Low and Medium Voltage Distribution

UL Solutions helps meet the ever-evolving product safety, performance and interoperability needs for low and medium voltage power distribution products.

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Safety, security and reliability expertise for low and medium voltage distribution products

In the developed world, the Industrial Internet of Things (IIoT) is changing the generation, transmission and distribution of power and electricity. Two-way communication flow enables smarter and more efficient use of resources and gives more control to customers on how and when they use electricity. In the developing world, distributed energy resources (DER) and distributed generation (DG), often in the form of renewable energy are bringing reliable electricity to citizens for the first time.  

The modernization of electricity distribution is exposing grid operators, regulators, suppliers and consumers to new opportunities and challenges. Transmission and power distribution product suppliers now need to meet a new set of IIoT related requirements, such as cybersecurity and interoperability. The influx of DER and renewable energy is increasing demand for proven technologies that can interconnect with the grid in a mutually beneficial way. The advent of data analytics and artificial intelligence is changing the way system operators and consumers are making critical decisions, often without human intervention. And smart power distribution devices are being adopted in smart homes and smart cities at an unprecedented rate.

Service overview for low- and medium-voltage distribution products

As our power distribution systems continue to evolve and innovate technically, the need for safety, security and reliability remains of utmost importance. At UL Solutions, we help providers deliver safer, more reliable and more affordable electricity to a majority of the world with:

Rigorous testing and evaluation processes that can help you demonstrate compliance to safety, performance and related requirements.

Services to manage and mitigate the impact of variable generation on grid operations.

Worldwide leadership in safety science, performance testing and certification of electrical products and components.

Technical expertise found around the globe, available when and where you need it most.

Broad knowledge of local and national standards and codes, making us a valuable resource to regulators.

Accredited laboratories worldwide for component and system testing and certification.

Certifications trusted by consumers across North America, empowering a commitment to safety for both manufacturers and regulators.

Testing and Certification services for low and medium voltage distribution

Medium Voltage Distribution Equipment

• Transformers, Distribution, over 600 volts​
• Switchgear, Metal Enclosed, over 600 volts
• Circuit Breaker Switchgear, Metal Enclosed, over 1000 volts

Low Voltage Distribution Equipment

• Busways and Associated Fittings
• Motor Control Centers
• Panelboards
• Automatic transfer Switches for use in Emergency Systems

Transformer and Power Supply

• General Purpose Transformers
• Energy Monitoring Current Transformers
• Class 2 and 3 Transformers
• Direct Plug In and Cord Connected Class 2 Power Units​

Utility Metering

• Electric Utility Meters
• Energy Meter (EGRD4)​
• Smart Meter​

Circuit Breaker and Supplementary Power

• Molded Case Circuit Breakers​
• Circuit breaker Enclosures
• Circuit Breaker Accessories

Fuse and Fuseholders

• Special Purpose Fuses
• Thermistor Type Devices​
• Miniature Fuses
• Photovoltaic Fuses
• Cartridge Fuses and Fuseholders

Surge Protective Device

• Photovoltaic Systems​
• DC Power Systems​

Capacitor Products and Systems

• DC and Electrolytic Capacitors

Special Protection Device

• Ground Fault Circuit Interrupters
• Appliance Leakage Current Interrupters
• Ground Fault Protection
• Arc Fault Circuit Interrupters

Solid State Overcurrent Protector

• Low Voltage Solid State Overcurrent Protectors
• Special Purpose Solid State Overcurrent Protectors
• Surge Protective Devices

EMI Appliance Filter

• Appliance Filters
• Electromagnetic Interference Filters
• Electromagnetic Interference Filters Certified to IEC Standards

Conduit and Tubing System

• Conduit Fittings
• Conduit and Cable Hardware
• Electrical Metallic Tubing
• Connector

Mechanical Wiring Support Equipment

• Metallic Outlet Boxes​
• Outlet Bushings and Fittings
• Nonmetallic Outlet Boxes and Covers
• Cable Trays
• Wireways

Electrical Connectivity Device and Wiring System

• Electrical Connectors​
• Terminal Blocks
• Wire Connector
• Attachment Plugs
• Cable Assemblies and Fittings
• Receptacles for Plugs

Lightning and Grounding Testing Certification and Inspection Services​

• Grounding and Bonding Equipment
• Lightning Conductors
• Lightening Protection Installations to UL 96A or NFPA 780​

Gain increased switchboard design flexibility while potentially reducing testing requirements

Our General Coverage program for UL 891, the Standard for Switchboards, aims to assist manufacturers in bringing innovative, quality products to the market. UL Solutions supports you through the process with expert insight, support and services.

