PLUG IN TO SAVING CASH AND ENERGY

Electric motors are inherently overpowered for start up conditions and therefore inefficient.  Increasing a motor’s efficiency is the key to lower operating costs, reduced energy consumption and eliminating greenhouse gas emissions. 

How on Earth can Consumers Make that Happen?
With Save-a-Watt: the ingenious device from Neg-a-Watt matches the motor capacity of your appliances workload to the need of the moment.  The motor never works harder than it needs to. And you’re not paying more than you should for electricity. Plus, by reducing how hard the motor works, you will dramatically extend the life of your appliances and lower your repair costs.

Heat is the main cause of motor damage and accounts for 79% of motor failures.
By reducing voltage Save-a-Watt reduces excess current flow, so the temperature of the motor is reduced to ambient operating temperature.

Save-a-Watt specs:
110 volt, 12 amp continuous and 15 amp peak
Installed by the consumer for use with refrigerators and freezers only.
Made in the U.S.A.

Click here for our Savings Calculator to determine how much money, energy and CO2 you’ll save with Save-a-Watt. Optimum Energy Calculator determines your annual energy savings and the amount of reduced CO2 emissions.

Consumer savings with Save-a-Watt will vary, depending on the appliance it’s being used with.  With refrigerators, for example, savings could be as high as $95 per year on energy bills alone, not to mention the cost savings of having the appliance last longer,

• If a refrigerator was manufactured prior to the Federal Trade Commission Appliance Labeling Rule and Energy Star ratings program, the annual cost savings will be up to 38% or $95*
• Refrigerators manufactured after 2001 (with an Energy Star rating) will achieve average annual savings of up to 32% or $60*

*based on normal use in an average home

Neg-a-Watt ENERGY SAVER - SINGLE PHASE MOTOR CONTROLLER

The Neg-a-Watt Energy Saver is a microcomputer based control for single phase motors. Better control is necessary because of increasing power problems and energy cost. The Energy Saver provides all motors and compressors with soft start, fault detection, electronic protection and energy saving. Energy Saver increases motor operating efficiency, equipment life and productivity...plus decreases electric bills and repair costs.

ENERGY SAVER OPERATION

SOFT START provides reduced-voltage starting of motors and compressors. Full voltage "hard starts" can damage motors as well as equipment. The Soft Start feature controls current and torque during motor acceleration. Power line disturbances, voltage sags and nuisance trips are reduced when the motor is soft-started on a weak capacity line.

ENERGY SAVING is obtained by regulating motor current at startup and when running at any load. Motor current and torque are regulated to actual workload need regardless of power line voltages. Full motor speed is maintained at all times and full torque is always available. ENERGY SAVER current control provides highest energy saving and power factor improvement at all workloads.

ELECTRONIC FAULT DETECTION is provided by monitoring the current to the motor. This prevents winding burnout from current overloads, locked rotor conditions and over/under voltage faults. ENERGY SAVER switches a motor "off the line" in response to an "out of limit" safe-operating condition. It is not dependent on slow acting (heat-related) overload protection devices.

BENEFITS

• SOFT START STEPLESS ACCELERATION
• DETECTS OVERCURRENT FAULTS
• REDUCES PEAK DEMAND CHARGES
• SAVES ELECTRICAL ENERGY
• MATCHES TORQUE TO WORKLOAD
• ELIMINATES CONTACT ARC FAILURES
• REDUCES PREMATURE MOTOR BURNOUTS
• REDUCES POWER FACTOR PENALTIES
• REDUCES MAINTENANCE COST
• REPLACES "ACROSS THE LINE" STARTERS -REDUCES MECHANICAL STRESSES
• SOLID STATE DESIGN FOR RELIABILITY

ENERGY SAVER FEATURES

• SOFT START - Gently Accelerates Motor up to Full Running Speed
• FAULT DETECTION - Responds To Motor Overcurrent From Any Cause
• ELECTRONIC PROTECTION - Prevents Sustained Excess Motor Current
• ENERGY SAVING - In Motors And Service Wiring To The Power Meter
• POWER LINE REGULATION - Prevents Over/Under Voltage Motor Damage
• SOLID STATE DESIGN - 15 Year Operation at 120° F
• ELECTRONIC START CONTROL - Option To Replace Centrifugal Switch
• REMOTE CONTROL PROVISION - For Fault Reset Or Motor Power On/Off
• MATCHES MOTOR LOAD - Torque and Power

SPECIFICATIONS

SELECTABLE PRIMARY VOLTAGES

• 110 VAC - 120 VAC, 50/60 Hz
• 200 VAC - 240 VAC, 50/60 Hz

• 1/4 HP-2 HP 120 VAC
• 1/2 HP-5 HP 240 VAC

• NEMA12
• Other Enclosures Available

• Sustained Over Current
• Locked Rotor Conditions
• Less Than Two Seconds

• Current Fault Reset
• Low Voltage Control On/Off

• Ambient of 0° - 150° F

CONSULT FACTORY FOR LARGER HP APPLICATIONS
120 - 240 VAC 50 or 60 Hz

INSTALLATION MUST BE IN ACCORCANCE WITH PROVISIONS OF THE US NATIONAL ELECTRIC CODE AND OTHER LOCAL CODES OR STANDARDS THAT APPLY. ALL PRODUCT SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.

