Description 

The Allen-Bradley 140UT-D7D3-C30 is a compact, high-performance molded case circuit breaker designed for current-limiting protection in a variety of electrical distribution applications. It offers 3-pole protection with a 30 A fixed thermal magnetic trip configuration.

Technical Specifications 

Information About 140UT-D7D3-C30

The 140UT-D7D3-C30 is part of Allen-Bradley’s D-frame molded case circuit breaker series engineered for high-interrupt capacity and versatile application scenarios. Designed to safeguard feeder and control circuits, HVAC systems, and lighting loads, it supports 480 VAC operations and carries a 65 kAIC interrupt rating. This unit delivers reliable performance in demanding environments with a temperature tolerance from -25°C to 50°C. With its fixed thermal magnetic trip and current-limiting type, it provides fast, precise interruption of fault currents to protect downstream equipment.

Key Features:

• Amperage: 30 A nominal current capacity suitable for light to medium-duty power distribution.
• Applications: Engineered for backfeeding, feeder circuits, control circuits, HVAC systems, HID lighting, and SWD-rated loads at 15 and 20 A.
• Frame: Built on a compact and robust D-frame architecture ideal for panel integration.
• Interrupt Rating: High fault-clearing capacity of 65 kAIC at 480Y/277 VAC ensures enhanced safety.
• Number of Poles: 3-pole configuration provides simultaneous protection across three conductors.
• Temperature Rating: Operational temperature range from -25°C to 50°C supports reliable performance in varied conditions.
• Trip Type: Fixed thermal magnetic trip unit for consistent overload and short-circuit protection.
• Type: Current-limiting breaker that minimizes let-through energy during fault conditions.
• Voltage: Rated for 480 VAC distribution systems in commercial and industrial setups.

The 140UT-D7D3-C30 delivers high-interrupting performance and rugged reliability across a range of demanding electrical distribution environments.