What is the difference between UL 508 and UL 508A?

What is the difference between UL 508 and UL 508A?

UL 508 is the standard for industrial control equipment, whereas UL 508A is for industrial control panels. Harmonic filters are available as both UL 508 and UL 508A as they fall into both categories. UL 508 can be viewed as a product level specification.

What is the UL508A standard?

What is UL Standard 508A? UL 508A is the UL standard for the construction of Industrial Control Panels. This document gives guidelines to panel builders on various issues including proper component selection, wiring methods and calculation of short circuit current ratings.

Is UL508A accepted in Canada?

For control panels operating under 600 Volts AC or less in general industries, the requirements set within UL 508A are applicable as per the ANSI/NFPA 70 code. In Canada for air conditioners under 600 Volts, Part I of the Canadian Electric Code comes into effect.

What is UL 508A Supplement SB?

UL 508A Supplement SB UL508A is a safety standard for Industrial Control Panels adopted by Underwriters Laboratory which is an approved method in determining SCCR referenced by NEC article 409.

What does UL508 cover?

1. What is UL508? UL 508, the Standard for Safety For Industrial Control Equipment, covers industrial control and related devices rated 1500 volts or less used for starting, stopping, regulating, controlling, or protecting electric motors.

What is UL 508A certification?

UL 508A certification is a directive for the industrial control panel. Electrical inspectors look for this mark as evidence of third-party certification. This is important to the municipal inspection authority and the panel purchaser. It’s a mark that shows the panel’s compliance with the acceptable safety standards.

Is UL recognized in Canada?

The ULC Mark is issued by Underwriters Laboratories of Canada, a member of the UL family of companies. This mark is nationally recognized in Canada for many types of products, including building materials and fire protection and suppression products.

What are the 3 UL industrial control panel labels?

Within UL product category NITW, there are three main product identities associated with industrial control panels, “Enclosed Industrial Control Panel,” “Open Industrial Control Panel” or “Industrial Control Panel Enclosure.” These specific product identities need to be considered by the Authority Having Jurisdiction ( …

Is UL OK for Canada?

Is UL and ULC the same?

UL in the U.S. and Canada It’s true that Underwriters Laboratories serves a number of countries, but in particular, the company is an accredited standards developer in both Canada and the U.S. under the designations ULC Standards and UL standards respectively.

What does ul508 mean?

UL 508, the Standard for Safety For Industrial Control Equipment, covers industrial control and related devices rated 1500 volts or. less used for starting, stopping, regulating, controlling, or. protecting electric motors. This equipment is for use in accordance.

What is ul61010?

UL has revised UL 61010-1, the standard for “Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use – Part 1: General Requirements.” The third edition is being issued to include revisions to add new Annex DVE for permanently installed equipment.

What does ul 508A cover?

UL 508A –The Standard  The Standard Covers… Industrial Control Panel Assemblies which may contain: Motor controllers Overload relays Fused Disconnects / Circuit Breakers Buttons, Switches, Timers & Controllers Wiring Terminals Enclosures

What are the ul508a requirements for electrical panel evaluation?

Evaluate panel per UL508A, Supplement B (required by 4-06 if jurisdiction does not adopt 2005 NEC earlier). All components in power circuit must have ratings Ratings of starters are typically based on HP rating Supplement SB, Table SB4.1, provides tables of components w/o marked short circuit ratings Applying the Standard z Supplement SB

What is Article 409 of ul508a?

The new Article 409, titled “Industrial Control Panels”, was introduced.  UL508A definition: “2.27 INDUSTRIAL CONTROL PANEL FOR GENERAL USE –A control panel intended to be installed in accordance with the general use requirements in Chapter 4 of the National Electrical Code, ANSI/NFPA 70.” ©2016 Eaton. All Rights Reserved.8

What is the difference between ul 98 and UL 489?

•UL 98 – Disconnect Switches •UL 489 – Molded Case Circuit Breakers •UL 508A – Industrial Control Panels •UL 508E – Self Protecting MMPs