Neg-a-Watt          INDUSTRIAL - THREE  PHASE ENERGY MONITOR

The Neg-a-Watt Industrial Energy Monitor is a microcomputer based solid state motor starter for controlling constant speed three phase motors. Better control is necessary because of increasing power problems and the cost of energy. The Industrial Energy Monitor provides motor soft start, fault detection, overcurrent protection plus energy saving control for all induction motor and compressor applications. The Industrial Energy Monitor increases operating efficiency, equipment life and productivity by decreasing downtime, energy consumption and repair costs.

ENERGY MONITOR OPERATION

SOFT START allows smooth, stepless reduced-voltage starting of motors and compressors by sensing the motor's actual load. Full voltage hard starts can damage motors as well as equipment. Soft Start prevents unnecessary high starting current, excess torque and eliminates power line disturbances when the supply system does not have sufficient capacity. Voltage sags and nuisance trips are reduced with starts on weak capacity lines.

ENERGY SAVING is obtained by eliminating overcurrent to the motor during startups. Current to the motor is also controlled while operating with widely varying loads. Power consumption and operating cost are reduced with pumps, conveyors, blowers, compressors and other motor applications. Stator winding voltage is automatically adjusted in proportion to actual motor loads. Full motor speed is maintained at all times. Full torque is available while the control obtains maximum energy saving and power factor improvement.

FAULT DETECTION is provided by continuously monitoring power line current all the way to the motor winding. This prevents burnout from - loss of connection anywhere between the power line and the motor terminals - current overloads - locked rotor conditions - primary phase loss - phase reversals - over/under voltage faults. POWER MANAGER switches the motor "off the line" in response to "out of limit" safe-operating conditions. It is not dependent on slow acting (heat related) overload protection devices.

• SOFT START STEPLESS ACCELERATION
• SAVES ELECTRIC ENERGY
• REDUCES PEAK DEMAND CHARGES
• REDUCES MECHANICAL STRESSES
• REDUCES MOTOR BURNOUTS
• REDUCES LINE VOLTAGE SAGS
• REDUCES MAINTENANCE COST
• IMPROVES POWER FACTOR
• ELIMINATES  CONTACT ARC FAILURES
• SOLID STATE DESIGN  FOR RELIABILITY
• REPLACES ACROSS THE LINE STARTERS
• LINE LOSS DETECTION INPUT AND OUTPUT

The Neg-a-Watt Industrial Energy Monitor

ELECTRONIC PROTECTION

• Undervoltage Monitoring
• Overvoltage Monitoring
• Phase Loss Detection
• Phase Reversal Detection
• Locked Rotor Protection
• Over Current Protection
• Motor Line Loss Detection

• Limits Line Current To Work Load
• Matches Line Power To Work Power

• Adjustable Starting Torque
• Adjustable Acceleration Rate
• Adjustable Ramps
• Accelerates To Full Motor Speed

• Four Operational Status Lights
• Three Diagnostic Lights
• Selectable Auto/Manual Resets
• Safety Relay Contacts
• Optional Power Line Contactor
• Optional Restart Time Delay

SPECIFICATIONS

MOTOR SOFT START OPERATION

• Starting Torque - Matches Motor Load
• Starting Power - Matches Motor Load
• Gently Accelerates -To Full Motor Speed
• Accelerate Time - Adjustable 0-15 Sec

• 200 VAC - 240 VAC, 60 Hz
• 440 VAC - 480 VAC, 60 Hz

• 2 HP - 60 HP 230 VAC
• 3 HP- 150 HP 460 VAC

• 24, 120, 240, 277 VAC

• NEMA1
• Other Enclosures Available

• 10% Under and Overvoltage Protection
• Input and OUTPUT Line Loss Protection - Under One Second
• Phase Reversal Protection - Under One Second
• Six Sec. Delay Prevents Nuisance Trips From Under and Over Voltage Conditions

• 200° F Thermostat

• -40°to+150° F

• Normally Open (Off Line)
• Rated 2 amps @ 240 VAC
• Operated by Fault Command Signals

THREE PHASE MODELS - DUAL VOLTAGE
MODEL          VOLTAGE 60 Hz      HORSE POWER       MAX FLA      WT      DIMENSIONS                      
                                                      H         W        D
I-480-35-25     208-240 440-480         2-12 3-25         35        18LBS 14"       12"       6"
I-480-85-50     208-240 440-480         10-25 15-50     85        41LBS 20"       17"       11"
I-480-135-100 208-240 440-480         20-50 40-100   135       50LBS 20"       17"       11"
I-480-210-150 208-240 440-480         30-75 60-150   210       55LBS 20"       17"       11"

INSTALLATION MUST BE IN ACCORDANCE WITH PROVISIONS OF THE US NATIONAL ELECTRIC CODE AND OTHER LOCAL CODES OR STANDARDS THAT APPLY.   ALL PRODUCT SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.
CONSULT FACTORY FOR LARGER HP APPLICATIONS.