Allen-Bradley | 140U-L3D3-D60 | Circuit Breaker | 3-Pole | 600V

Allen-Bradley 140U-L3D3-D60 circuit breaker — a purpose-built, three-pole protection device designed for demanding industrial power systems. This unit is ideal for maintenance, retrofit, and replacement projects where exact specifications are required to keep your electrical distribution running safely and reliably.

Exact fit, proven reliability

Highlighted by its 3-pole configuration and a 600V rating, the 140U-L3D3-D60 is built to safeguard three-phase circuits common in manufacturing, processing, and large commercial environments. When exact compatibility matters, rely on the part number as your strongest reference point for matching mechanical fit, trip characteristics, and electrical ratings.

Key specifications at a glance

• Poles: 3-Pole
• Voltage: 600V
• Part number: 140U-L3D3-D60

What makes this breaker unique

Authentic Allen-Bradley design means consistent performance, predictable trip behavior, and seamless integration with existing panels and feeders that expect the 140U family’s form and function. This isn’t a generic replacement—it's a precise OEM solution intended to match the original equipment's electrical characteristics and mechanical footprint, reducing downtime and compatibility concerns during maintenance or upgrades.

Ideal use scenarios

• Maintenance outages where exact 140U series compatibility is required
• Retrofits to upgrade or restore protective devices in three-phase distributions
• Replacement for aging equipment in control panels, switchgear, and motor control centers

Compatibility and installation guidance

Before ordering, verify fit and ratings to ensure a seamless replacement. The part number is the most reliable reference for compatibility with your panel or switchgear. Always install by qualified personnel, follow applicable electrical codes, and de-energize equipment before service.

Practical tips for best results

• Cross-check the panel model and any documented cross-reference guides against 140U-L3D3-D60 to confirm exact fit.
• Keep spares in a dry, clean environment to preserve contact surfaces and trip mechanisms.
• Document the replacement with the part number and date for future maintenance planning.

Designed to deliver dependable protection in demanding industrial settings, the Allen-Bradley 140U-L3D3-D60 circuit breaker helps you maintain safe, uninterrupted power distribution. Use the part number as your primary reference for compatibility, and rely on its three-pole, 600V specification to meet your three-phase protection needs.