140UT-D7D3-B80

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Overview of Allen Bradley 140UT-D7D3-B80

The Allen Bradley 140UT-D7D3-B80 is a molded case circuit breaker designed for comprehensive electrical protection in industrial control systems. This D-frame device provides reliable overcurrent and short-circuit protection with a rated current of 8 amperes across three poles. Built to UL 489 standards, the 140UT series delivers dependable performance in closed environments free from hazardous dust, explosive atmospheres, or corrosive gases. The breaker features fixed thermal and fixed magnetic trip characteristics, with thermal response calibrated at 15 to 20 times the nominal current rating. With a breaking capacity of 65 kA at 480Y/277V AC, this circuit breaker handles demanding fault conditions while maintaining compact dimensions for space-efficient panel integration. The fixed mount configuration simplifies installation in motor control centers, distribution panels, and industrial machinery applications where precise current protection is critical for equipment longevity and operational safety.

Key Features of Allen Bradley 140UT-D7D3-B80

  • Three-pole configuration rated for 8A nominal current
  • Breaking capacity of 65 kA at 480Y/277V AC
  • Fixed thermal trip response: 10 seconds at rated current
  • Fixed magnetic trip activation: 4 milliseconds
  • Magnetic trip range: 15-20x nominal current (In)
  • UL 489 certified molded case design
  • D-frame construction for compact panel mounting
  • Current limiting technology for enhanced protection

Technical Specs of 140UT-D7D3-B80

Model Number 140UT-D7D3-B80
Frame Size D Frame (40A)
Poles 3-pole
Rated Current 8A
Breaking Capacity 65 kA at 480Y/277V AC
Trip Type Fixed Thermal / Fixed Magnetic
Magnetic Trip Range 15-20x In
Thermal Trip Time 10 seconds
Magnetic Trip Time 4 milliseconds
Standard UL 489
Mounting Fixed mount

Applications / Use Case

The Allen Bradley 140UT-D7D3-B80 circuit breaker serves critical protection roles in motor control centers, industrial machinery, distribution panels, and automation systems requiring precise 8-amp circuit protection. This three-pole device excels in applications where rapid fault detection is essential, with its 4-millisecond magnetic trip response preventing equipment damage during short-circuit conditions. Manufacturing facilities use this breaker to protect control circuits, small motors, and instrumentation panels. The 65 kA breaking capacity makes it suitable for high-fault-current installations typical in large industrial plants and commercial buildings. Control panel builders specify this model for switchgear assemblies where UL 489 compliance is mandatory. Process automation systems benefit from its reliable thermal protection, which prevents nuisance tripping while safeguarding connected loads. The D-frame construction fits standard panel cutouts, allowing straightforward integration into existing electrical infrastructure without modifications. Distribution systems operating at 480Y/277V AC gain dependable branch circuit protection, while the fixed mount design ensures stable mechanical connection throughout the equipment lifecycle.

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140UT-D7D3-B80

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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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