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Square D FY14050C Molded Case Circuit Breaker
- 50A
- 1 Pole
- I-Line
Square D
FY14050C
Molded Case Circuit Breaker
Brand
Square D
SKU
FY14050C
Quantity
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Square D FY14050C - 50A 1 Pole Molded Case Circuit Breaker
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Description
Built for heavy-duty power distribution, this 50A Square D FY14050C circuit breaker provides essential long-time and instantaneous trip functions. It is a legacy F-frame component designed to maintain existing commercial and industrial electrical infrastructures. The breaker mounts into standard I-Line panelboards, offering a secure plug-on connection. Featuring a phase C connection and a 14 kAIC interrupt rating at 277VAC, it is fully HACR rated and includes a visual trip indicator.Specifications
| Brand | Square D |
|---|---|
| Part Number | FY14050C-R |
| Series | FY |
| Amperage | 50A |
| Poles | 1 |
| Mounting Style | I-Line |
| Voltage | 120VAC, 240VAC, 277VAC, 125VDC |
| Phase | 1 |
| AIC Rating | 14kA @ 120VAC, 14kA @ 240VAC, 14kA @ 277VAC, 10kA @ 125VDC |
| Frame Type | F |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards |
| Wire Gauge | 14-4 AWG (Cu), 12-4 AWG (Al) |
| Max Wire | 4 AWG |
| Min Wire | 14 AWG (Cu), 12 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Phase C Connection (Factory Configured) |
| Standards | CSA C22.2 No. 5, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Phase C Connection |
Product FAQs
7 answersWhat does the C suffix in the FY14050C catalog number indicate?
The C suffix designates that this 1-pole breaker is factory configured to connect specifically to the C phase of the I-Line panelboard bus. For A or B phase connections, a different catalog number suffix is required.
Which panelboards are compatible with the FY14050C circuit breaker?
This breaker is designed exclusively for Square D I-Line panelboards and switchboards. It utilizes the proprietary I-Line plug-on mounting system and will not fit in standard QO load centers or NQ/NF series panelboards.
Can the FY14050C be used in direct current (DC) applications?
Yes, this breaker is rated for use in DC systems up to 125V DC, where it provides an interrupting capacity of 10 kAIC.
What type of trip unit is installed in the FY14050C?
It features a fixed thermal magnetic trip unit with Long-Time (L) and Instantaneous (I) functions. The thermal element provides overload protection, while the magnetic element responds to short-circuit faults.
Is the Square D FY frame still in active production?
The FY series is a legacy F-frame molded case circuit breaker. It is typically sourced to maintain and service existing commercial or industrial I-Line infrastructures without requiring a complete panel upgrade.
Does this breaker require a separate mounting kit for I-Line installation?
No, the FY14050C features an integrated I-Line plug-on jaw that connects directly to the panelboard bus. It secures to the panel using the standard retaining system built into the I-Line panelboard, requiring no additional mounting hardware.
Is the FY14050C suitable for heating, air conditioning, and refrigeration equipment?
Yes, this breaker is HACR rated, making it suitable for protecting group motor applications commonly found in commercial HVAC systems.
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Reviews
Review summary
Customers rate this product 4.8 out of 5 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
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Rating
6 reviews
- KWKenneth W.Verified BuyerReviewingSquare D FY14020C - 20A 1 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars11/15/25I line breakers
20/2 I line
And the
20/1 I line replacement for damaged breaker
Worked fine
- PEPaul E.ReviewingSquare D FY14020B - 20A 1 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/7/23Great service and pricing
Great service and pricing
- SMSam M.ReviewingSquare D FY14015B - 15A 1 Pole Molded Case Circuit BreakerI recommend this productRated 4 out of 5 stars6/20/19Sam Mufti
Sale person was professional . Got breakers on time.
- RCRic C.ReviewingSquare D FY14020B - 20A 1 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/2/19Very pleased with price &
Very pleased with price & delivery.
- RSRobin S.ReviewingSquare D FY14020A - 20A 1 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars2/16/19Great deal
Good pricing and great customer service