Volt Amp
Todays deals on Volt Amp?
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SQUARE D MASTERPACT CIRCUIT BREAKER NW CAT#NW30H 3000 AMP 600 VOLT 3 POLE *NOB* $17,499.99 |
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700 HP GE Custom 8000 Induction Motor 440 Volts, 804 Amps. 3570 RPM Item #8406 $16,000.00 |
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Clinton Power 8000 Amp 12 Volt 480 Input Rectifier (R2154) $12,475.00 |
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Benshaw 500 HP Soft Start 480 Volt 600 Amp 60 Hz $9,500.00 |
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Challenger/Commander QSF8053C 800 Amp 600 Volt Main Switch $7,500.00 |
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SQUARE D RGF36160U44ASA 1600 AMP 600 VOLT CIRCUIT BREAKER W/ 120 VOLT SHUNT (A) $6,899.00 |
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SQUARE D RJF36160U44A 1600 AMP 600 VOLT 3 POLE CIRCUIT BREAKER (A) $5,999.00 |
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New Hitachi Inverter L700-900HFF 380-480 volt, 3 phase, 125 HP, 160 Amps $5,152.00 |
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Siemens Tiastar Motor Control Center 3 Phase 50/60 HZ 800 Amp, 480 Volt $5,000.00 |
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Allen Bradley Vacuum Contactor 1502 360 Amp 2300 Volt $4,500.00 |
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New Hitachi Inverter L700-750LFF 200-240 volt, 3 phase, 100 HP, 270 Amps $4,894.00 |
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Westinghouse 585 Amp Reduced Voltage Starter 480 Volt $4,500.00 |
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Square D T327NR 800 Amp 240 Volt 3R Disconnect $4,750.00 |
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Westinghouse SJS50VW430 Model B AC Vacuum Contactor 360 Amp 4160 / 5000 Volt $3,950.00 |
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ABB:PSTB370-600-70 Soft Starter 300HP At 480 V,361 Amps, Control Volt 70-100-250 $3,700.00 |
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GE NEMA1 1600 AMP 120/208 VOLT POWER DISTRIBUTION BOARD $4,000.00 |
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New Hitachi Inverter L700-750HFF 380-480 volt, 3 phase, 100 HP, 135 Amps $3,861.00 |
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Siemens SBS 2020 2000 Amp L,S,I & GF 3 Pole 600 Volt $3,500.00 |
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ITE HP3B800 Circuit Breaker 800 amp 600 volt 3 pole $3,495.00 |
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GE Heavy Duty Switch 800 AMPS 600 Volts-3R TC72367R $3,500.00 |
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NB31200F WESTINGHOUSE CIRCUIT BREAKER 900 Amp 3 Pole 600 Volt NEW OLD STOCK $3,500.00 |
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New Hitachi Inverter L700-550HFF 380-480 volt, 3 phase, 75 HP, 105 Amps $3,466.00 |
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DC BATTERY POWER BACKUP CONSOLE 1KS11 288VOLT 77,15AMP $3,200.00 |
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New Hitachi Inverter L700-550LFF 200-240 volt, 3 phase, 75 HP, 210 Amps $3,263.00 |
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Used Zinsco QSF6053 600 Amp 600 Volt 3 Phase Switch $3,200.00 |
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Used Sylvania QSF6053C 600 Amp 600 Volt 3 Phase Switch $3,200.00 |
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Used Zinsco QSF6033 600 Amp 240 Volt 3 Phase Switch $3,000.00 |
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Used Sylvania QSF6033 600 Amp 240 Volt 3 Phase Switch $3,000.00 |
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NDC312T33W CUTLER HAMMER 1200 AMP 600 VOLT 3 POLE CIRCUIT BREAKER (A) $2,970.00 |
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SQUARE D MGA36800 800 AMP 600 VOLT POWERPACT CIRCUIT BREAKER $2,900.00 |
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New Cutler Hammer HJD3250 Circuit Breaker Type HJD 65K 3 pole 250 amp 600 volt $2,947.00 |
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New Cutler Hammer HKD3200 Circuit Breaker Type KD 65K 3 pole 200 amp 600 volt $2,913.75 |
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New Cutler Hammer HKD3225 Circuit Breaker Type KD 65K 3 pole 225 amp 600 volt $2,913.75 |
