Schneider Electric PJA36060U31A Molded Case Circuit Breaker
- 600A
- 3 Pole
- I-Line
Schneider Electric
PJA36060U31A
Molded Case Circuit Breaker
Brand
Schneider Electric
SKU
PJA36060U31A
Quantity
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Schneider Electric PJA36060U31A - 600A 3 Pole Molded Case Circuit Breaker
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Description
The PJA36060U31A is a 3-pole, 600A molded case circuit breaker from Schneider Electric's PowerPacT P-Frame family. Built for commercial power distribution, this 80% rated breaker delivers reliable protection up to 600VAC. It installs into Square D I-Line panelboards and switchboards using a plug-in connection. The breaker accepts 3/0 AWG to 500 kcmil wire. Rated at 65kAIC at 480V, this MCCB features a Micrologic 3.0 electronic trip unit for adjustable long-time and instantaneous protection.Specifications
| Brand | Schneider Electric |
|---|---|
| Series | PJA |
| Amperage | 600A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC |
| Amperage Range | 240-600A |
|---|
| Frame Type | P |
|---|---|
| Terminal Type | Lugs |
| For Use With | I-Line Panelboards, Switchboards |
| Wire Gauge | (3) 3/0 AWG-500 kcmil (Al/Cu) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Trip Unit Model | MicroLogic 3.0 |
| Available Options | Auxiliary Switch, Alarm Switch, Shunt Trip, Undervoltage Release, Padlock Attachment, Rating Plugs |
|---|---|
| Accessories | Micrologic 3.0 Trip Unit |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, HACR, UL |
| Temp Rating | -25C to 70C |
| Construction Features | 80% Rated, Interchangeable Trip Unit, RoHS Compliant, Mercury Free, PVC Free, HACR Rated, Trip-Free Mechanism |
Product FAQs
6 answersWhat panelboards are compatible with the PJA36060U31A?
This PowerPacT P-frame circuit breaker is designed exclusively for Square D I-Line panelboards and switchboards. It mounts directly to the bus utilizing an I-Line plug-in bracket and requires 9 inches of available bussing space.
What wire sizes do the load lugs on the PJA36060U31A accept?
The factory-installed load lugs accommodate three 3/0 AWG to 500 kcmil aluminum or copper conductors per phase. The line side features a direct plug-in bracket connection for I-Line busways.
What does the U31A suffix indicate on this circuit breaker?
The U31A suffix specifies that the breaker is equipped with a Micrologic 3.0 electronic trip unit. This provides adjustable Long-Time and Instantaneous (LI) protection for precise coordination, but does not include Short-Time or Ground Fault functions.
Can the trip unit on the PJA36060U31A be upgraded later?
Yes. The Micrologic 3.0 trip unit on this PowerPacT P-frame breaker is field-interchangeable. If your system requires advanced metering or different protection functions like LSI or LSIG in the future, the trip unit can be swapped without replacing the entire breaker block.
Is this breaker standard rated or 100% rated?
The PJA36060U31A is standard rated for continuous operation at 80% of its 600A capacity. Models with a 100% continuous rating would feature a C in the catalog number, such as PJA36060CU31A.
Does this breaker provide equipment ground fault protection?
No. The included Micrologic 3.0 (LI) trip unit only provides Long-Time overload and Instantaneous short-circuit protection. Systems requiring integrated ground fault protection will need a breaker with a Micrologic 6.0 (LSIG) trip unit.
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