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Square D FH16050C Molded Case Circuit Breaker
- 50A
- 1 Pole
- I-Line
Square D
FH16050C
Molded Case Circuit Breaker
Brand
Square D
SKU
FH16050C
Quantity
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Square D FH16050C - 50A 1 Pole Molded Case Circuit Breaker
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Description
Built to handle rigorous commercial electrical loads, this 50-amp single-pole MCCB features a dedicated Phase C connection for Square D I-Line enclosures. The high-interrupting FH series outperforms standard FA frames, offering 25kAIC at 277VAC to safeguard critical branch circuits. Its specialized mounting jaw ensures a secure mechanical and electrical bond to the panel bus. For modern replacements, engineers typically specify the PowerPact BGA140503 as the current generation equivalent.Specifications
| Brand | Square D |
|---|---|
| Part Number | FH16050C |
| Series | FH |
| Amperage | 50A |
| Poles | 1 |
| Mounting Style | I-Line |
| Voltage | 120VAC, 240VAC, 277VAC, 125VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 120VAC, 25kA @ 240VAC, 25kA @ 277VAC, 10kA @ 125VDC |
| Frame Type | FH |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, I-Line Switchboards |
| Wire Gauge | 14-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 14 AWG |
| 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, Alarm Switch, Undervoltage Release, Padlock Attachment |
|---|---|
| Accessories | Phase Connection C |
| Standards | CSA C22.2 No. 5, HACR, NEMA AB 1, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity |
Product FAQs
8 answersWhat panelboards are compatible with the FH16050C circuit breaker?
This breaker is designed exclusively for Square D I-Line panelboards and switchboards. It utilizes a plug-on mounting system that connects directly to the panel bus stack.
How does the I-Line mounting system work for this breaker?
The breaker features a specialized mounting jaw that ratchets firmly onto the I-Line bus stack. This plug-on design eliminates the need for separate cable connections to the bus, saving installation time and ensuring a secure mechanical and electrical bond.
What does the Phase C designation mean for this 1-pole breaker?
The C in the FH16050C catalog number indicates it is factory-configured to connect specifically to the C phase of the I-Line bus. You must ensure your panel layout requires a C-phase connection for this specific slot.
Can the FH16050C be used in direct current (DC) applications?
Yes, this breaker is rated for up to 125VDC with a 10kA interrupting capacity, making it suitable for specific industrial control circuits or battery systems.
What type of protection does the LI trip function provide?
The LI designation stands for Long-Time and Instantaneous trip functions. The thermal Long-Time element protects against sustained overloads, while the magnetic Instantaneous element trips immediately to clear short circuits. Both settings are fixed on this thermal-magnetic model.
Is the FH frame still the current production model for this application?
The FH series is a legacy F-Frame breaker. While still widely used for maintaining existing panels, engineers typically specify the PowerPact B-Frame, such as the BGA140503, as the current generation equivalent for new installations.
What wire sizes are accepted by the lugs on this 50A breaker?
The factory-installed lugs accept 14 AWG to 1/0 AWG copper or aluminum conductors. Always verify that the wire size matches the 50A circuit requirements and follow proper torque specifications during installation.
How does the FH series compare to standard FA frame breakers?
The FH series is the high-interrupting version of the F-Frame family. While standard FA breakers offer lower interrupting ratings, the FH16050C provides an upgraded 25kAIC at 240VAC and 277VAC to better safeguard critical branch circuits.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 10 reviews.
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Rating
10 reviews
- DMDonald M.Verified BuyerReviewingSquare D FH36030 - 30A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/18/26Excellent Service
The support team with Super Breakers went over and beyond in ensuring the breakers were on site for an emergency repair…
CAVA Construction Manager very pleased!
Donald Mayo
Mayo Electric
- PHpayton h.Verified BuyerReviewingSquare D FH36090 - 90A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/17/26great
great straightforward company has almost everything you could ever need in stock
- SGShawn G.Verified BuyerReviewingSquare D FH36020 - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars1/20/26Thanks !
Excellent service & gear per usual !
Thanks !
- EEarnestVerified BuyerReviewingSquare D FH36060 - 60A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars10/3/25Fast delivery and quality
The breaker was in great condition.
- JPJason P.Verified BuyerReviewingSquare D FH36050 - 50A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/5/25Breakers
Order was placed and they came in on time in good condition