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New Cutler Hammer HKD3250 Circuit Breaker Type KD 65K 3 pole 250 amp 600 volt $2,913.75 |
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New Cutler Hammer HKD3300 Circuit Breaker Type KD 65K 3 pole 300 amp 600 volt $2,913.75 |
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New Cutler Hammer HKD3350 Circuit Breaker Type KD 65K 3 pole 350 amp 600 volt $2,913.75 |
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New Cutler Hammer HKD3400 Circuit Breaker Type KD 65K 3 pole 400 amp 600 volt $2,913.75 |
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New Cutler Hammer HJD3100 Circuit Breaker Type HJD 65K 3 pole 100 amp 600 volt $2,824.50 |
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New Cutler Hammer HJD3125 Circuit Breaker Type HJD 65K 3 pole 125 amp 600 volt $2,824.50 |
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New Cutler Hammer HJD3150 Circuit Breaker Type HJD 65K 3 pole 150 amp 600 volt $2,824.50 |
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New Cutler Hammer HJD3175 Circuit Breaker Type HJD 65K 3 pole 175 amp 600 volt $2,824.50 |
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New Cutler Hammer HJD3200 Circuit Breaker Type HJD 65K 3 pole 200 amp 600 volt $2,824.50 |
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New Cutler Hammer HJD3225 Circuit Breaker Type HJD 65K 3 pole 225 amp 600 volt $2,824.50 |
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LES3600LSIG CUTLER HAMMER 600 AMP 600 VOLT DIGITRIP ELECTRONIC TRIP UNIT (A) $2,790.00 |
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Used Zinsco QSF6032 600 Amp 240 Volt 1 Phase Switch $2,800.00 |
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FDPS367T WESTINGHOUSE 800 AMP 600 VOLT FUSIBLE DISCONNECT PANELBOARD SWITCH (A) $2,800.00 |
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New Hitachi Inverter L700-450HFF 380-480 volt, 3 phase, 60 HP, 85 Amps $2,787.00 |
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New Hitachi Inverter L700-450LFF 200-240 volt, 3 phase, 60 HP, 169 Amps $2,773.00 |
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Square D QMB327MWT3 series E1 800 amp 240 volt 3 phase panelboard switch $2,500.00 |
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Amrel PQ100-33 DC Variable High Power Supply 0-100 Volt 33 Amp Current Sorensen $2,499.99 |
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Saftronics 800 amp 600HP soft start EZ6-800 200 230 460 575 volts $2,499.99 |
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Square D QMB365MW series E1 400 amp 600 volt 3 phase panelboard switch $2,399.99 |
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Agilent/HP 6032A Power Supply 60 Volts at 50 Amps $2,500.00 |
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Westinghouse KDC3400F 400 Amp (KDC3400) Circuit Breaker 100 KAIC at 480 Volt $2,500.00 |
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New Hitachi Inverter L700-370LFF 200-240 volt, 3 phase, 50 HP, 140 Amps $2,447.00 |
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Used Sylvania QSF40D 400 Amp 600 Volt 3 Phase Switch $2,400.00 |
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Square D MHL3640025DC1679 400 Amp, 600 Volt DC Circuit Breaker $2,360.00 |
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CUTLER HAMMER LD3600 600 AMP 600 VOLT CIRCUIT BREAKER $2,355.00 |
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30 HP Variable Frequency Drive Inverter AC Tech NEMA 4X 400-480 Volt 40 Amps New $2,299.00 |
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LES3600LSG CUTLER HAMMER 600 AMP 600 VOLT DIGITRIP ELECTRONIC TRIP UNIT NEW (A) $2,250.00 |
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FDCE322536 CUTLER HAMMER 225 AMP 600 VOLT ELECTRONIC CIRCUIT BREAKER W/ TRIP (A) $2,247.50 |
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Used Federal Pacific QMQB7036V 600 Amp 600 Volt Switch $2,200.00 |
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New Hitachi Inverter L700-370HFF 380-480 volt, 3 phase, 50 HP, 70 Amps $2,175.00 |
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SQD Square D LC36600 600 Amp, 600 Volt, 3 Pole Circuit Breaker $2,124.00 |
