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How to wire phase monitor |
| 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 |
| Why use phase monitor? The problems of low voltage and phase fluctuation (lower voltage on one wire) do not affect resistance loads like light bubs or electric water heater, except to make them burn at dimmer capacity. However low voltage and phase fluctuations do affect inductive loads like contactors, relays, motors, pumps, HVAC .... causing problems such as chatter on contactors and relays, and lower rotation speed on motor, causing higher temperatures, and burning out the motor or shortening motor lifespan .... ..."a 10% voltage decrease will cause a 10% amperage increase" ... leading to wasted energy, overheated motor, motor failure, insufficient torque, tripping breakers. "With nearly two thirds of all electrical loads being A.C. motor loads, maintaining proper voltage is important. If the supply voltage is not maintained, motor winding current increases causing reduced torque and escalating temperature, all of which results in the rapid loss of insulation life expectancy. In addition, the detrimental effects of low voltage on both resistive heating loads and incandescent lighting output. Anytime you have lower than standard voltage, equipment damage and failure can result. Anytime a line voltage change in the 5-20% range is required, a buck-boost transformer should be considered as your first line of defense." |
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"How to identify low or high voltage situations • Overheating motors • Premature motor failures • Equipment not working properly due to low torque of motors • Nuisance tripping breakers • Long distance service runs • Improper, erratic, or no operation of equipment • Increase in energy cost" |
"
Causes of voltage mismatch • Service voltage changed after equipment installed • Voltage drop in power line • Error in ordering equipment • Utility cutback in source voltage" |
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IMC492 Single-phase Voltage
monitor Household power 120-240 volt is single phase. Voltage monitor Protect motors and equipment from low voltage. Adjustable voltage range Caution: select monitor voltage to match incoming Line voltage Select amp rating of contactor to match amp rating of Load (motor, pump etc) Select matching contactor voltage and coil voltage range Undervoltage on contactor coil will cause chattering and malfunction, Overvoltage on coil will melt coil. Buy: Single phase 95-270 volt range single-phase 80-300 volt range ICM phase monitor Voltage monitoring relay Siemens monitoring relay Din rail fuseholder 10 x 38 mm fuse Resources: Fuseholders Contactors Surge protector Difference between surge and ground Difference between single phase and 3-phase IMC492 manual Siemens .pdf |
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Siemens Single-phase
Voltage monitor Rated 24-240 volt AC Buy: Single phase monitor Din rail fuseholder 10 x 38 mm fuse |
| "Switching a relay or solid state
switch at the zero-crossing point
reduces spark across the contacts, extending relay life, and also
reduces EMI (electromagnetic interference)." Resource: Extend life of relay by switching at zero cross .pdf |
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IMC402 3-phase phase monitor Protects against phase loss, phase reversal and phase unbalance. Phase Loss Condition: Equals 25% of nominal for any given phase; system will shut down should this occur Line voltage on 3-phase 190-600V Control voltage 115-230V Output to contactor max 30 amps Contactor coil rated 27 amp inrush, 7 volt operation Buy: Single phase 95-270 volt range IMC402 3-phase 80-300 volt range ICM phase monitor 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 Din rail fuseholder 10 x 38 mm fuse Resources: Fuseholders IMC 402 pdf IMC400 manual Siemens .pdf |
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IMC400 3-phase phase monitor Protects against phase loss, phase reversal and phase unbalance. Buy: IMC400 phase line voltage monitor IMC450 3-phase voltage monitor Resources: Fuseholders IMC 402 pdf IMC400 manual IMC450 manual |
| ICM450-Phase-Monitor.pdf | |
| ICM408-1.pdf | |
| ICM408-2.pdf |
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Recirculation systems |
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