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Generator Test Set
30KW, 120/240VAC, 50-70 Hertz Load Bank


Model 650
A Self-Contained Load Bank for Electrical Load Testing of AC Generator

What is a load bank?

A Generator Test Set, also known as a generator tester, a load bank or a dummy load, provides a fully controllable load that mimics the real load that the generator would see in normal operation. Its use allows the performance of both the engine and generator to be evaluated. It is also useful for restoring the full capacity to diesel powered generators by burning off the fuel deposits that have collected while operating under light loads. A third use is that of a UPS tester.

Now you can be sure that your generators and alternators are providing the output they should, and at the proper voltage and frequency.

Generators up to 30KW can be loaded to full capacity. The generator test set combines two load banks in one, providing a 0-250A (0-30,000 watt) load at 120V, or 0-125A (0-30,000 watt) load at 240V.

The Generator Test Set is comparable with those offered by other companies but at a much lower cost!

PRICE:   $3,700.00

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An Easy to Use Product at a Practical Price!


Reduce Wet Stacking in Diesel Powered Generators
Diesel-driven units are subject to particular malady known as "Wet Stacking" or "Slobbering" that stems from operation under no-load or light-load conditions. Such operations cause fuel deposits to collect on the combustion chamber, injector nozzles, piston rings, turbocharger and exhaust system. The result is diminished engine output capacity. Fully loading the generator for a time period will clear this condition.
Voltage Limits Identified
The proper voltage limits for both 120V and 240V generators are identified on the voltmeter face.
Ammeter Controls
0-150 amps.
Direct Reading Frequency Meter
50-70 Hz (Electronic) frequency meter features a direct reading needle type indicator.

Self-Contained Cooling System
A self-contained fan allows the test set to operate on a continuous basis.

Built, Sold and Serviced in the U.S.
For over four decades Sotcher Measurement, Inc. has provided latest state-of-the-art electrical test equipment that is easy to use and maintain. Our customers rely on our products to verify the safety of the electrical devices they rent, use or manufacture. We feel this commitment very deeply. In response, we do our utmost to insure that the products we offer are of the highest quality and performance, consistent with good value.

We continue to design, manufacture and service all of our products in the United States. We are proud to be able to offer our customers fine American products that are easy to use at a practical price.

Input Voltage:       
120/240V, 50-70Hz, single phase
Circuit breaker protection provided on each section
Load Capacity:     
0-30,000 Watts
Duty Cycle:            
Power Factor:        
  • Frequency Meter:
+/-3% Center
  • Volt Meter:
+/-3% FS. 
  • Ammeter:
+/-5% FS. 
Input Plug:      
3XCam-Lock Connectors, 400V, 125A
Approximately 50 pounds.
12 inches high, 19 inches wide, 20 inches deep
The following adapters allow you to mate the test set with receptacles commonly found on portable generators. Most of the adapters connect to the test set through the master adapter (40608). This saves you the cost of larger 50 amp connectors on every adapter. A good selection for most application would include the 40608, 40611,40612 and 40613.
40650: Adapter, 125/250V, 125A Cam Lock/Blunt Cut
40651: Adapter, 125/250V, mates with 40608
40601: Adapter, 125/250V, 50A, with Clips
40608: Adapter, Master, 125/250V, 30A, Locking
40609: Adapter, 125/250V, 20A, Locking, mates with 40608
40610: Adapter, 125V, 30A, Locking, mates with 40608
40611: Adapter, 125V, 20A, Locking, mates with 40608
40612: Adapter, 125V, 15A, Non-Locking, mates with 40608
40613: Adapter, 240V, 20A, Locking, mates with 40608
40614: Adapter, 125/250V, 50A, Locking
40616: Adapter, 125/250V, 50A, with Lugs
40617: Adapter, 250V, 20A, Locking
40619: Adapter, 125/250V, 50A, 3 Phase, Locking (two test sets)

Model 650 30KW Generator Test Set
• User's Manual
• One Year Parts and Labor Warranty



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"Definitely a good, top of the line product. Nobody questions the battery after it has been tested with the ni-cad battery tester. Can't beat the 573 when it comes to checking ni-cad batteries." 

Peter Reis
Fit-it Shop



Nationally Recognized Sotcher Measurement Inc. test equipment is in common use throughout the United States by major manufactures of power tools and appliances.