Low and medium voltage power distribution service offerings

Meter Evaluations and Certification

New and complex meter technologies can pose significant risks to your business. We’ll help you overcome business risks — one challenge at a time.

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Medium Voltage Distribution Equipment Testing and Certification

We can quickly and easily meet your compliance needs by providing third-party testing and certification of your equipment.

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Capacitor Products and Systems Certification Services

UL Solutions helps low- and medium-voltage power distribution product manufacturers manage ever-evolving product safety, performance and interoperability needs.

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Circuit Breaker and Supplementary Protector Services

Providing Global Market Access solutions for mold-case circuit breakers for the UL Mark in North America and for markets around the world.

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GFCI Personal Protection Devices Testing and Certification

Providing testing and certification services for all types of Class A GFCIs.

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Arc Fault Circuit Interrupter (AFCI) Device Testing and Certification

Offering testing and certification services for AFCI protection devices.

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EMI Appliance Filter Testing and Certification Services

Helping you achieve accelerated market access by bundling certifications for UL Solutions, CSA and IEC/EN standards.

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Solid State Overcurrent Protection Devices Certification

Providing Global Market Access solutions for solid-state protectors for the UL Mark in North America as well as global certifications.

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Surge Protection Device Testing and Certification Services

Providing investigations, testing and certification services for surge protective devices.

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Fuse and Fuseholders Services

Accelerating your time to market with combined testing of fuses and by bundling certifications for UL Mark in North America and for global markets.

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Attachment Plug and Receptacle Safety Evaluations

Helping you quickly and efficiently navigate through safety evaluations for receptacles and attachment plugs.

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Connector Certification Services

Our connector certification solutions are available for the U.S. as well as Canada and Mexico. International certification options can help open new opportunities and markets.

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Power Strips Testing and Certification

Testing and certifying furniture power distribution units, multioutlet assemblies and relocatable power taps.

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Grounding and Lightning Protection Component Evaluations

Helping you quickly and efficiently navigate through safety evaluations for lightning protection components, and grounding and bonding equipment.

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Mechanical Support and Assembly Services

Testing and certifying cable trays; conduit, conduit fittings and conduit/cable support; and metallic and nonmetallic outlet boxes and cover plates.

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Related industrial areas of focus

Industrial Machinery and Automation

We help ensure that you are safely and securely integrating your products and equipment into industrial machines and processes, as well as on the factory floor and in end-use applications.

Instruments and Controls

Navigate the complex technical and regulatory challenges of today’s electronic-based landscape with confidence.

Manufacturing Facilities

With extensive expertise and a holistic approach to safety, UL Solutions can collaborate with you to help ensure your manufacturing facility meets applicable regulations and provide credibility to your efforts.

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Global Market Access Services

From regulatory expertise to smart compliance tools, UL Solutions can help you bring products to global markets.

Hazardous Locations

Our advisory, auditing, testing and certification verification and training services can help you get the HazLoc compliance credentials you need to compete in the complex global supply chain.

Functional Safety

We navigate the complex technical challenges of today’s functional safety landscape to help you improve the safety of your products and systems.

Industrial Cybersecurity Solutions

Advisory, testing and certification services to help organizations manage cybersecurity risks and validate cybersecurity capabilities.

Wireless Device EMC Testing and Certification

Global network of EMC laboratories with state-of-the-art emission and immunity testing technologies to help you meet market requirements.

Advisory

Leverage our expertise, knowledge and resources to identify new opportunities.

Marketing Claim Verification

Objective marketing claims are critical to the decision-making process of buyers and consumers around the world. Our marketing claim Verifications help brands deliver trust to those looking to make tough buying decisions.

Knowledge Solutions, Industry and Product Training

Offering a competitive edge that drives tangible results to empower people, protect lives, and drive business success.

Data Acceptance Program (DAP)

Providing a means for UL Solutions to accept externally generated test data in support of UL Mark certification. While we maintain extensive test facilities, customers can also use their own or third-party facilities for product testing via this program.

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