Square D PowerPacT J I-Line Ci...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$51.58

Square D PowerPacT J I-Line Circuit Breaker with MicroLogic 3.2S Trip Unit

(No reviews yet) Write a Review

Model: 566056

In Stock (leaves warehouse same day if ordered before 3pm ET)

$51.58
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks

Square D PowerPacT J I-Line Circuit Breaker with MicroLogic 3.2S Trip Unit

The Square D PowerPacT J I-Line circuit breaker protects commercial and industrial power distribution systems from overloads and short circuits. This 3-pole unit is rated 600VAC with a 25kA interrupt rating and uses the MicroLogic 3.2S electronic trip unit for long-time, short-time, and instantaneous (LSI) protection. Built for I-Line panelboard mounting, it is UL Listed, CSA Certified, and rated to IEC 60947-2.

Key Features

  • Trip Unit: MicroLogic 3.2 S electronic trip unit with LSI (long-time, short-time, instantaneous) protection.
  • Electrical Rating: 600V AC operational voltage (Ue) at 50/60 Hz per IEC 60947-2, 750V insulation voltage (Ui), 8kV impulse withstand voltage (Uimp).
  • Interrupt Capacity: 25kA rated service breaking capacity, with the J-Frame platform rated up to 65kA at 220/240V AC and 35kA at 380/440/415V AC per IEC 60947-2.
  • Configuration: 3-pole design (PowerPacT J-Frame also available in 2-pole).
  • Continuous Current Rating: 80% rated continuous current.
  • Mounting & Connection: I-Line bracket mounting with I-Line line-side connection and load-side lugs, accepting AWG 3/0...350 kcmil aluminum/copper terminals at 25-25 N.m tightening torque.
  • Enclosure Protection: IP40 front cover rating.
  • Isolation: Suitable for isolation per IEC 60947-2.

Certifications & Compliance

  • UL Listed
  • CSA Certified
  • NOM Certified
  • IEC 60947-2, NEMA, NOM-003-SCFI-2000
  • RoHS Compliant with Exemptions
  • Mercury Free

Technical Specifications

  • Warranty: 18 months
  • Warranty Period: 18 months
  • Sustainable Packaging: No
  • Mercury Free: Yes
  • Packaging Without Single Use Plastic: Yes
  • Tier Id: 1
  • ROHS Eur In Scope: Yes
  • Recycled Metal Content At Cr Level: 0 %
  • Poles Description: 3P
  • China ROHS Label: 7
  • Serviceability: Yes
  • With Recycled Cardboard: Yes
  • WEEE Product Category: 5
  • China ROHS In Scope: Yes
  • Return Indicator: Y
  • Utilisation Category: category A
  • Terminal Identifier: AL250JD
  • Take Back: No
  • Tier: 1
  • Returnability: Yes
  • Field Service Division: PPIBS
  • Long Time Pick Up Adjustment Range: 0.25...1 x In

Typical Applications

  • Commercial and Industrial Power Distribution
  • I-Line Panelboard and Switchboard Systems
  • Short-Circuit and Overload Protection
  • Motor and Feeder Circuit Protection
  • UL and CSA Listed Overcurrent Protection

Why Square D?

Square D engineers the PowerPacT J-Frame series for dependable, code-compliant circuit protection, backed by an 18-month warranty and a 15-year average life duration. With MicroLogic electronic trip technology and UL, CSA, and IEC 60947-2 certifications, this I-Line breaker suits demanding commercial and industrial installations.

Manufacturer Resources

Product Specs

Product Type:
Circuit Breaker
Series:
PowerPacT J
Voltage Rating:
600V AC
Amperage Rating:
250A
Configuration:
3-Pole
Listing:
UL Listed
Standards:
IEC 60947-2
Department:
Electrical
Product Group:
Wiring Devices

Square D 566056 – Frequently Asked Questions

How fast can I get the Square D 566056 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Square D 566056 come with a warranty?
Absolutely. The Square D 566056 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Square D 566056?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Square D 566056 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.