Square D FHL16040 Molded Case Circuit Breaker
- 40A
- 1 Pole
- Unit Mount
Quantity
Square D FHL16040 - 40A 1 Pole Molded Case Circuit Breaker
New
Quantity
Description
Belonging to the legacy F-Frame family, this 40-amp MCCB provides essential long-time and instantaneous (LI) protection for commercial systems. This unit-mount breaker installs into compatible Square D enclosures and switchboards. It is officially replaced by the PowerPact B-Frame BGL16040. Featuring a high interrupting capacity of 65kA at 240VAC, it safely clears severe faults. The HACR-rated design ensures versatile application.Specifications
| Brand | Square D |
|---|---|
| Part Number | FHL16040 |
| Series | FHL |
| Amperage | 40A |
| Poles | 1 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480Y/277VAC, 125VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480Y/277VAC, 10kA @ 125VDC |
| Frame Type | F |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Enclosures, Switchboards, Panelboards |
| 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, Alarm Switch, Undervoltage Release |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489, NEMA AB 1 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Non-Interchangeable Trip |
Product FAQs
7 answersWhat types of panels or enclosures are compatible with the FHL16040?
This unit-mount circuit breaker is designed for installation in standard Square D enclosures, switchboards, and panelboards that accept legacy F-Frame feed-thru breakers.
Is the Square D FHL16040 still manufactured, or is there a modern replacement?
The FHL series is a legacy F-Frame circuit breaker. For modern upgrades or replacements, Schneider Electric designates the PowerPact B-Frame series as the direct replacement for legacy F-Frame applications.
Can the FHL16040 be used in DC voltage applications?
Yes, this thermal-magnetic breaker is rated for use in DC systems up to 125VDC, where it provides a 10kA interrupting rating.
How does the FHL16040 mount into an electrical panel?
It is a unit-mount, feed-thru circuit breaker. This means it fastens directly to the mounting surface and requires wired connections at both the line and load side lugs, unlike plug-on breakers.
Can I install the FHL16040 in an I-Line panelboard?
No, this is a unit-mount breaker designed for feed-thru wiring. It does not have the plug-on jaw connections required for Square D I-Line panelboards.
Does this breaker support adjustable trip settings?
No, the FHL16040 features a fixed thermal-magnetic trip unit. The Long-Time and Instantaneous trip thresholds are factory set and cannot be adjusted in the field.
What does the LI trip function mean on this breaker?
The LI designation indicates that the thermal-magnetic trip unit provides Long-Time protection for thermal overloads and Instantaneous protection for magnetic short circuits.
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Reviews
Review summary
Customers rate this product 4.7 out of 5 based on 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.