OVERVIEW

Official designation: Allen-Bradley 140UE-H7E3-D12 (Bulletin 140UE, Molded Case Circuit Breaker)

Role/Application: H-Frame, 3-pole IEC-rated MCCB with a 125 A continuous current rating, providing both fixed magnetic and adjustable thermal protection for robust industrial circuit defense.

KEY SPECS SUMMARY

Power: 415 Volts AC (IEC)

Interfaces / Ports: Load and line terminals

Indicators: Trip status flag

Operating Temp: Up to 75 degrees C

Platform / Compatibility: H-Frame; IEC, UL 489, CSA

Limit: Thermal trip adjustable 0.8 to 1.0 x In

Lifecycle: Current Product

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the rated short-circuit breaking capacity (Icu) for this H-Frame breaker at 415 Volts AC?

A: The rated ultimate short-circuit breaking capacity (Icu) is 70 kA at 415 Volts AC.

Wiring & Installation:

Q: What is the recommended mounting orientation for the 140UE-H7E3-D12 to ensure proper heat dissipation?

A: Refer to the latest manufacturer manual for specific mounting requirements and recommended clearances for cooling.

Troubleshooting & Compatibility:

Q: What is the fixed magnetic trip setting factor for this 125 A unit relative to the rated current (In)?

A: The magnetic trip is fixed at a factor of 10 times the rated current (10 x In).

Replacement & Upgrades:

Q: Does the 140UE-H7E3-D12 offer options for auxiliary contacts or shunt trips for external signaling?

A: Yes, the 140UE series supports the addition of auxiliary contacts (AX) or shunt trips (SNT) using suffix codes.