Weidmuller UL 489 and UL 1077 Listed AC/DC-rated Miniature Circuit Breakers

Weidmuller Miniature Circuit Breakers

Aug 16, 2020

New from Weidmüller: the BR/SUxxxUC Series offers a complete line of UL489 CSA-C22.2 No. 5 and UL1077 CSA-C22.2 No. 235 thermal magnetic type circuit breaker products rated both AC and DC in 1, 2, and 3 pole (AC only), 1-63A (standard values) in any of B, C, or D curves for DIN rail-mounted applications. These circuit breakers are equipped with a positively trip-free snap action toggle actuation mechanism and visual status indication.

The UC Series offers rating 120/240/277/480VAC and 60 (single pole) or 125 (series double pole) VDC of high-rated interrupting capacity. This proven solution protects your wires and cables during short circuit or OL overload situations. Applications include Automotive Manufacturing, Chemical, Oil and Gas, Renewable Energy, Rail Vehicles, Automation, Pharmaceutical and Food, Steel Production, Telecom and Datacom, Lighting Equipment, and Process Control.

Weidmüller compliments this line with control and monitoring attachment modules (aux contact, bell alarm, and shunt trip) as well as a full offering of cuttable busbars and accessories in compliance with the relevant UL standards.

• Common amperage values available 1A to 63A
• Available for B, C or D curve characteristics
• 1-, 2- and 3-pole options
• Snap-together construction (No screws or extra parts needed)
• Wide operating temperature from -35°C…+70°C
• Global Approvals: UL, CSA, IEC, CE
• Optional accessory modules for signalling, change-over and remote tripping
• Optional cuttable busbars and busbar accessories

Go HERE for more information.

Related Articles


Latest Articles

  • Celebrating 30 Years of Innovation and Collaboration at EFC’s 2025 Conference in Niagara

    Celebrating 30 Years of Innovation and Collaboration at EFC’s 2025 Conference in Niagara

    By Luc Rodier, Chair of the Board of Electro-Federation Canada (EFC) The 2025 EFC Conference in Niagara was a landmark occasion—marking 30 years of innovation, collaboration, and collective progress in the Canadian electrical industry. Set against the symbolic backdrop of the Canadian-U.S. border, this year’s theme, Electrifying Connections, couldn’t have been more fitting. As President and… Read More…

  • Industrial Wiring Devices: A Brief Intro and How to Choose Them

    Industrial Wiring Devices: A Brief Intro and How to Choose Them

    June 9, 2025 Introduction: With the multitude of options on the market, it can be difficult to decide whether you need a pin and sleeve wiring device or a plug and connector in your industrial plant or facility. You might find your head swirling with thoughts about which option is best. Or you may not… Read More…

  • Industry Leaders Head to Quebec to Strengthen Energy and Supply Chain Resilience

    Industry Leaders Head to Quebec to Strengthen Energy and Supply Chain Resilience

    June 9, 2025 By Electro-Federation Canada On June 3 and 4, a high-level delegation from Canada’s electrical and automation sector travelled to Montreal and Quebec City for a series of strategic meetings with Quebec government officials and key stakeholders. Organized by Electro-Federation Canada (EFC), this mission underscores the critical role the industry plays in advancing… Read More…

  • Electrifying Connections: A Celebration of Legacy, A Vision for the Future

    Electrifying Connections: A Celebration of Legacy, A Vision for the Future

    June 9, 2025 By Electro-Federation Canada This year’s Annual Industry Conference, held against the breathtaking backdrop of Niagara Falls, Ontario, was a landmark event with more than 710 Electro-Federation Canada community members. More than just a celebration of our shared history, it was a launchpad for new ideas, future-based dialogue, and deeper connections.   The energy and… Read More…


Changing Scene