Merz UL 508 Non-Fusible Disconnect Switches from AutomationDirect

October 15, 2020

AutomationDirect has added enclosed versions and non-enclosed DIN rail and panel/door mount versions of Merz disconnect / motor control switches.

Non-enclosed UL 508 / UL 60947 600VAC manual motor controller switches (from $15.25) are designed for snap-on DIN rail mounting, base mounting or front mounting in a door. The terminal screws are all accessible from one side. ML1 compact switches are available for applications from 16A to 40A. For more demanding applications loads, the ML2 to ML3 series accommodates loads from 63A up to 125A. The new series includes a complete line of accessories such as: operating handles, shafts, auxiliary contacts, terminal shrouds and more.

The Merz UL 508 disconnect switch with enclosure (starting at $50.00) is a non-fusible, UL 508 / UL 60947 manual motor controller 600VAC “suitable as motor” disconnect switch rated at 25-125A (3-pole) and 40-63A (3-pole + Neutral). The gray polycarbonate plastic enclosure with red handle is NEMA/UL Type 1, 3R, 4, 4X rated.

Also available from AutomationDirect are Merz rotary cam switches. Priced from $21.00, these motor transfer (changeover) cam switches allow smooth transfer of one motor operation to another, while motor reversing cam switches allow smooth motor direction change. Merz rotary cam switches, in ratings up to 80A, are available with up to 3 poles, with a 5kA SCCR rating.

Learn more by visiting: www.automationdirect.com/disconnect-switches.

Related Articles



Editor’s Pick: Featured Article

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s scalable engineering software, u-control 2000, adapts individually to your requirements. And, the u-control is powerful, compact and fully compatible with Weidmüller’s I/O system u-remote. This article looks at what makes u-control the heart of your automation.

Programmable logic controllers (PLCs) are one of the main components of any automated system. A typical control system has inputs, outputs, controllers (i.e., PLCs), and some type of human interaction with the system, a human machine interface (HMI), for example.

Read More



Latest Articles

  • Should You Buy a New Robot or Invest in Refurbishing a Used One?

    February 11, 2025 Robot replacement and remanufacturing for extended lifespan Should you buy a new robot or invest in refurbishing a used one? Giving a robot a second life often saves time and, in many cases, money, but it also results in lower CO2 emissions. At Frosta’s plant in Bydgoszcz, there were two robotic lines where… Read More…

  • How to Choose the Right Power Distribution Unit for Your Data Centre IT Enclosure

    February 11, 2025 In today’s data centres, Power Distribution Units (PDUs) have evolved far beyond their origins as basic power strips. As IT infrastructure becomes more complex and power demands within racks vary, choosing the right PDU is critical to optimizing data centre performance, ensuring uptime, and managing power consumption efficiently. From basic power distribution to advanced… Read More…