Load Banks

ASCO SIGMA Load Bank Control

SIGMA is a multi-functional embedded load control system specifically designed for ASCO Avtron and ASCO Froment load banks. Flexible, Feature Rich and Cost Effective it is best-in-class providing a solution for any application.

Best Suited For
  • Construction and Engineering
  • Data Center/Colocation/Hosting
  • Manufacturing
  • Military, Defense, Aerospace and Missile
  • Marine
  • Oil and Gas
  • Power Generation
  • Power/Gas Transmission and Distribution
Parts and labour are covered by Froment's standard 12 month warranty as described in the terms and conditions of sales.


*To see model-specific downloads, you will need to go to the model-specific product page by selecting the model name in the specifications chart above.


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SIGMA is available in two platforms: SIGMA LT and SIGMA 2.
SIGMA LT is a cost effective load bank control system specifically designed for lower capacity resistive load banks giving best in class control flexibility and utilisation.
SIGMA LT control types: digital toggle switches, hand-held.
SIGMA 2 has increased control and functionality with enhanced test features, instrumentation and user benefits.
SIGMA 2 control types: Decade switches, Intelligent hand-held terminal (IHT), PC basic, PC software, site load correction, mod bus communication protocol.


Fast and accurate testing with maximum efficiency. SIGMA provides cost effective data acquisition, is accurate, automated and easy to use.
No-need for any pre calculations.
Multiple load banks of different capacities and combinations can be connected and controlled in one place.
Automatic load control provides up to 16 timed load steps including manual override and cyclic testing.

Services & Support


Frequently Asked Questions
Which Sigma control type do I need?
The type of Sigma control you need depends on the application and what you want to achieve. Contact a member of our sales team to find which type is right for you.
Do you offer Sigma control training?
Yes, we can come to a location of your choice for control training. Contact us to arrange a date of your choosing.
How many load banks can be linked together?
Sigma 2 load banks can have 14 load banks linked together and Sigma LT can I have 25 load banks linked together.
What is the difference between Sigma 2 and Sigma LT controls?
Sigma LT controls are only available on selected 2000 and 3000 series load banks offering cost effective, purely resistive load tests. Sigma 2 is available on all Froment load banks is the most comprehensive load control available.
Can the load banks be controlled by any other methods?
Our load banks are able to be configured to be controlled by certain systems. For more information please contact out sales team.


Sales In USA Change Location
VERTIV (Avtron LoadBank)
6255 Halle Drive Cleveland Ohio 44125
Product areas of focus: Load Banks
CE Power Solutions (Willam McCloy)
4040 Rev Drive Cincinnati Ohio 45232
Product areas of focus: Power Transfer Switches, Paralleling Switchgear, Load Banks, Power Control and Monitoring
VERTIV (Avtron LoadBank)
1220 Old Alpharetta Road, Suite 310 Alpharetta Georgia 30005
Product areas of focus: Load Banks
RAPCO Associates, Inc.-Mr. Rene Philibert
Email Contact +1 504 887 9500 Fax +1 504 889 0523
4515 Shores Dr Ste 202 Metairie Louisiana 70010
Product areas of focus: Load Banks
Automatic Engineering, Inc. (Oklahoma and Arkansas)
Email Contact +1 918 585 5703 Fax +1 918 585 5707
1501 E. Sixth Street Tulsa Oklahoma 74120
Product areas of focus: Power Transfer Switches, Paralleling Switchgear, Load Banks, Power Control and Monitoring
VERTIV (Avtron LoadBank)
17235 North 75th Avenue, Suite F-135 Glendale Arizona 85308
Product areas of focus: Load Banks
ASCO Power Technologies
Email Contact +1 425 636 8165 Fax +1 206 219 1109
12510 128th Lane NE Kirkland Washington 98034
Product areas of focus: Power Transfer Switches, Paralleling Switchgear, Load Banks, Power Control and Monitoring
C.M. Buck & Associates (Indiana and Kentucky)
Product areas of focus: Load Banks
PL&E Sales, Inc (North Carolina and South Carolina)
Product areas of focus: Load Banks


Availability & Uptime

Preventive Maintenance Services

Preventive Maintenance Services from Vertiv will evaluate the condition of your equipment and determine the most cost-effective and manageable solution to ensure its overall performance, safety and reliability.

November 25, 2016
Availability & Uptime

Portable Load Banks

August 22, 2016
Availability & Uptime

Data Center and Facility UPS

August 19, 2016
Availability & Uptime

Permanent Load Banks

Provide 24/7 power testing reliability in outdoor environments with permanently installed load banks typically rated between 10KW-3000KW. Allow interface with switchgear and existing Building Management Systems (SCADA).With Avtron Helidyn...

August 22, 2016