Engineered for industrial control panels, the Allen Bradley 140U-I6C3-C15-M delivers reliable 15A overcurrent protection. This 3-pole molded case circuit breaker is built for demanding commercial and industrial environments. The unit mount I-Frame design includes factory-installed load side lugs. As a legacy component, it replaces existing 140U installations, while the 140G-H6C3-C15 is required for new retrofits. Rated 65kAIC at 480VAC, it features fixed thermal magnetic trip technology.
Load Side Lugs Included, Auxiliary Switch (Factory Installed)
Standards
CSA C22.2 No. 5, IEC 60947-2, UL 489
Approval
CE, CSA, UL
Temp Rating
40C
Construction Features
HACR Rated, Non-Interchangeable Trip
Product FAQs
5 answers
What types of enclosures or panels is the 140U-I6C3-C15-M compatible with?
This 3-pole breaker is designed for integration into industrial control panels and motor control centers. It is a unit-mount device that bolts directly to the chassis or backplate.
What wire sizes are compatible with the terminals on the 140U-I6C3-C15-M?
The factory-installed lugs accept wire gauges from 14 AWG up to 4 AWG. Ensure you torque the terminals to the manufacturer specifications when terminating the conductors.
Does the 140U-I6C3-C15-M allow for field-adjustable trip settings?
No, this thermal-magnetic breaker features fixed thermal and fixed magnetic trip elements. Both the long-time and instantaneous (LI) trip functions are factory-set and cannot be adjusted.
Can the 140U-I6C3-C15-M be applied in DC control circuits?
Yes, in addition to its AC ratings, this breaker is rated for up to 250VDC with a 22kA interrupting capacity. This makes it suitable for various industrial DC applications.
What are the primary safety requirements when installing the 140U-I6C3-C15-M?
Always disconnect and lock out all power sources feeding the motor control center or panel before installation. Verify the circuit is fully de-energized with a calibrated multimeter to prevent arc flash or shock hazards.
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