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Used Cutler Hammer HJD3250 Circuit Breaker Type HJD 65K 3 pole 250 amp 600 volt $2,105.00 |
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Used Zinsco QSF4053 400 Amp 600 Volt 3 Phase Switch $2,100.00 |
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Used Zinsco QSF4053 400 Amp 600 Volt 3 Phase Switch $2,100.00 |
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New 25 HP AC Variable Frequency Drive Inverter 4X w/POT 400-480 Volt 34 Amps $2,099.00 |
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Used Cutler Hammer HKD3200 Circuit Breaker Type KD 65K 3 pole 200 amp 600 volt $2,081.25 |
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Used Cutler Hammer HKD3225 Circuit Breaker Type KD 65K 3 pole 225 amp 600 volt $2,081.25 |
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Used Cutler Hammer HKD3250 Circuit Breaker Type KD 65K 3 pole 250 amp 600 volt $2,081.25 |
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Used Cutler Hammer HKD3300 Circuit Breaker Type KD 65K 3 pole 300 amp 600 volt $2,081.25 |
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Used Cutler Hammer HKD3350 Circuit Breaker Type KD 65K 3 pole 350 amp 600 volt $2,081.25 |
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Used Cutler Hammer HKD3400 Circuit Breaker Type KD 65K 3 pole 400 amp 600 volt $2,081.25 |
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ITE UV325 400 Amp, 240 Volt Bus Plug $2,000.00 |
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NA361000 SQUARE D 1000 AMP 600 VOLT I-LINE CIRCUIT BREAKER $1,999.99 |
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New Hitachi Inverter L700-300LFF 200-240 volt, 3 phase, 40 HP, 113 Amps $2,032.00 |
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Used Cutler Hammer HJD3100 Circuit Breaker Type HJD 65K 3 pole 100 amp 600 volt $2,017.50 |
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Used Cutler Hammer HJD3125 Circuit Breaker Type HJD 65K 3 pole 125 amp 600 volt $2,017.50 |
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Used Cutler Hammer HJD3150 Circuit Breaker Type HJD 65K 3 pole 150 amp 600 volt $2,017.50 |
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Used Cutler Hammer HJD3175 Circuit Breaker Type HJD 65K 3 pole 175 amp 600 volt $2,017.50 |
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Used Cutler Hammer HJD3200 Circuit Breaker Type HJD 65K 3 pole 200 amp 600 volt $2,017.50 |
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Used Cutler Hammer HJD3225 Circuit Breaker Type HJD 65K 3 pole 225 amp 600 volt $2,017.50 |
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Siemens SHJD69200NGT 200 Amp 600 Volt Breaker $2,000.00 |
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Used Challenger QMQB4036R 400 Amp 600 Volt Switch $2,000.00 |
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2000 Amp Breaker 3 Phase AC 660 Volts $2,000.00 |
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SIEMENS ITE BUSWAY PLUG UV366G 600 AMP 600 VOLT NEW $1,999.99 |
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GE General Electric THPC 3625 ET 1 2500 Amp 600 Volt $1,750.00 |
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KEPCO ATE 25-40M POWER SUPPLY 0-25 VOLT 0-40 AMP $1,799.99 |
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LDC3600 CUTLER HAMMER 600 AMP 600 VOLT 3 POLE CIRCUIT BREAKER (A) $1,800.00 |
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ABB MCCB Tmax Thermal Magnetic Circuit Breaker 600 Volt Rated 600Amp,35 kAIC P/N $1,800.00 |
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Used Zinsco QSF4033 400 Amp 240 Volt 3 Phase Switch $1,800.00 |
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Used Zinsco QSF4033 400 Amp 240 Volt 3 Phase Switch $1,800.00 |
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Used Zinsco QSF4033 400 Amp 240 Volt 3 Phase Switch $1,800.00 |
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Square D Fused Switch 2000 Amp, 600 volt, 3 pole $1,800.00 |
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Used Challenger FCSC326MR 600 Amp 240 Volt Switch $1,800.00 |
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Used Sylvania QSF4033 400 Amp 240 Volt Switch $1,800.00 |
