140G-J3H4-D25

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Overview of Allen Bradley 140G-J3H4-D25

The Allen Bradley 140G-J3H4-D25 is a 250 Amp Molded Case Circuit Breaker (MCCB) in the J frame series, engineered for industrial power distribution and protection. Featuring 4 poles and an electronic LSI (Long time, Short time, Instantaneous) trip unit, it offers reliable trip performance customized via DIP switches for flexible protection settings. The breaker supports a high interrupt rating of 35 kA, suitable for demanding three-phase electrical systems. It combines compact design with robust switching capabilities, making it ideal for use in low voltage power systems to safeguard equipment and personnel from overloads and short circuits.

Key Features of Allen Bradley 140G-J3H4-D25

  • 250 Amp rated current with 4-pole configuration for comprehensive circuit protection.
  • Electronic LSI trip unit for adjustable protection settings optimized via DIP switches.
  • High interrupt rating of 35 kA at 480V AC, ensuring safety under fault conditions.
  • J frame compact design enables installation in space-constrained panels.
  • Includes auxiliary contacts: 1 Normally Open and 1 Normally Closed, plus an alarm contact rated at 250V.
  • Suitable for both three-phase and single-phase systems with neutral connections.
  • Can protect equipment against overload, short circuit, and ground faults.
  • Compatible with various terminal lugs available as accessories for flexible wiring.
  • Tested and certified for industrial reliability and electrical compliance.

Technical Specs of 140G-J3H4-D25

Specification Details
Frame Size J Frame
Rated Current 250 A
Number of Poles 4
Interrupt Rating 35 kA (at 480V AC)
Trip Unit Type Electronic LSI (Long, Short, Instantaneous)
Auxiliary Contacts 1 NO, 1 NC + Alarm (250V)
Voltage Rating Up to 600V AC
Standards UL listed, IEC compliant

Applications / Use Case

The Allen Bradley 140G-J3H4-D25 is widely used in industrial and commercial electrical distribution systems requiring reliable overload and short circuit protection. Its 4-pole design makes it suitable for three-phase power systems with a neutral conductor, providing isolation and protection across all conductors. Typical applications include motor control centers, machinery control panels, HVAC systems, and power distribution units. This breaker enhances system safety by minimizing downtime and preventing damage due to electrical faults. Its adjustable electronic trip settings allow customization for varying load characteristics, making it ideal for facilities with diverse equipment and power needs.

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140G-J3H4-D25

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Does it come with a warranty?

Yes, All products are offered wth 1-Year warranty.

What is the condition of the product?

All products sold are New & Unused.

How fast is shipping?

All products are delivered within 2-8 business days depending on our stock location.

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