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Square D PGA36120U33C Molded Case Circuit Breaker
- 1200A
- 3 Pole
- I-Line
Square D
PGA36120U33C
Molded Case Circuit Breaker
Brand
Square D
SKU
PGA36120U33C
Quantity
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Square D PGA36120U33C - 1200A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for demanding industrial environments, the Square D PGA36120U33C is a 1200A, 3-pole electronic trip molded case circuit breaker. It features a Micrologic 5.0 trip unit, providing adjustable Long-Time, Short-Time, and Instantaneous (LSI) protection for superior system coordination. This P-Frame breaker installs into Square D I-Line panelboards and serves as a drop-in replacement for legacy NA361200 breakers. It is rated 35kAIC at 480VAC and includes true RMS sensing.Specifications
| Brand | Square D |
|---|---|
| Part Number | PGA36120U33C |
| Series | PGA |
| Amperage | 1200A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600VAC |
| Amperage Range | 480-1200A |
|---|
| Frame Type | PGA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards and Switchboards |
| Wire Gauge | (4) 3/0 AWG - 500 kcmil (Cu) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LSI |
| Trip Function | Long-Time, Short-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Trip Unit Model | MicroLogic 5.0 |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator |
|---|---|
| Accessories | Load Side Lugs Included |
| 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, 80% Rated, True RMS Sensing |
Product FAQs
7 answersWhat does the "U33" designation mean on the PGA36120U33C?
The "U33" indicates the breaker is equipped with a Micrologic 5.0 electronic trip unit. This provides adjustable Long-Time, Short-Time, and Instantaneous (LSI) trip functions for precise system coordination.
What does the "C" suffix indicate on this catalog number?
The "C" suffix signifies that this breaker is 100% rated. When operating at 100% of its continuous current rating, it requires specific enclosure sizing and 90 degree Celsius rated wire sized according to the 75 degree Celsius NEC ampacity chart.
What do the first three letters "PGA" represent in the part number?
"P" denotes the PowerPacT P-Frame, "G" specifies the interrupting rating tier (35kA at 480VAC), and "A" indicates an I-Line plug-on mounting style.
Which legacy circuit breakers can the PGA36120U33C replace?
This PowerPacT P-Frame breaker serves as a direct drop-in replacement for legacy Square D NA361200 circuit breakers in existing I-Line panelboards.
Does the Micrologic 5.0 trip unit include ground fault protection?
No, the Micrologic 5.0 trip unit provides LSI (Long-Time, Short-Time, Instantaneous) protection only. It does not include integral equipment ground fault protection.
How does the I-Line connection mount into the panel?
The I-Line mounting style features a plug-on design that connects directly to the busbar stack in Square D I-Line panelboards and switchboards, allowing for faster installation compared to traditional bolt-on breakers.
Does this electronic trip breaker feature true RMS sensing?
Yes, the Micrologic 5.0 trip unit utilizes true RMS sensing to accurately measure current and provide reliable protection, even in electrical systems with high harmonic distortion.
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