Square D HGA36050SA Molded Case Circuit Breaker
- 50A
- 3 Pole
- I-Line
Quantity
Square D HGA36050SA - 50A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Rated for 35kAIC at 480VAC, this 50A three-pole breaker incorporates a 120V AC shunt trip for automated or remote circuit interruption. It integrates seamlessly into Square D I-Line panelboards and switchboards, providing a modern replacement for legacy FA360501021 components. The thermal-magnetic trip unit includes adjustable magnetic settings, ensuring precise coordination and robust current-limiting protection for demanding industrial applications.Specifications
| Brand | Square D |
|---|---|
| Part Number | HGA36050SA-R |
| Series | HGA |
| Amperage | 50A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480Y/277VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC, 18kA @ 600VAC, 20kA @ 250VDC, 20kA @ 500VDC |
| Frame Type | H |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Switchboards |
| Wire Gauge | 14 AWG-3/0 AWG (Al/Cu) |
| Max Wire | 3/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Auxiliary Switch, Alarm Switch, Undervoltage Release |
|---|---|
| Accessories | Shunt Trip 120V AC |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting, Visual Trip Indicator |
Product FAQs
6 answersCan the HGA36050SA be used to replace older F-Frame breakers?
Yes, the PowerPacT H-Frame HGA36050 series serves as a direct upgrade and replacement for legacy Square D FA36050 and FH36050 circuit breakers. Note that this specific "SA" model includes a factory-installed 120VAC shunt trip.
What does the "SA" suffix indicate on the HGA36050SA catalog number?
The "SA" suffix means this circuit breaker is equipped with a factory-installed 120VAC shunt trip. This allows the breaker to be tripped remotely by applying a 120V signal, which is commonly used for emergency stops or automated safety shutdowns.
How is the HGA36050SA wired and mounted?
The line side features an I-Line plug-on connection that mounts directly onto the bus of compatible Square D panelboards and switchboards. The load side is equipped with mechanical lugs that accept 14 AWG to 3/0 AWG aluminum or copper conductors.
Is the HGA36050SA rated for 80% or 100% continuous current?
This breaker is standard-rated, meaning it is designed to carry 80% of its 50A nominal rating for continuous loads. For 100% rated applications, a different catalog number would be required.
How can I manually test the tripping mechanism on the HGA36050SA?
You can manually test the mechanical operation of the breaker by pressing the integral push-to-trip button located on the front cover. This is useful for verifying the mechanism during routine panel maintenance.
What type of protection does the LI trip unit provide?
The thermal-magnetic trip unit features Long-Time (L) protection to prevent damage from sustained overloads, and Instantaneous (I) protection to quickly clear severe short circuits. The thermal trip is fixed, while the magnetic trip is adjustable.
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