UL 916 2021-10 PDF

Full title and description

UL 916 — Standard for Energy Management Equipment, edition published October 2021. This standard sets safety requirements and test procedures for energy management equipment (EME) including control and monitoring devices, subassemblies, and associated components used in energy management systems for buildings and industrial applications.

Abstract

UL 916 (2021-10) establishes safety criteria, construction requirements, electrical and mechanical tests, marking and documentation requirements, and performance considerations for devices intended to manage, monitor or control energy-consuming equipment. The standard addresses risks such as electric shock, fire, mechanical hazards, and functional failures that could affect safety. It is used to evaluate standalone energy management equipment and certain subassemblies for compliance with recognized safety practices.

General information

• Status: Active (published)
• Publication date: October 2021
• Publisher: Underwriters Laboratories (UL)
• ICS / categories: 29.120.01 (Electrical equipment and appliances) / Product safety standards; Energy management
• Edition / version: 2021-10 edition
• Number of pages: Typically around 50–120 pages (varies by published compilation and annexes)

Scope

This standard applies to energy management equipment intended to control, monitor, or manage energy-consuming devices and systems. It covers construction, electrical, mechanical, environmental, and performance tests for equipment such as load controllers, energy managers, subpanel controllers, gateway devices, and related control modules. UL 916 focuses on safety aspects rather than functional interoperability; it does not replace equipment-specific product standards where those exist. It may include requirements for power supplies, communication interfaces, switching elements, enclosures, markings, and instructions.

Key topics and requirements

• Construction and materials requirements for enclosures and internal components to reduce fire and shock hazards.
• Electrical insulation, grounding, and protection against electric shock under normal and fault conditions.
• Temperature rise and overload testing of current-carrying parts and components.
• Short-circuit and fault-current testing for switching devices and protective elements.
• Verification of control circuits, relays, contactors, solid-state switching, and power supplies.
• Environmental and mechanical tests including vibration, humidity, and mechanical endurance where applicable.
• Requirements for marking, labeling, installation instructions, and operation manuals.
• Guidance on communication interfaces and isolation where networks are present (safety-related isolation, not interoperability).

Typical use and users

Manufacturers of energy management devices, component suppliers, test labs, certification bodies, electrical contractors, building automation and controls engineers, and product compliance teams use UL 916 to design, test, and certify equipment for safe operation in residential, commercial, and industrial installations. Specifiers and authorities having jurisdiction reference the standard when requiring recognized safety certification for energy management products.

Related standards

Standards commonly referenced with UL 916 include other UL/ANSI product safety standards for controls and electrical equipment (for example standards for relays, power supplies, and enclosures), electrical codes and installation standards, and international standards addressing functional performance and interoperability. Products may also be evaluated to IEC/EN counterparts for global markets and to UL 50/50E for enclosures, UL 508 for industrial control equipment, and applicable electromagnetic compatibility and communication protocol standards.

Keywords

UL 916, energy management equipment, EME, energy control, safety standard, Underwriters Laboratories, electrical safety, load control, building automation, certification

FAQ

Q: What is this standard?

A: UL 916 is a safety standard published by Underwriters Laboratories that specifies requirements and test procedures for energy management equipment used to control, monitor, or manage energy-consuming devices.

Q: What does it cover?

A: It covers construction, electrical safety, mechanical endurance, temperature and overcurrent testing, labeling, and documentation for devices such as load controllers, energy controllers, gateways and certain subassemblies—focusing on hazards like electric shock and fire.

Q: Who typically uses it?

A: Device manufacturers, test laboratories, certification bodies, electrical contractors, and building automation engineers use UL 916 to ensure products meet recognized safety requirements and to obtain certification or approvals.

Q: Is it current or superseded?

A: The version referenced here is the October 2021 edition. Users should check with the publisher or certification body to confirm whether a more recent revision or errata has been issued.

Q: Is it part of a series?

A: UL 916 is part of UL’s portfolio of product safety standards related to electrical equipment and controls; products may also need to meet other specific UL standards depending on device type and application.

Q: What are the key keywords?

A: Energy management, load control, electrical safety, UL 916, energy management equipment, certification, building automation.