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Square D FHL36040 Molded Case Circuit Breaker
- 40A
- 3 Pole
- Unit Mount
Square D
FHL36040
Molded Case Circuit Breaker
Brand
Square D
SKU
FHL36040
Quantity
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Square D FHL36040 - 40A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D FHL36040 - 40A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | FHL36040 |
| Series | FHL |
| Amperage | 40A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | FHL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Enclosures, Switchboards, Control Panels |
| 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 |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Line and Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, NEMA AB 1, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity |
Quantity
Square D FHL36040 - 40A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | FHL36040-R |
| Series | FHL |
| Amperage | 40A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | FHL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Enclosures, Switchboards, Control Panels |
| 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 |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Line and Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, NEMA AB 1, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity |
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Description
Built for demanding commercial and industrial environments, the FHL36040 is a 3-pole molded case circuit breaker from Square D's proven F-Frame family. It features a unit-mount design with line and load side lugs, allowing for straightforward integration into switchboards and control panels. Delivering 40A of continuous current, it utilizes reliable thermal-magnetic trip technology for long-time and instantaneous (LI) protection. This legacy unit is officially replaced by the HGL36040.Specifications
| Brand | Square D |
|---|---|
| Part Number | FHL36040 |
| Series | FHL |
| Amperage | 40A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | FHL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Enclosures, Switchboards, Control Panels |
| 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 |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Line and Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, NEMA AB 1, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity |
Product FAQs
7 answersWhat enclosures and panels are compatible with the FHL36040?
This unit mount circuit breaker is designed for installation in standard Square D enclosures, switchboards, and industrial control panels.
What wire sizes and materials are accepted by the lugs on this breaker?
The feed-thru lugs on this breaker accept wire gauges from 14 AWG up to 1/0 AWG. The terminals are rated for use with both copper (Cu) and aluminum (Al) conductors.
What does the LI trip function code mean on this breaker?
The LI designation indicates that the thermal magnetic trip unit provides Long-Time (L) and Instantaneous (I) protection. The Long-Time function protects against sustained overloads, while the Instantaneous function provides immediate tripping during short circuits.
Is the Square D FHL36040 still in active production?
The FHL36040 is part of the legacy F-Frame series, which has been superseded by the modern Square D PowerPact B-Frame and H-Frame molded case circuit breakers. PowerPact B-Frame breakers are the direct designated replacements for legacy F-Frame applications.
How is the FHL36040 mounted?
This is a unit mount circuit breaker, meaning it is designed to be individually mounted using fasteners and wired via feed-thru lugs. It is not compatible with I-Line plug-on busway systems.
Can this breaker be used in DC voltage applications?
Yes, in addition to its standard AC ratings, this breaker is rated for use in DC circuits up to 250VDC with an interrupting capacity of 10kA.
Are the trip settings on the FHL36040 adjustable?
No, this breaker features a fixed thermal magnetic trip unit. The long-time and instantaneous trip thresholds are factory set and cannot be adjusted in the field.
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Reviews
Review summary
Customers rate this product 4.7 out of 5 based on 3 reviews.
Total 5 star reviews: 2 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
3 reviews
- CBChris B.Verified BuyerReviewingSquare D FHL36000M1586 - 100A 3 Pole Automatic Molded Case SwitchI recommend this productRated 5 out of 5 stars7/24/26Re-certified Breaker for Trane RTU's
We received the breaker quickly and it was the exact match for the equipment we needed. The breaker looks like new, solved out problem quickly.
- JFJeremy F.ReviewingSquare D FHL26090 - 90A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars3/2/22Great Product
Great pricing. Easy ordering.
- MGMichael G.ReviewingSquare D FHL36060 - 60A 3 Pole Molded Case Circuit BreakerI recommend this productRated 4 out of 5 stars5/21/18Great prices !!
Great prices and normally fast shipping times. Did have a little confusion with shipping updates.