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OVERVIEW
Official designation: Allen-Bradley 140UE-L5X3 (Bulletin 140UE, Molded Case Circuit Breaker)
Role/Application: Three-pole, L-frame IEC-rated MCCB designed for industrial power distribution, providing electrical circuit protection up to 630 Amps at 400 Volts AC.
KEY SPECS SUMMARY
Power: 400 Volts AC
Interfaces / Ports: Accepts field-installed terminal lugs
Indicators: N/A
Operating Temp: Minus 25 degrees C to 60 degrees C
Platform / Compatibility: Bulletin 140UE L-frame
Limit: 50 kA minimum interrupting capacity at 400 Volts
Lifecycle: Discontinued
FREQUENTLY ASKED QUESTIONS
Technical Specifications:
Q: What is the rated impulse withstand voltage Uimp for the 140UE-L5X3 breaker?
A: The rated impulse withstand voltage is 6 kV, corresponding to Overvoltage Category III.
Wiring & Installation:
Q: What are the primary dimensions of the 140UE-L5X3 breaker in millimeters?
A: The dimensions are 258 millimeters high, 140 or 184 millimeters wide, and 104 millimeters deep.
Troubleshooting & Compatibility:
Q: Does the 140UE-L5X3 include overload protection in its frame only configuration?
A: The 140UE-L5X3 is a frame only device, and the specific trip unit protection type is variable.
Replacement & Upgrades:
Q: What is the recommended replacement series for the discontinued Bulletin 140UE MCCBs?
A: Refer to the latest manufacturer manual for the specific replacement, likely in the Bulletin 140G series.
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