Square D HGA36150U33X Molded Case Circuit Breaker
- 150A
- 3 Pole
- I-Line
Square D
HGA36150U33X
Molded Case Circuit Breaker
Brand
Square D
SKU
HGA36150U33X
Quantity
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Square D HGA36150U33X - 150A 3 Pole Molded Case Circuit Breaker
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Square D HGA36150U33X - 150A 3 Pole Molded Case Circuit Breaker
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| Brand | Square D |
|---|---|
| Part Number | HGA36150U33X |
| Series | HGA |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 208Y/120VAC, 65kA @ 240VAC, 35kA @ 480Y/277VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC, 18kA @ 600VAC |
| Amperage Range | 37.5-150A |
|---|
| Frame Type | HGA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards and Switchboards |
| Wire Gauge | 14 AWG - 3/0 AWG (Al/Cu) |
| Max Wire | 3/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LSI |
| Trip Function | Long-Time, Short-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs (AL150HD) |
| 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, True RMS Sensing |
Quantity
Square D HGA36150U33X - 150A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Series | HGA |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 208Y/120VAC, 65kA @ 240VAC, 35kA @ 480Y/277VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC, 18kA @ 600VAC |
| Amperage Range | 37.5-150A |
|---|
| Frame Type | HGA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards and Switchboards |
| Wire Gauge | 14 AWG - 3/0 AWG (Al/Cu) |
| Max Wire | 3/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LSI |
| Trip Function | Long-Time, Short-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs (AL150HD) |
| 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, True RMS Sensing |
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Description
Built for commercial and industrial applications, the Square D HGA36150U33X is a 150A, 3-pole molded case circuit breaker from the PowerPacT H-Frame family. Featuring an I-Line plug-on mounting style, it installs quickly into compatible Square D I-Line panelboards and switchboards. It accepts 14 to 3/0 AWG wire via load-side lugs. Rated 35 kAIC at 480VAC, it utilizes a Micrologic 3.2 S electronic trip unit with adjustable LSI settings. It also includes true RMS sensing and a Visi-Trip indicator.Specifications
| Brand | Square D |
|---|---|
| Series | HGA |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 208Y/120VAC, 65kA @ 240VAC, 35kA @ 480Y/277VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC, 18kA @ 600VAC |
| Amperage Range | 37.5-150A |
|---|
| Frame Type | HGA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards and Switchboards |
| Wire Gauge | 14 AWG - 3/0 AWG (Al/Cu) |
| Max Wire | 3/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LSI |
| Trip Function | Long-Time, Short-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs (AL150HD) |
| 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, True RMS Sensing |
Product FAQs
9 answersCan I install the HGA36150U33X in older I-Line panelboards?
Yes, Square D PowerPacT H-frame I-Line breakers are backward compatible with existing and older Square D I-Line panelboards and switchboard distribution sections, provided the voltage and AIC ratings meet your system requirements.
What does the U33X suffix indicate on this breaker?
The U33X suffix indicates the breaker is equipped with a Micrologic 3.2 S electronic trip unit. This solid-state trip unit provides adjustable LSI (Long-Time, Short-Time, and Instantaneous) protection settings for precise coordination in industrial power systems.
Does the HGA36150U33X require external mounting hardware for installation?
No, this breaker features an I-Line plug-on mounting style. It snaps directly into the bus of compatible Square D I-Line panelboards and switchboards, requiring no additional external mounting hardware.
What does the A in the HGA36150U33X part number signify for installation?
The A indicates the breaker's termination type. It signifies that the breaker is configured with an I-Line plug-on connection on the line side and mechanical lugs on the load side.
Can this breaker be used on a 500 VDC system?
No. While some PowerPacT H-frame breakers support DC ratings, the HGA36150U33X features an electronic trip unit (Micrologic 3.2 S). DC ratings are only available on PowerPacT H-frame breakers equipped with thermal-magnetic trip units.
Does the HGA36150U33X provide a visual indication if it trips?
Yes, PowerPacT H-frame breakers feature a center tripped position on the operating handle, providing clear visual confirmation when the breaker has opened due to a fault. They also include a push-to-trip button to manually test the tripping mechanism.
Can the trip unit on the HGA36150U33X be swapped out in the field?
No, this specific model comes with a factory-sealed, non-interchangeable trip unit. The Micrologic 3.2 S trip unit cannot be replaced or upgraded in the field.
What is the difference between the HGA36150U33X and the HGA36150U43X?
Both are 150A, 3-pole, PowerPacT H-frame I-Line breakers with LSI protection. The difference is the trip unit. The HGA36150U33X features a standard Micrologic 3.2 S trip unit, while the HGA36150U43X features a Micrologic 5.2 A trip unit which adds an integrated digital ammeter for current monitoring.
Can I use the HGA36150U33X to replace an older KA36150 breaker?
Yes, the PowerPacT H-frame HGA36150U33X is a modern replacement for the legacy Square D KA36150 I-Line circuit breaker. It fits into the same I-Line panelboard space but offers an upgraded solid-state electronic trip unit instead of the older thermal-magnetic protection.
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