What is BS EN 61812-1 - Time relays for industrial and residential use about?
BS EN 61812-1 is a British standard as a part of the IEC 61812 series that applies to time relays for industrial applications (e.g. control, automation, signal and industrial equipment). BS EN 61812-1 also applies to time relays for automatic electrical controls for use in, on, or in association with equipment for residential and similar use.
The term “relay” as used in BS EN 61812-1 comprises all types of relays with specified time functions, other than measuring relays.
Who is BS EN 61812-1 - Time relays for industrial and residential use for?
BS EN 61812-1 on time relays for industrial and residential use is useful for:
- The automation industry
- Industrial equipment manufacturers
- The HVAC industry
- The electrical industry
- Testing and inspection centres
- The machinery industry
Why should you use BS EN 61812-1 - Time relays for industrial and residential use?
Time relays can be triggered in a variety of ways to reduce the amount of energy consumed to start huge industrial machinery or to turn lights or machines on and off at specific periods. Timing relays are widely employed to provide time-delayed switching in industrial applications, HVAC systems, and building services. To start a motor, control an electrical load, or just automate a process, for example. They are critical for specific logic requirements.
BS EN 61812-1 provides its users with provisions for testing, documentation, and marking, and addresses the heating of terminals and insulation. Using BS EN 61812-1 guidelines ensures the strength of materials, electromagnetic compatibility, safety and protection, and durability against fire and other hazards.
What’s changed since the last update?
BS EN 61812-1:2011 supersedes EN 61812-1:1996, which is withdrawn. BS EN 61812-1:2011 includes some technical changes with respect to EN 61812-1:1996. These include:
- Update of references
- Addition of terms and definitions more commonly used by industry
- Addition of timing charts to help explain terms and definitions involving a sequence of events
- Renumbering of clauses to bring them into a more logical order
- Addition of provisions for residential use
