-60 Hz) Indicator lights .1 seconds to 10 days Buy: Elko delay timer Migro delay timer Migro relays and timers Resources: CRM-93H 10-function CRM-91H 10 function CRM-82 two-function: Delay timer for motor or pump/ 120Volt to 240Volt |
|
 Timer controls LC1D contactorBuy 120 volt 7-day timer with 120 volt coil 30 amp contactor 240 volt timer 240 volt coil 32 amp contactor Schneider contactor Motor contactors Buy: fuseholder: ANL fuseholder 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: THC 15 timers THC 15 120 volt Resources: More DIN rail timers Fuseholder |
|
 Phase monitor Protect circuit in event of low voltage on 1 line. Buy: Single phase 95-270 volt range IMC402 3-phase 80-300 volt range ICM phase monitor Resources: Fuseholders IMC 402 pdf IMC400 manual Siemens .pdf How to wire phase monitors |
 3-phase
dawn dusk timer using NeutralTimer is rated 120 or 208-240 VAC. Timer is not rated for 480 or 600 volt. 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. For this illustration, select contactor with coil voltage that matches phase voltage. (measured between Hot wire and Neutral). 3-phase wire colors vary. Buy: Intermatic ST01 timer Ei600 5-year warranty timer CR2 replacement battery |
 3-phase dawn dusk timer
no NeutralTimer is rated 120 or 208-240 VAC. Timer is not rated for 480 or 600 volt. 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 |
| Control secondary circuit with auxiliary contacts | Add delay circuit using contractor block |
 Square D Auxiliary contacts Schneider Auxiliary contactor Eaton Auxiliary contacts Siemens auxiliary contact Siemens Auxiliary contactor Mars Auxiliary contactor Noark auxiliary contact Furnas Auxiliary contactor |
  Buy
Contact blocks Delay contact block LADT2 with 30 second delay Dayton contact block Resource: How to wire contactor block |
 Overview of 3
phase switch/timer circuitWire colors vary. 3-phase breaker located in main panel. 3-phase 3-wire goes from breaker to contactor (or motor starter) and then to motor. Grounding is required. Neutral wire is not included, and not needed for 3-phase circuit. 2 Hot wires are pulled from 3-phase lines and go to a double-pole switch or timer. Switch or timer activates motor starter or contactor, which starts motor. 3-pole fused disconnect is added between circuit breaker and contactor or motor starter. This disconnect is often required by code to protect anyone servicing motor and to protect wires and motor from overheating. 2-pole fused disconnect is added between 3-phase line and the double-pole switch or timer. This disconnect is often required by code to protect anyone working on circuit, and to protect wires, switch and contactor  ResourcesMotor resources 3-pole contactors Buy: 3-pole contactors 3-pole disconnect Leviton MS302-DS 600Volt 30 amp double-pole motor switch |
 |
 |
Buy
from my affiliate links every time/ thanks: Amazon ''As an Amazon Associate I earn from qualifying purchases'' Enter Amazon from any link on my site, fill cart with any item ... purchases pay small commission E-mail: geno03245w@gmail.com My response might end up in spam folder, check email folders Waterheatertimer on Twitter Message thru facebook |
