Square D PKL36080 Molded Case Circuit Breaker
- 800A
- 3 Pole
- Unit Mount
Quantity
Square D PKL36080 - 800A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Built for commercial and industrial applications, the Square D PKL36080 is a 3-pole, 800A molded case circuit breaker. It belongs to the robust PowerPacT P-Frame family. This unit-mount breaker installs into Square D switchboards, motor control centers, and P-Frame enclosures using standard lug terminals. Rated at 65kAIC at 240V, it includes an ET 1.0I electronic trip unit with adjustable magnetic settings for long-time and instantaneous (LI) protection. It is 80% and HACR rated.Specifications
| Brand | Square D |
|---|---|
| Series | PKL |
| Amperage | 800A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 50kA @ 480VAC, 50kA @ 600VAC |
| Frame Type | PKL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Switchboards, Motor Control Centers, PowerPacT P-Frame Enclosures |
| 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 Magnetic |
| Trip Unit Model | ET 1.0I |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator, Rotary Handle, Lug Kits |
|---|---|
| Accessories | ET 1.0I Trip Unit, Lugs |
| 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 |
Product FAQs
7 answersIs the Square D PKL36080 rated for 100 percent continuous current?
No, the PKL36080 is a standard 80 percent rated circuit breaker. Applications requiring a 100 percent continuous current rating will need a different catalog number with the appropriate suffix.
What does the PKL prefix indicate in the PKL36080 catalog number?
In the Square D PowerPacT nomenclature, P designates the P-Frame architecture. K indicates the specific interrupting rating (65kA at 240V, 50kA at 480V and 600V). L specifies that it is a unit-mount breaker with factory-installed mechanical lugs on both the line and load ends.
Can the PKL36080 circuit breaker be reverse fed?
Yes, Square D PowerPacT P-Frame breakers can be reverse fed for supply-side applications, provided they do not have specific Line and Load markings. Note that if you ever upgrade this breaker to an advanced Micrologic trip unit, any reverse power flow protection settings must be disabled before backfeeding.
What type of trip unit is included with the PKL36080?
This breaker comes standard with a basic ET 1.0I electronic trip unit featuring adjustable Long-Time and Instantaneous (LI) trip functions. The P-Frame design also allows for field-interchangeable upgrades to advanced Micrologic trip units if your application later requires metering, communication, or LSI/LSIG functions.
Can I install the PKL36080 in an I-Line panelboard?
No, the PKL36080 is a unit-mount breaker with mechanical lugs on both ends. It is designed for individual enclosures, switchboards, and motor control centers. I-Line panelboards require a breaker with an I-Line plug-on termination on the line side, such as a PKA frame breaker.
Does the PKL36080 require additional terminal pad kits for wire installation?
No, because this specific catalog number includes the L termination code, it ships with factory-installed mechanical lugs on both ends. These lugs directly accept three 3/0 AWG to 500 kcmil aluminum or copper conductors per phase.
Does the PKL36080 provide equipment ground fault protection?
No, the standard ET 1.0I trip unit on the PKL36080 only provides Long-Time and Instantaneous (LI) protection. It does not include ground fault (G) protection. If ground fault protection is required for your installation, you will need a breaker equipped with an LSIG Micrologic trip unit.
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