A-B 140G-M6X3 Molded Case Circuit Breaker

Product Overview

The Allen-Bradley 140G-M6X3 is an 800 A, 3-pole M-frame molded case circuit breaker (MCCB) designed for industrial power distribution and circuit protection. Rockwell Automation specifies a 65 kA interrupting rating at 480 V AC.

Key Technical Specifications

Rockwell Automation lists the 140G-M6X3 as an active product and identifies it as an 800 A M-frame MCCB.

Advantages & Features

• 800 A high-current capacity for demanding industrial applications
• 3-pole configuration for three-phase power systems
• High 65 kA interrupting capacity at 480 V AC
• M-frame design for high-power circuit protection
• Supports thermal-magnetic/electronic protection configurations
• Rugged construction for industrial environments
• Compatible with a wide range of 140G accessories

Applications

• Industrial power distribution
• Main and feeder circuit protection
• Manufacturing plants
• Motor control centers
• Large industrial machinery
• Factory automation systems
• Commercial and industrial electrical panels
• High-current three-phase power systems

Important Notes

• 140G-M6X3 is a frame-only configuration, so verify the required trip/protection configuration and accessories before installation.
• Confirm system voltage, available fault current, pole configuration, and required interrupting rating before replacement.
• Installation and servicing should be performed by qualified electrical personnel.
• Do not exceed the breaker’s specified voltage, current, or interrupting ratings.
• Always verify the exact catalog number and accessories against the application requirements.