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40 HP Variable Frequency Drive Inverter AC Tech NEMA 1 52 Amps 400-480 Volt New $1,799.00 |
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GE 600 AMP SPECTRA SERIES BUS TAP 600 VOLT 3WIRE 3 PHASE $1,799.00 |
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New Cutler Hammer HFD3225 Circuit Breaker 65K 3 pole 225 amp 600 volt $1,762.25 |
Volt Amp Questions
An Introduction to Volts, Amps & Watts
One discovery has completely revolutionized the way the world works: electricity. To demonstrate this, all you to do is to look around yourself and consider what parts of your home or workspace would work without electricity. In this case, it would seem to be important to have some idea of how electricity works; this article has been written for just this purpose.
The basic definition of electricity is quite intuitive: electricity is a flow of electric charge. Electric charge is one of the fundamental quantities which form the basis of physics.
The basic unit of electric current is the amp, a shortening of Ampere (named after a French physicist named Andre-Marie Ampere). The definition of electric current is very similar to the definition of a flow of water, except that the “stuff” being measured is the amount of electric current passing through an area such as a point on a wire.
Voltage, on the other hand, is not so easy to explain in simple terms. The quantity which we informally refer to as “voltage” is actually electric potential difference (no wonder we find it easier to say “voltage” instead!). Here we can draw an analogy to the pressure difference in a pipe, which drives the flow of water. In the case of electric current, it is a difference in charge which creates this potential: electric current is simply nature’s way of trying to balance out an imbalance of charge by sending negative charges to a more positively charged region, or positive charges to a more negatively charged region.
The basic unit of potential difference is the volt, which may be thought of as the amount of desire electrons in the current have to get across the distance separating two differently charged regions. If one side of the gap has five units of positive charge and the other side five units of negative charge, the voltage will be five times greater across the gap than if there were one unit of positive or negative charge on each respective side.
There is nothing about watts that is particular to electricity; the watt is a unit of power, a measure of the amount of work done per unit time. Imagine two cars, a high-powered racing car and a run-of-the-mill family car, each given the same amount of the same type of fuel. Since each car has the same amount of the same fuel, each will theoretically travel exactly the same distance before running out of fuel and rolling to a stop (assuming all else is equal). If both cars are cranked to their maximum output and it takes the family car twice as long as the race car before it finally rolls to a halt beside its sexier counterpart, we would say it has half the power of the race car (but equal energy).
In electricity, it turns out that power is current multiplied by voltage: the potential difference (in volts) in a wire by the current (in amps) gives you the power coursing though the wire, in watts.
Though it seems simple to plug in a TV and zone out in front of the ‘tube, there is good reason to understand the basics of electricity. The world is not as simple as it may seem, because each appliance, cell phone, and laptop computer is designed to run on a different power rating. While feeding a part less power than it needs would be relatively harmless, doing the opposite can destroy that device you shelled out your hard earned money for! Understanding the meanings of words like “volts” and “amps,” you may now feel more secure when reading that user’s guide when it describes the power requirements for your new plasma TV!
About the Author
Cecilia Montrose watches gas prices like a hawk. She’s found 50 ways to save gas and is always looking for new ways to cut her gas bill, including starting a carpool or buying a fuel efficient car.
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