Skip to main content
Expedited shipping available at checkout

Square D PLA34080 Molded Case Circuit Breaker

  • 800A
  • 3 Pole
  • I-Line
Square D PLA34080
Molded Case Circuit Breaker
Brand Square D
SKU PLA34080
Select Item Condition
Earn 17110 SuperPoints
  • 800A
  • 3 Pole
  • I-Line

Quantity

Bulk Pricing
Send your parts list for a volume quote.

Square D PLA34080 - 800A 3 Pole Molded Case Circuit Breaker

New

$17,110.00 In Stock

Quantity

Description

Engineered for robust power distribution, the PLA34080 is a 3-pole, 800A molded case circuit breaker from Square D's PowerPacT P-Frame family. It is designed for commercial and industrial facilities. This unit installs into Square D I-Line panelboards and switchboards, utilizing a convenient plug-on I-Line connection. Rated for 100 kAIC at 480VAC, it features an ET 1.0I electronic trip unit for accurate LI (Long-Time, Instantaneous) sensing and true RMS protection.

Specifications

Key specifications
Brand Square D
Part Number PLA34080
Series PLA
Amperage 800A
Poles 3
Mounting Style I-Line
Voltage 240VAC, 480VAC
Phase 3
AIC Rating 125kA @ 240VAC, 100kA @ 480VAC
Fit and installation
Frame Type PLA
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
Protection and operation
Trip Technology Electronic Trip
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Adjustable Magnetic
Trip Unit Model ET 1.0I
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Padlock Attachment
Accessories ET 1.0I 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, Current Limiting, True RMS Sensing, 80% Rated

Product FAQs

7 answers
How is the PLA34080 installed in an electrical panel?

This breaker features an I-Line plug-on connection for the line side, which mounts directly onto the panelboard bus assembly. The load side utilizes standard mechanical lugs for wire terminations.

What wire sizes are accepted by the load side lugs on this breaker?

The standard mechanical lugs on the PLA34080 accept three 3/0 AWG to 500 kcmil aluminum or copper conductors per phase.

What does the L in the PLA34080 part number signify?

The L designates the interrupting rating tier for this PowerPacT P-frame breaker, distinguishing it from lower rated G, J, or K variants. It confirms the breaker is rated for a 100kA interrupting capacity at 480VAC and 125kA at 240VAC.

What does the LI trip function code mean on this breaker?

The LI designation indicates the electronic trip unit provides adjustable Long-Time protection for overloads and Instantaneous protection for short circuits. It does not include Short-Time or Ground-Fault protection.

What equipment is the PLA34080 compatible with?

This breaker is designed exclusively for installation in Square D I-Line panelboards and I-Line switchboards. It cannot be used in standard unit-mount or drawout applications.

Can the trip unit on the PLA34080 be upgraded in the field?

Yes, Square D PowerPacT P-frame breakers feature interchangeable Micrologic trip units. The factory trip unit can be swapped in the field to add advanced functions like Short-Time protection, Ground-Fault protection, or power metering.

Does this breaker include a push-to-trip feature for testing?

Yes, PowerPacT P-frame circuit breakers include an integral push-to-trip button on the cover. This allows electricians to manually trip the breaker to verify the mechanical operation of the trip mechanism during maintenance.

SuperClub

Join free. Get 500 SuperPoints.

Earn points on eligible purchases and redeem them at checkout.

100 SuperPoints = $1 off.

Warranties

60-Day Warranty

Your purchase includes 60 days of SuperBreakers warranty coverage.

Get a Quote

Don’t see what you’re looking for?

We source obsolete and hard-to-find parts every day.

Shipping

Free Shipping Policy

Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.

Read our full shipping policy

Same Day Shipping

We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.

Expedited Shipments

Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.

International Shipping

All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.