CB Agency Approvals


Most countries have regulatory agencies that determine the safety and performance standards required for products used in that country. Carling Technologies' circuit breakers are tested and have been certified by the most widely recognized of the these agencies including Underwriters Laboratories (UL) in the United States; Canadian Standards Association (CSA) in Canada; TUV Rheinland/Berlin-Brandenburg (TUV) and Verband Deutscher Elektrotechniker (VDE) in Germany.

UL Recognized/UL1077 Recognized

UL Recognition covers components, which are incomplete or restricted in performance capabilities. These components will later be used in complete end products or systems Listed by UL. These Recognized components are not intended for separate installation in the field, they are intended for use as components of complete equipment submitted for investigation to UL.

Carling Technologies offers circuit breakers which are classified as supplementary circuit protectors and are Recognized under the UL Components Recognition Program as Protectors, Supplementary, UL Standard 1077. A UL 1077 Recognized supplementary circuit protector must have a Listed overcurrent device as a "back up".

Carling's M-Series, Q-Series, A-Series, B-Series, C-Series, D-Series, and E-Series circuit breakers offer UL 1077 Recognition.

UL Listed/UL 489 Listed

UL Listing indicates that samples of the circuit breaker as a complete product have been tested by UL to nationally recognized safety standards and have been found to be free from reasonably foreseeable risk of fire, electric shock and related hazards, and that the product was manufactured under UL's Follow-Up Services program.

Carling Technologies offers branch circuit breakers that are UL 489 Listed. Branch circuit breakers are classified as a final overcurrent device dedicated to protecting the branch circuit and outlet(s). They do not require an additional "back up" overcurrent device wired in series to protect a circuit.

Carling's C-Series, E-Series, and F-Series circuit breakers offer UL489 Listing. C, A, and F-Series breaker is also UL489A Listed for Telecom industry.

UL1500 (Marine)

UL1500 refers to products and components classified as ignition-protected, and are intended to be installed and used in accordance with applicable requirements to the U.S. Coast Guard, the Fire Protection Standard for Pleasure and Commercial Motor Craft, ANSI/NFPA No. 302, and the American Boat and Yacht Council, Incorporated. Special constructed versions of Carling Technologies' A-Series, B-Series, and C-Series circuit breakers meet this standard.


The CSA (Canadian Standards Association) is the closest in concept and nature to UL of any group outside of the United States. Their standards and requirements are often almost identical to corresponding UL standards. CSA publishes their standards for most circuit protection devices as separate sections of CSA Standard C22.2 that in turn, forms a part of the Canadian Electrical Code. All of Carling Technologies circuit protection products meet the applicable requirements of CSA Standard C22.2


A cUL mark on a product means that samples of the product have been evaluated to the applicable Canadian standards and codes by Underwriters Laboratories Inc.


There are two German government approved independent agencies, VDE (Verband Deutscher Elektrotecchniker), and TUV (Technisher Uberwachungs-Verein). In the circuit protection field, outside of the U.S.A. and Canada, the German VDE specifications are the best known and most referred to standards. When a specification is written, it is done by a VDE committee. VDE has two separate branches. One branch writes specifications; the other tests products to these specifications.

TUV only tests products. Testing to VDE specifications does not have to be done by VDE for certification. TUV can also perform testing and grant certification in accordance to the VDE specifications. VDE testing facilities are located in Germany. TUV's organization is made up of at least eleven geographically dispersed companies. At least two are located in the United States. This aids some U.S. manufacturers in getting "fast track" approval to a VDE specification.

Carling's M-Series, A-Series, B-Series, C-Series, D-Series, and E-Series breakers have been certified to meet EN 60934 by VDE and TUV labs.

Agency File Numbers

Agency file numbers can be found on the downloadable PDF files located on these product pages.