OVERVIEW

Official designation: Allen-Bradley 140U-H0C3-C25 (Bulletin 140U, Molded Case Circuit Breaker)

Role/Application: 3-pole circuit protection device for industrial systems, utilizing fixed thermal and fixed magnetic trip units for robust overload and short-circuit protection.

KEY SPECS SUMMARY

Power: 600 Volts AC maximum

Interfaces / Ports: Bolt-on or End cap terminals

Indicators: Refer to the latest manufacturer manual.

Operating Temp: Refer to the latest manufacturer manual.

Platform / Compatibility: Bulletin 140U H-frame (15 to 125 Amps)

Limit: Interrupting capacity 100 kA at 480 Volts AC

Lifecycle: Discontinued

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What are the primary protective functions provided by the 140U-H0C3-C25 breaker?

A: It features fixed thermal (overload) and fixed magnetic (short-circuit) protection.

Wiring & Installation:

Q: What is the typical mounting style for the Bulletin 140U H-frame breakers?

A: The breaker is designed for installation using bolt-on terminals on panel boards.

Troubleshooting & Compatibility:

Q: What is the maximum continuous voltage rating for the H-frame 140U breaker line?

A: The H-frame 140U Molded Case Circuit Breaker has a maximum rating of 600 Volts AC.

Replacement & Upgrades:

Q: Is the Allen-Bradley 140U-H0C3-C25 circuit breaker still actively manufactured?

A: No, the Bulletin 140U series, including this H-frame model, has been discontinued.