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Square D FH16015B Molded Case Circuit Breaker
- 15A
- 1 Pole
- I-Line
Square D
FH16015B
Molded Case Circuit Breaker
Brand
Square D
SKU
FH16015B
Quantity
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Square D FH16015B - 15A 1 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D FH16015B - 15A 1 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Series | FH |
| Amperage | 15A |
| Poles | 1 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 277VAC, 125VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 277VAC, 10kA @ 125VDC |
| Frame Type | FH |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, I-Line Switchboards |
| Wire Gauge | 14-4 AWG (Cu), 12-4 AWG (Al) |
| Max Wire | 4 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 |
|---|---|
| Accessories | Phase Connection B (Factory Configured) |
| 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 |
Quantity
Square D FH16015B - 15A 1 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Series | FH |
| Amperage | 15A |
| Poles | 1 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 277VAC, 125VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 277VAC, 10kA @ 125VDC |
| Frame Type | FH |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, I-Line Switchboards |
| Wire Gauge | 14-4 AWG (Cu), 12-4 AWG (Al) |
| Max Wire | 4 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 |
|---|---|
| Accessories | Phase Connection B (Factory Configured) |
| 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 |
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Description
Designed to integrate seamlessly into commercial power systems, the Square D FH16015B is a 1-pole, 15A molded case circuit breaker. This legacy F-Frame unit utilizes thermal-magnetic technology to protect against overloads and short circuits. The breaker mounts into Square D I-Line panelboards and switchboards, utilizing a factory-configured Phase B plug-on connection. Facilities upgrading their infrastructure can replace this model with the PowerPact BGA140152.Specifications
| Brand | Square D |
|---|---|
| Series | FH |
| Amperage | 15A |
| Poles | 1 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 277VAC, 125VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 277VAC, 10kA @ 125VDC |
| Frame Type | FH |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, I-Line Switchboards |
| Wire Gauge | 14-4 AWG (Cu), 12-4 AWG (Al) |
| Max Wire | 4 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 |
|---|---|
| Accessories | Phase Connection B (Factory Configured) |
| 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
9 answersIs the Square D FH16015B still in active production, or is there a direct replacement?
The FH16015B is a legacy F-Frame circuit breaker. Facilities upgrading their infrastructure can replace this model with the newer PowerPact B-Frame series, specifically catalog number BGA140152, which offers modern thermal magnetic protection for I-Line panelboards.
What does the "B" suffix in the FH16015B catalog number indicate?
The "B" suffix designates a factory-configured Phase B plug-on connection. This ensures the 1-pole breaker connects specifically to the B phase bus bar when installed in a Square D I-Line panelboard or switchboard.
How does the I-Line mounting system work for this 1-pole breaker?
The I-Line design features a plug-on phase connection that grips the panelboard bus bar directly, eliminating the need for mounting hardware on the line side. The load side utilizes a standard mechanical lug for wire termination.
How is the FH16015B secured to the panelboard to prevent accidental removal?
In addition to the plug-on jaw that grips the bus bar, the breaker features a mounting foot at the base. A retaining screw passes through this foot into the panelboard backpan to lock the breaker securely in place.
What replacement lug kit is compatible with the FH16015B?
The standard mechanical lug kit for 15A to 30A Square D F-Frame circuit breakers is catalog number AL30FD. This kit accepts 14 to 4 AWG copper or 12 to 4 AWG aluminum conductors.
Will the FH16015B fit in a standard QO or Homeline load center?
No, the FH16015B is an I-Line molded case circuit breaker designed exclusively for commercial and industrial Square D I-Line panelboards and switchboards. It is not compatible with residential QO or Homeline load centers.
What type of trip unit is installed in the FH16015B?
It features a fixed thermal magnetic trip unit with Long-Time (L) and Instantaneous (I) functions. The thermal element protects against sustained overloads, while the magnetic element responds immediately to short circuits.
Can the FH16015B be used in direct current (DC) applications?
Yes, this breaker is rated for use in DC systems up to 125VDC, where it provides an interrupting capacity of 10kA.
How does the interrupting rating of the FH16015B change based on the system voltage?
The breaker provides a 65kA interrupting rating at 240VAC, which drops to 25kA when used in 277VAC applications. For 125VDC systems, the rating is 10kA.
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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