Allen-Bradley | 140U-J2D3-D17 | Circuit Breaker | 175A | 3-Pole | 600V

Engineered for reliable protection in industrial power systems, the Allen-Bradley 140U-J2D3-D17 circuit breaker delivers precise overload and short-circuit protection in a compact, three-pole package. With a 175A rating and 600V capability, this unit is designed for maintenance, retrofit, and replacement projects where exact specifications matter, ensuring continuity of operation in demanding environments.

Key specifications

• Part number: 140U-J2D3-D17
• Amperage rating: 175A
• Poles: 3-Pole
• Voltage rating: 600V
• Intended use: maintenance, retrofit, and replacement in compatible systems

Why this breaker stands out

• Directly aligned with Allen-Bradley standards to maintain consistent performance within existing panels and switchgear that require the 140U-J2D3-D17 part.
• Three-pole design supports balanced protection across three-phase electrical systems, helping reduce the risk of uneven load conditions.
• 600V rating broadens compatibility with industrial distribution setups, enabling safer operation in higher-voltage applications without changing the surrounding equipment.
• Specifically chosen for scenarios where exact matching specs are essential—retrofits, replacements, and maintenance cycles where uptime and reliability matter.

Ideal use cases

• Maintenance: swap in the exact part to restore protection quickly when a breaker wears or trips frequently.
• Retrofit projects: upgrade legacy panels to current-spec protection without overhauling the entire electrical architecture.
• Replacement planning: keep a spare on hand for critical systems to minimize downtime during outages or servicing.

Fit, compatibility, and practical tips

Before ordering, confirm fit and ratings to ensure seamless integration with your equipment. The part number is the best reference for compatibility, so double-check that 140U-J2D3-D17 matches your panel, enclosure, and regional electrical standards. When handling and installing, follow standard electrical safety practices, verify voltage and current requirements on-site, and ensure the surrounding wiring and bus connections are suited to a 3-pole, 600V configuration. Keeping spare breakers in their original packaging can help preserve reliability and performance when a replacement is needed.