What does UL 508A mean?

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.

What is UL 508A MTR?

UL 508A Manufacturer Technical Representative (MTR) Program The examination is administered online through UL and is available on-demand through any computer, laptop or tablet with internet access. Upon successful completion of the UL 508A MTR examination, the individual is qualified for a three year period.

What 2 components are allowed to be used in a UL 508A listed panel?

UL-508 listed components can be used freely in a UL-508A panel design. These tend to be components that are designed so that they will be safe no matter how they are hooked up (within reason). Examples would be DC power supplies, industrial PCs, and PLC components.

What is the maximum input supply voltage that can be in a UL 508A listed panels?

1000 volts
1.1 These requirements cover industrial control panels intended for general industrial use, operating from a voltage of 1000 volts or less.

Is UL recognized in Canada?

In 2013, UL was accredited by the Standards Council of Canada (SCC) as a nationally recognized Standards Development Organization (SDO) to develop National Standards of Canada (NSCs).

What are the 4 elements of a UL listing mark for North America?

The UL Classification Marking appearing on a product typically consists of four required elements:

• UL in a circle symbol.
• Word Classified.
• Product name or company name/file number.
• Issue/serial number or alphanumeric control number.

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 ( …

What type of enclosure may a UL 508A panel shop?

According to UL (Underwriters Laboratories), a type 1 508A electrical enclosure is “an assembly incorporating two or more pieces of industrial control equipment or related control circuit devices, provided with interconnecting wiring and terminals for connections in the field.” This type of enclosure is meant for …

Is CSA as good as UL?

Unlike the UL Mark, a CSA-Listed designation holds value all around the world, not only in its country of origin. For a product to receive this prestigious label, it must also pass extensive tests that align with standards from the following certifying bodies: American National Standards Institute (ANSI) UL.

Is CSA and UL the same?

The fact is, Underwriters Laboratories (UL) and CSA Group (CSA) are both Nationally Recognized Testing Laboratories (NRTL) that test to the same harmonized Canadian Electrical Code (CEC) and National Electrical Code (NEC) standards, making their certifications virtually interchangeable.

What is the difference between UL Listed and UL recognized?

While not always straightforward, the key takeaway is that “UL Listed” is meant for self-contained products such as external power adapters and “UL Recognized” is for components comprising a larger system like internal ac-dc power supplies.

What is the difference between ul 508A and ul698a?

UL 508A provides safety certification for industrial control panels. UL698A provides safety certification for industrial control panels with intrinsically safe (IS) circuits. The UL 508A panel shop list can be found on the UL Product iQ database using the UL Category Control Nos listed below.

What is a ul508a panel?

Underwriters Laboratories (UL) is an independent testing company that provides product safety standards and third party product safety certification. A UL508A Panel is an electrical control panel with a UL508A Label. This certifies it meets the UL508 safety standard and was produced by panel shop with UL 508A certification.

How much does it cost to get ul 508A certified?

Initial and annual certification fees are ~$4K. UL 508A certification allows a panel shop to independently design and produce UL 508A labeled panels certified to meet a known safety standard and traceable back to the panel shop. UL 508A provides safety certification for industrial control panels.

How do I Make my panel conform to the UL 508 standard?

Tell them your situation and ask them to schedule a field evaluation. Cost will vary, but it will probably be more than $2,000. Option 2 – Contact a UL 508A Panel Shop near you. Tell them your situation and have them evaluate the work required to make your panel conform to the UL 508 standard.