OVERVIEW

Official designation: Allen-Bradley 140U-J6G3-D25 (Bulletin 140U, Molded Case Circuit Breaker)

Role/Application: This 3-pole J-frame MCCB features Electronic (LSG) long time, short time, and ground fault protection for industrial circuits, rated for 250 Amps.

KEY SPECS SUMMARY

Power: 600V AC rated voltage

Interfaces / Ports: Three power poles

Indicators: Refer to the latest manufacturer manual.

Operating Temp: Minus 25 to 60 degrees C

Platform / Compatibility: Bulletin 140U J-frame

Limit: 65 kA IC at 480V AC

Lifecycle: Discontinued

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What protection functions are included in the G trip unit designation?

A: The G protection type indicates an Electronic trip unit with LSG (Long time, Short time, Ground fault) functions.

Wiring & Installation:

Q: Are terminal lugs included with the Bulletin 140U J-frame MCCB upon shipment?

A: Terminal lugs and mounting hardware are typically included with the J-frame breaker upon delivery.

Troubleshooting & Compatibility:

Q: Can the protection curves be customized using the electronic trip unit?

A: Yes, the electronic trip unit allows for customizable settings for the long time, short time, and ground fault protection curves.

Replacement & Upgrades:

Q: What is the current status of the Bulletin 140U series and is a replacement recommended?

A: The 140U series is generally considered discontinued, and replacement with a newer series product is recommended.