140UT-D7D3-B50

Overview of Allen Bradley 140UT-D7D3-B50

The Allen Bradley 140UT-D7D3-B50 is a compact molded case circuit breaker engineered for reliable protection of electrical circuits in industrial environments. With a 5 amp current rating and three-pole design, this model offers secure circuit interruption and is suitable for use in panels, machinery, and automation systems. Built to comply with UL 489 and global safety standards, the 140UT-D7D3-B50 helps to prevent equipment damage from overloads and short circuits. Its D-frame size enables adaptation into DIN-rail mounted installations, supporting space-efficient panel designs. The breaker’s fixed thermal and fixed magnetic trip mechanisms deliver dependable protection across demanding applications requiring high interrupt capacity, making it a dependable choice for industrial automation and control projects.

Key Features of Allen Bradley 140UT-D7D3-B50

• Three-pole configuration for balanced circuit protection
• Rated 5A with interrupting capacity up to 65-100kA at 480Y/277V AC
• Fixed thermal and fixed magnetic trip for reliable overload and short-circuit response
• DIN rail mounting for easy panel integration
• Compliant with UL 489, CE, CCC, and other international certifications

Technical Specs of 140UT-D7D3-B50

• Rated Current: 5 A
• Voltage: Up to 277/480V AC
• Pole Configuration: 3 pole
• Interrupt Rating: 65-100 kAIC (at 480Y/277V AC)
• Trip Type: Fixed thermal/fixed magnetic
• Frame Size: D Frame
• Mounting Type: DIN rail
• Dimensions: 128 mm (H) x 94 mm (W) x 46 mm (L)
• Weight: 0.45 kg
• Certifications: UL, CE, CCC, Eurasion Economic Community

Applications / Use Case

The Allen Bradley 140UT-D7D3-B50 is designed for industrial circuit protection where reliability and quick response to fault conditions are crucial. This model is well-suited for use in motor control centers, automation panels, machinery, and distribution boards that operate at low voltages but require high interrupting capacity. Its strong current-limiting capability makes it useful in environments with demanding fault current requirements, such as manufacturing, processing, and material handling plants. Machine builders and OEMs benefit from its compact size and DIN rail compatibility, simplifying installation and maintenance. Facilities managers and control engineers can depend on the 140UT-D7D3-B50 to minimize downtime by protecting valuable equipment from overloads and short circuits.

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