Square D HGL36050SA Molded Case Circuit Breaker
- 50A
- 3 Pole
- Unit Mount
Quantity
Square D HGL36050SA - 50A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Built to protect circuits against overloads and short circuits, the Square D HGL36050SA is a 50A, 3-pole molded case circuit breaker. Voltage ratings are 240VAC, 480VAC, 600VAC, 250VDC and 500VDC. The PowerPacT HGL series H Frames breaker uses unit mounting and lug terminals. Fixed thermal and magnetic trips provide long-time and instantaneous protection. Approvals include CE, CSA, IEC, NOM and UL.Specifications
| Brand | Square D |
|---|---|
| Part Number | HGL36050SA |
| Series | HGL |
| Amperage | 50A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600VAC, 20kA @ 250VDC, 20kA @ 500VDC |
| Frame Type | HGL |
|---|---|
| Terminal Type | Lugs |
| For Use With | PowerPacT H-Frame Enclosures, Switchboards, Industrial Control Panels |
| Wire Gauge | 14-3/0 AWG (Cu/Al) |
| 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, Fixed Magnetic |
| Available Options | Alarm Switch, Auxiliary Switch, Motor Operator, Rotary Handle, Undervoltage Release |
|---|---|
| Accessories | Lugs |
| 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 |
Product FAQs
9 answersWhat circuit rating should I consider the Square D HGL36050SA for?
This is a 50A, 3-pole molded case circuit breaker for 3-phase applications. Use its current rating and pole count when selecting circuit protection, together with the circuit's voltage, load requirements and conductor ampacity.
How much available fault current can this breaker interrupt on an AC circuit?
The interrupting ratings are 65kA at 240VAC, 35kA at 480VAC and 18kA at 600VAC. Select using the rating corresponding to the circuit voltage, and ensure the available fault current at the installation point does not exceed that rating.
What ratings apply when selecting this breaker for a DC circuit?
The DC voltage ratings are 250VDC and 500VDC, with a 20kA interrupting rating at each voltage. Compare both the circuit voltage and available fault current against the corresponding DC ratings rather than using the AC ratings.
Can I adjust the overload or instantaneous trip settings?
No. The thermal and magnetic trip settings are fixed. Thermal-magnetic protection provides delayed tripping for sustained overloads and instantaneous tripping for high fault currents, so choose this breaker when fixed trip characteristics suit the circuit.
What mounting style and dimensions should I use for layout planning?
This breaker uses unit mounting and measures 4.09 in wide, 6.40 in high and 3.40 in deep. Use these dimensions to plan its physical footprint and the unit-mount arrangement in your installation layout.
What temperature range should I consider for the installation environment?
The temperature rating is -25C to 70C. Compare the expected temperature at the breaker location with this range when evaluating the installation environment.
What does the HACR rating mean for equipment selection?
HACR refers to heating, air conditioning and refrigeration applications. This breaker's HACR rating is relevant when selecting protection for equipment that requires a HACR-rated circuit breaker.
What does the current-limiting feature do during a fault?
Current-limiting action reduces the peak current and energy passed through during interruption of high fault currents. Consider this feature when evaluating fault protection, while still selecting an interrupting rating adequate for the available fault current.
What conductor range should I use when planning lug terminations?
The lug terminal conductor range is 14 AWG through 3/0 AWG for copper or aluminum. Use this range when planning terminations, and select conductor size according to the circuit's ampacity requirements.
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