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Square D FY14015C Molded Case Circuit Breaker

  • 15A
  • 1 Pole
  • I-Line
Square D FY14015C
Molded Case Circuit Breaker
Brand Square D
SKU FY14015C
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  • 15A
  • 1 Pole
  • I-Line

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Square D FY14015C 1 Pole Circuit Breaker

Square D FY14015C - 15A 1 Pole Molded Case Circuit Breaker

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$150.48 In Stock

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Description

Serving as a reliable branch protector, the Square D FY14015C is a 1-pole, 15A molded case circuit breaker. It offers essential LI protection for 277VAC electrical circuits. Featuring a plug-on I-Line mounting style and a phase C connection, it integrates into Square D panelboards. This discontinued F-Frame component is replaced by the BDA140155. Rated for 18 kAIC, it handles moderate fault currents safely. A built-in Visi-Trip indicator ensures rapid identification of tripped status.

Specifications

Key specifications
Brand Square D
Part Number FY14015C
Series FY
Amperage 15A
Poles 1
Mounting Style I-Line
Voltage 277VAC, 125VDC
Phase 1
AIC Rating 18kA @ 277VAC, 10kA @ 125VDC
Fit and installation
Frame Type FY
Terminal Type Lugs
For Use With Square D I-Line Panelboards and Switchboards
Wire Gauge 14-4 AWG (Cu), 12-4 AWG (Al)
Max Wire 4 AWG
Min Wire 14 AWG (Cu), 12 AWG (Al)
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment
Accessories Load Side Lugs Included
Standards CSA C22.2 No. 5, NEMA AB 1, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated, SWD Rated, Phase C Connection, Visual Trip Indicator

Product FAQs

6 answers
What panelboards accept the FY14015C circuit breaker?

This F-Frame breaker is designed exclusively for Square D I-Line panelboards and switchboards. It features a factory-configured Phase C connection and will not fit in standard QO, NQ, or NF load centers.

What is the modern replacement for the discontinued FY14015C?

The FY14015C is a legacy F-Frame breaker that has been superseded by the Square D PowerPact B-Frame series. The direct modern replacement for this 15A, Phase C I-Line breaker is catalog number BDA140155.

How does the I-Line connection on the FY14015C work?

The I-Line plug-in design allows the breaker to engage directly with the panelboard bus stack without requiring bolt-on hardware. The breaker snaps securely into place, which speeds up installation and simplifies phase balancing.

What type of protection does the FY14015C provide?

It utilizes a fixed thermal-magnetic trip unit to deliver standard LI (Long-Time and Instantaneous) protection. The thermal element responds to sustained overloads, while the magnetic element trips instantaneously during short circuits.

How can I tell if the FY14015C has tripped?

This breaker includes a built-in Visi-Trip indicator. When a fault occurs, the handle moves to a center position and a red indicator becomes visible, allowing electricians to quickly identify the tripped circuit inside a crowded panel.

Is the FY14015C suitable for switching fluorescent lighting or HVAC equipment?

Yes, this breaker is both SWD (Switching Duty) and HACR (Heating, Air Conditioning, and Refrigeration) rated. This means it can be safely used to manually switch 277V fluorescent lighting circuits and is approved for use with compatible HVAC motor loads.

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Reviews

4.8
Rated 4.8 out of 5 stars
Based on 6 reviews
Total 5 star reviews: 5 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Rating
Ratings
6 reviews
  • KW
    Kenneth W.
    Verified Buyer
    Reviewing
    Square D FY14020C - 20A 1 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    11/15/25
    I line breakers

    20/2 I line

    And the

    20/1 I line replacement for damaged breaker

    Worked fine

  • PE
    Paul E.
    Flag of United States
    Reviewing
    Square D FY14020B - 20A 1 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    6/7/23
    Great service and pricing

    Great service and pricing

  • SM
    Sam M.
    Flag of United States
    Reviewing
    Square D FY14015B - 15A 1 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 4 out of 5 stars
    6/20/19
    Sam Mufti

    Sale person was professional . Got breakers on time.

  • RC
    Ric C.
    Flag of United States
    Reviewing
    Square D FY14020B - 20A 1 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    4/2/19
    Very pleased with price &

    Very pleased with price & delivery.

  • RS
    Robin S.
    Flag of United States
    Reviewing
    Square D FY14020A - 20A 1 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    2/16/19
    Great deal

    Good pricing and great customer service