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Product Quality & Testing

A single Circuit Breaker consists of over 200 individual manufactured parts. CBI has the manufacturing capabilities to produce over 25 million parts a month to strict, internationally approved specifications.  Manufacturing is CBI's core business and its proficiency has allowed the company to attain a substantial market share in every region it operates.

CBI-electric: low voltage is a highly vertically integrated company, able to convert raw materials into finished products. All tooling required for the manufacturing of components is designed and manufactured in-house. CBI has one of the largest tooling design and manufacturing facilities in South Africa. All jigs, fixtures and test equipment required for the assembly and testing of products are designed, manufactured and calibrated in-house.

Testing Facilities

CBI-electric: low voltage is able to rapidly design, develop and test customised prototype products. This ability, combined with the growing need to meet various international safety standards, has led CBI-electric: low voltage to establish a testing and research laboratory.  CBI's testing facilities, the only private testing facility of its kind in the Southern Hemisphere, comprises of a control room, with two 10 kA and one 65 kA fully computerised test bay. Circuit Breakers up to 65 kA can be tested against local and international standards for overload, endurance and vibration, thereby reducing the time required to develop a product from inception to completion.


Internationally recognised quality standards ensure that our products meet the most demanding requirements. All operations within the company are certified to ISO 9001:2015.  Annually CBI-electric: low voltage invests substantially in the training of staff to ensure that quality systems are maintained and effectively implemented.

CBI-electric: low voltage products are mark-bearing and approvals are audited periodically by local and international standards authorities, such as the South African Bureau of Standards (SABS), VDE, UL, CSA, CCC, CRCC, NSW and Ukr - Testing.

CBI's commitment to meeting and exceeding the most stringent of international quality and safety standards, combined with a relentless drive to continually develop new intellectual property, has also enabled the company to make the leap from a local manufacturer to an international exporter of quality products.

International Standards

The following documents are available on request from

  • RoHS Compliance (Restriction of Hazardous Substances)
  • REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)
  • CBi Conflict Minerals Policy
  • CBi Quality Policy Statement
  • CBi Environmental Sustainability Policy
  • CBi Environmental Objectives
  • Certificate of Compliance
  • Certificate of Origin


The following products have a standard two year warranty from the date of manufacture:

  • Miniature Circuit Breakers (MCB’s)
  • Circuit Breakers for Equipment (“CBE’s”)
  • Moulded Case Circuit Breakers (MCCB’s)
  • Clip in Earth Leakage Units

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