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Relevant News and Changes to UL 508A 3rd Edition 2022

December 8, 2022

Webinar Date: December 12, 2022 – 9 AM & 4 PM

What impact does the new UL 508A have on the electrical design of control panels for the North American market?

Are you up to date with the latest revision and changes to the UL 508A standard for industrial control panels, published in July 2022? Siemens would like to present you the relevant changes and explain to you the impact on the electrical engineering of industrial control panels.

Join Siemens’ webinar and you will learn more about:

  • Overview of editions and revisions including effective dates of the UL508A standard
  • Changes in the design of power and control circuits
  • Usage of manual motor controllers as supplementary protection for power supplies
  • Determination of the overall SCCR including DIN rail terminals
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Register HERE for the 9 AM showing, or HERE for the 4 PM showing.

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Editor’s Pick: Featured Product News

Siemens: SIMOVAC Non-Arc-Resistant and SIMOVAC-AR Arc-Resistant Motor Controllers

The Siemens SIMOVAC medium-voltage non-arc-resistant and SIMOVAC-AR arc-resistant controllers have a modular design incorporating up to two 12SVC400 (400 A) controllers, housed in a freestanding sheet steel enclosure. Each controller is UL 347 class E2, equipped with three current-limiting fuses, a non-load-break isolating switch, and a fixed-mounted vacuum contactor (plug-in type optional for 12SVC400). The enclosure is designed for front access, allowing the equipment to be located with the rear of the equipment close to a non-combustible wall.

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Sponsored Content
Electrify Your Enterprise

Power is vital to production, and well-designed control cabinets are key. Allied Electronics & Automation offers a comprehensive collection of control cabinet solutions including PLCs, HMIs, contactors, miniature circuit breakers, terminal block connectors, DIN-rail power supplies, pushbutton switches, motor starters, overloads, power relays, industrial Ethernet switches and AC drives engineered to keep your operations running safely, reliably and efficiently.

Learn more HERE.

Products for Panel Builders

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    Omron: S8NR IP67 Power Supply

    The OMRON S8NR Series is an IP67 rated industrial power supply designed for out of panel installation in harsh environments where dust, moisture, vibration, and accessibility challenges impact reliability. By moving the power supply outside the control panel, S8NR reduces enclosure complexity, electrical labor, and service time while maintaining stable, protected DC power delivery. Read More…

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    In power distribution, heavy-duty machinery and transportation applications, vibrations can weaken a terminal block’s clamping power and loosen wire connections. The resulting power and signal failures can lead to unwanted system downtime, fire and shock risks, or other safety issues. Fortunately, one type of terminal block design makes secure connections possible while also providing easy… Read More…