Square D FCP34080MT Molded Case Circuit Breaker – 3 Pole – 80A – Bolt-On – F-Frame – Thermal Magnetic

The Square D FCP34080MT is a heavy-duty F-Frame molded case circuit breaker designed for commercial, industrial, and motor control applications requiring high interrupting capacity and dependable overcurrent protection. Manufactured by Schneider Electric, this 3-pole, 80A breaker delivers reliable thermal-magnetic protection for branch and feeder circuits in demanding electrical distribution systems.

Designed for bolt-on installation, the FCP34080MT integrates seamlessly into Square D panelboards, switchboards, and motor control centers. Its robust construction and high interrupting ratings make it suitable for systems with elevated available fault current, ensuring safe operation under severe fault conditions.

This breaker is part of the legacy F-Frame family and is commonly referenced in replacement upgrades, where it may be superseded by newer equivalent models depending on application requirements. It includes standard protective features such as long-time and instantaneous trip functions and supports optional accessories for enhanced control and signaling.

Specifications

• Brand: Square D
• Manufacturer: Schneider Electric
• Part Number: FCP34080MT
• Series: FCP Series
• Frame Type: F-Frame
• Configuration: 3 Pole
• Phase: 3 Phase
• Current Rating: 80A
• Voltage Rating: 240VAC, 480VAC
• Mounting Style: Bolt-On
• Terminal Type: Lugs
• Application: Panelboards, Switchboards, Motor Control Centers
• Protection Type: Thermal Magnetic
• Trip Function: LI – Long-Time and Instantaneous
• Trip Adjustability: Fixed Thermal, Fixed Magnetic

Interrupting Ratings

• 100kA @ 240VAC
• 65kA @ 480VAC

Electrical Characteristics

• Line Rated Current: 80A
• Maximum Wire: 1/0 AWG
• Minimum Wire: AWG 14
• Wire Range: 14–1/0 AWG (Copper/Aluminum)

Construction Features

• Heavy-duty F-Frame molded case design
• Bolt-on mounting configuration
• High interrupting capacity for industrial applications
• Long-time and instantaneous protection functions
• Non-interchangeable trip design
• HACR rated for HVAC applications
• Compatible with Square D panelboards and MCCs
• Plug-on shroud compatibility
• Line and load side lug provisions included

Available Options

• Shunt Trip
• Auxiliary Switch
• Undervoltage Release
• Alarm Switch

Standards & Approvals

• UL 489 Listed
• CSA C22.2 No. 5
• NEMA AB-1 Compliant
• CSA Approved
• UL Approved
• W-C-375B/GEN Compliant
• Manufactured to Square D / Schneider Electric standards for industrial power distribution applications

Operating Conditions

• Ambient Temperature Rating: 40°C
• Designed for heavy-duty industrial and commercial power distribution systems
• Suitable for motor control, switchboard, and feeder protection applications