OVERVIEW

Official designation: Allen-Bradley 140U-H2C3-C60 (Bulletin 140U, Molded Case Circuit Breaker)

Role/Application: H-Frame circuit breaker offering fixed thermal and fixed magnetic protection for industrial low-voltage power distribution, protecting against overloads and short circuits.

KEY SPECS SUMMARY

Power: 600 Volts AC maximum voltage

Interfaces / Ports: Bolt-On terminals

Indicators: Internal trip indicator

Operating Temp: Minus 25 to plus 40 degrees C

Platform / Compatibility: H-Frame (125 A max); Panel Mount

Limit: 60 Amperes rated current

Lifecycle: Discontinued by manufacturer

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the verified Interrupting Capacity (AIC) of the 140U-H2C3-C60 breaker at 480 Volts AC?

A: The confirmed interrupting rating for this unit is 25 kiloAmps (kA) at 480 Volts AC.

Wiring & Installation:

Q: What mounting method and terminal type are used for the Bulletin 140U H-Frame breaker?

A: The breaker requires Panel Mount installation and utilizes a robust Bolt-On terminal connection type.

Troubleshooting & Compatibility:

Q: What are the protection functions included in the fixed thermal-magnetic trip unit of this breaker?

A: The trip unit provides LI protection, which consists of Long-Time (Thermal) and Instantaneous (Magnetic) protection.

Replacement & Upgrades:

Q: Is the 140U-H2C3-C60 model currently available, and what is the maximum rated current for its H-Frame series?

A: The product is Discontinued, and the 140U H-Frame maximum current rating is 125 Amperes.