Schneider Electric / Square DPJL36120U44A
Square D PJL36120U33A Molded Case Circuit Breaker
- 1200A
- 3 Pole
- Unit Mount
Square D
PJL36120U33A
Molded Case Circuit Breaker
Brand
Square D
SKU
PJL36120U33A
Quantity
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Square D PJL36120U33A - 1200A 3 Pole Molded Case Circuit Breaker
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Description
Built for heavy-duty commercial use, the Square D PJL36120U33A is a 1200A, 3-pole PowerPacT P-Frame circuit breaker. It delivers precise electronic protection for complex electrical networks. The unit-mount configuration installs into Square D QED switchboards, Model 6 MCCs, and P-Frame enclosures, serving as a replacement for older PE Series models. It features a Micrologic 5.0 trip unit with adjustable long-time, short-time, and instantaneous (LSI) settings and 65kAIC at 480V.Specifications
| Brand | Square D |
|---|---|
| Part Number | PJL36120U33A |
| Series | PJL |
| Amperage | 1200A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC |
| Frame Type | PJL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D QED Switchboards, Model 6 Motor Control Centers, PowerPacT P-Frame Enclosures |
| Wire Gauge | (4) 3/0 AWG - 500 kcmil (Al/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 |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Padlock Attachment |
|---|---|
| Accessories | Micrologic 5.0 Trip Unit |
| 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 | 80% Rated, Current Limiting, HACR Rated, True RMS Sensing |
Product FAQs
10 answersIs the PJL36120U33A rated for 100% continuous current?
No, the PJL36120U33A is a standard 80% rated circuit breaker. If your application requires a 100% continuous current rating, you will need the version with a "C" suffix, which is catalog number PJL36120CU33A.
Does the PJL36120U33A support Zone-Selective Interlocking (ZSI)?
Yes, the included Micrologic 5.0 trip unit features Zone-Selective Interlocking (ZSI) on the short-time protection function. This allows for improved coordination and faster fault clearance when connected to compatible downstream breakers.
Can I mount the PJL36120U33A in an I-Line panelboard?
No, the PJL36120U33A is a unit-mount breaker designed for feed-thru applications and comes with mechanical lugs on both ends. For an I-Line panelboard installation, you must use the I-Line version, catalog number PJA36120U33A.
What is the difference between the PJL36120U33A and the PGL36120U33A?
The difference is the interrupting rating. The PJL36120U33A has a "J" interrupting rating (65kA at 480VAC), while the PGL36120U33A has a lower "G" interrupting rating (35kA at 480VAC). Both share the same physical dimensions and Micrologic 5.0 trip unit.
Does the PJL36120U33A provide equipment ground fault protection?
No, the Micrologic 5.0 trip unit in this breaker only provides Long-Time, Short-Time, and Instantaneous (LSI) protection. For equipment ground fault protection (LSIG), you need a breaker with a Micrologic 6.0 trip unit, such as the PJL36120U44A.
Can I field-install a motor operator on the PJL36120U33A for remote control?
No, motor operators (MCH) for PowerPacT P-frame breakers are factory-installed only. If your application requires an electrically operated breaker, you must order a model with an "M" suffix in the catalog number.
What does the "U33A" suffix mean in the PJL36120U33A catalog number?
The "U33A" suffix indicates that the breaker is equipped with a Micrologic 5.0 electronic trip unit. This standard trip unit provides adjustable Long-Time, Short-Time, and Instantaneous (LSI) protection without an integrated ammeter or power metering.
Is the PJL36120U33A suitable for reverse feeding?
Yes, PowerPacT P-frame electronic trip circuit breakers are suitable for reverse feeding. However, always verify specific application requirements and local codes before installation.
What is the higher interrupting rating alternative to the PJL36120U33A?
If your system requires a higher interrupting rating than 65kA at 480VAC, you can use the PLL36120U33A. The "L" interrupting rating provides 100kA at 480VAC while maintaining the same frame size and trip unit.
Does the PJL36120U33A come with terminal nuts or lugs?
The "L" in the PJL catalog number indicates this breaker is supplied with mechanical lugs on both the line and load ends. If you need a version with terminal nuts for busbar connections, you would need the "F" termination option, which is catalog number PJF36120U33A.
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