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

EIN Sept Products Weidmuller Miniature Circuit Breakers 400

Sept 1, 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

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

  • Smart Electrification is Paying Off: How Schneider Electric Canada is Balancing the Scales

    Smart Electrification is Paying Off: How Schneider Electric Canada is Balancing the Scales

    December 18, 2025 Questions created by Krystie Johnston, Managing Editor at Kerrwil Media Ltd. Answers to be attributed to Nick Rinaldi, Director of Business Development – Home Builders, Schneider Electric Canada  Canada’s housing market is demanding smarter, more sustainable solutions, and Schneider Electric Canada is helping to lead this transformation. Their innovative residential technologies make homes more energy… Read More…

  • Revolutionary Mono-Strap System Improves Innovative Industrial Helmets

    December 18, 2025 By Krystie Johnston  There is something special about having a passion and putting it to work for a good reason. And that is exactly what STUDSON and HighBar are doing right now with the recent launch of their HighBar-equipped SHK-1 industrial helmet. A revolution in head safety, the concept version was introduced just last year… Read More…