Square D FHL360501212 Molded Case Circuit Breaker
- 50A
- 3 Pole
- Unit Mount
Square D
FHL360501212
Molded Case Circuit Breaker
Brand
Square D
SKU
FHL360501212
Quantity
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Square D FHL360501212 - 50A 3 Pole Molded Case Circuit Breaker
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Description
Built for industrial applications, the FHL360501212 is a 3-pole, 50A molded case circuit breaker by Square D. It delivers reliable LI protection for commercial systems. This F-Frame breaker mounts into standard Square D enclosures and switchboards. When upgrading to the newer HGL36050, ensure the replacement includes an auxiliary switch. This model features a factory-installed 1A/1B auxiliary switch for remote status monitoring. It provides a 65kAIC rating at 240VAC.Specifications
| Brand | Square D |
|---|---|
| Series | FHL |
| Amperage | 50A |
| 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, Motor Control Centers |
| Wire Gauge | 14-1/0 AWG (Cu), 12-1/0 AWG (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, Alarm Switch, Undervoltage Release |
|---|---|
| Accessories | Line and Load Lugs Included, Auxiliary Switch (Factory Installed) |
| Standards | UL 489, CSA C22.2 No. 5, NEMA AB 1, IEC 60947-2 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
Product FAQs
6 answersWhat does the 1212 suffix mean on the FHL360501212?
The 1212 suffix indicates that this breaker includes a factory-installed 1A/1B auxiliary switch, providing one Normally Open (NO) and one Normally Closed (NC) contact for remote status signaling.
What is the modern replacement for the legacy FHL360501212?
The FHL series is a legacy F-frame breaker. For modern applications, Square D transitions to the PowerPact H-frame series, such as the HGL36050. Note that upgrading to a PowerPact breaker may require different mounting hardware or enclosure modifications.
Is the FHL360501212 compatible with I-Line panelboards?
No, this is a unit-mount (feed-thru) circuit breaker designed to be bolted directly to a backpan. It does not have the plug-on jaw connections required for Square D I-Line panelboards.
Does the FHL360501212 provide ground fault protection?
No, this breaker is equipped with a standard thermal-magnetic trip unit that provides Long-Time and Instantaneous (LI) protection for overloads and short circuits. It does not include integral ground fault (LSIG) protection.
Can I adjust the trip curve on the FHL360501212?
The thermal and magnetic trip points on this legacy F-frame breaker are fixed at the factory. If your application requires adjustable trip settings or electronic coordination, you will need to upgrade to a newer PowerPact breaker with a Micrologic trip unit.
What is the difference between the Square D FAL and FHL series breakers?
The primary difference is their interrupting capacity. The standard FAL series is typically rated for 10kA at 480VAC, whereas the high-interrupting FHL series is rated for 25kA at 480VAC, making it suitable for systems with higher available fault currents.
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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.