Square D PGA36040U41A Molded Case Circuit Breaker
- 400A
- 3 Pole
- I-Line
Square D
PGA36040U41A
Molded Case Circuit Breaker
Brand
Square D
SKU
PGA36040U41A
Quantity
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Square D PGA36040U41A - 400A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial power distribution, the Square D PGA36040U41A is a 400A, 3-pole electronic trip MCCB. It provides robust protection for heavy-duty systems. The unit mounts into Square D I-Line panelboards and switchboards. It serves as a reliable substitute for PJA36040U41A and PLA36040U41A breakers in existing setups. It features a Micrologic 3.0A trip unit with an integrated ammeter and adjustable LI protection, delivering a 35kAIC rating at 480VAC.Specifications
| Brand | Square D |
|---|---|
| Series | PGA |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600VAC |
| Amperage Range | 160-400A |
|---|
| Frame Type | PGA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Square D I-Line 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 3.0A |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator, Communication Module |
|---|---|
| Accessories | Micrologic 3.0A 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 | HACR Rated, True RMS Sensing, 80% Rated |
Product FAQs
7 answersWhat panelboards are compatible with the PGA36040U41A circuit breaker?
This breaker is specifically designed for installation in Square D I-Line panelboards and I-Line switchboards. It is not compatible with standard unit-mount or NQ/NF series panels.
What wire sizes are accepted by the lugs on the PGA36040U41A?
The standard mechanical lugs on this breaker accept three 3/0 AWG to 500 kcmil aluminum or copper (Al/Cu) conductors per phase.
What does the U41A suffix indicate on this PowerPacT breaker?
The U41A suffix designates that the breaker is equipped with a Micrologic 3.0A electronic trip unit. This provides adjustable long-time and instantaneous (LI) protection, along with integrated ammeter functionality for current monitoring.
Does the PGA36040U41A provide ground fault protection?
No, this model is equipped with an LI (long-time and instantaneous) trip unit. If your application requires equipment ground fault protection, you will need a breaker with an LSIG trip unit, such as a Micrologic 6.0.
Are the trip units on PowerPacT P-Frame breakers interchangeable?
Yes, the Micrologic trip units on P-Frame breakers like the PGA36040U41A can be interchanged in the field. This allows you to upgrade the trip unit for advanced metering or different protection functions without replacing the entire breaker frame.
How is the PGA36040U41A mounted into an electrical system?
It features an I-Line style plug-in connection on the line side, allowing it to mount directly onto the busbar of an I-Line panelboard. The load side utilizes standard mechanical lugs for wire termination.
Is the PGA36040U41A rated for 100% continuous current?
No, this breaker has a standard 80% continuous current rating.
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