Square D FA34045 45A 3 Pole Molded Case Circuit Breaker – I-Line Mount – 480VAC

The FA34045 by Square D is a molded case circuit breaker designed for dependable electrical protection in industrial and commercial power distribution systems. Built on an FA I-Line frame style with a thermal magnetic non-interchangeable trip unit, this breaker provides stable protection against overload and short-circuit conditions. Its plug-in I-Line mounting system allows for fast installation and easy replacement, while the rugged molded case construction ensures long-term durability in demanding environments. With a 45-amp rating and 3-pole configuration, it is suitable for three-phase electrical applications requiring reliable circuit protection.

Product Specifications

• Brand: Square D
• Model: FA34045
• Product Type: Molded Case Circuit Breaker
• Frame Style: FA (I-Line)
• Frame Type: F
• Trip Unit Type: Thermal Magnetic Non-Interchangeable
• Mounting Type: Plug-In / I-Line
• Amperage Rating: 45 Amp
• Number of Poles: 3 Pole
• Frequency: 50/60 Hz
• Terminal Type: Load End Standard
• Voltage Maximum: 480VAC
• Warranty: 1 Year
• Manufacturer: Square D

Technical Specifications

• Thermal magnetic trip mechanism for overload and short-circuit protection
• Non-interchangeable trip unit with factory-calibrated settings
• Heavy-duty molded case construction for industrial reliability
• Plug-in I-Line mounting system for efficient installation and servicing
• Designed for three-phase electrical distribution systems
• Standard load-end lug terminals for secure wiring connections
• Rated for operation at 40°C ambient temperature

Voltage and Ratings

• Maximum Voltage: 480VAC
• DC Voltage Rating: 250VDC
• Interrupting Capacity Ratings:
  • 25kA @ 240 VAC
  • 18kA @ 480 VAC
  • 10kA @ 250 VDC
• Current Rating: 45 Ampere
• Pole Configuration: 3 Pole

Product Data

• Manufacturer: Square D
• Model Number: FA34045
• Connection Type: Plug In
• Frame Style: FA (I-Line)
• Frame Type: F
• Lug Type: Load End Standard
• Interrupting Rating: 25kA / 18kA / 10kA
• Application: Industrial and commercial electrical distribution
• Warranty Coverage: One Year In-House Warranty
• Warranty Includes: Repairs, parts, labor, and standard shipping required for recertification

Important Note

The product image shown represents a base model and is for identification purposes only. Accessories purchased with the breaker can be installed at no additional cost when configuration details are provided during checkout. The one-year in-house warranty covers repairs, parts, labor, and standard shipping required for recertification, excluding damage caused by misuse, improper handling, or normal wear and tear.

Returns are easy

You may return items within 30 days of delivery for a refund.

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