Eaton Power Defense Three-Pole...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$141.87
Eaton Power Defense three-pole aluminum tunnel terminal accessory, front 3/4 view showing three bare metal terminal blocks

Eaton Power Defense Three-Pole Terminal Accessory, Aluminum Wire, Tunnel Terminal

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Model: PDG3X3TA402

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

$141.87
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Eaton Power Defense Three-Pole Terminal Accessory, Aluminum Wire, Tunnel Terminal

The Eaton Power Defense Three-Pole Terminal Accessory provides tunnel-style aluminum wire terminations for Power Defense circuit breaker systems. Available in two frame sizes covering 225A and 400A three-pole configurations. Rated for AWG 500-750 aluminum conductors. CCC marked and RoHS compliant.

Key Features

  • Frame Options: Frame 2 (225A) and Frame 3 (400A) three-pole configurations available.
  • Tunnel Terminal Design: Provides secure wire termination with simplified installation and reliable contact.
  • Aluminum Wire Compatibility: Rated for AWG 500-750 aluminum conductors.
  • Three-Pole Configuration: For use with three-pole Power Defense circuit breakers.
  • Power Defense System Fit: Engineered for direct use with Eaton Power Defense breakers.

Certifications & Compliance

  • CCC Marked
  • RoHS Compliant

Technical Specifications

  • Amperage Rating: 225A (Frame 2), 400A (Frame 3)
  • Number of Poles: Three-pole
  • Connection Type: Tunnel Terminal
  • Wire Material: Aluminum
  • Wire Size: AWG 500-750
  • Series: Power Defense
  • Certifications: CCC Marked
  • Compliance: RoHS Compliant

Typical Applications

  • Industrial power distribution panels
  • Commercial electrical installations
  • Heavy-duty high-current distribution
  • Power Defense circuit breaker system upgrades

Manufacturer Resources

Product Specs

Product Type:
Breaker Terminal & Lug
Product Material:
Aluminum
Connection Type:
Tunnel Terminal
Amperage Rating:
225A, 400A
Series:
Power Defense
Standards:
RoHS Compliant
Listing:
CCC Marked
Department:
Electrical
Product Group:
Circuit Protection
Product Subgroup:
Circuit Breakers
Number Of Poles:
Three-pole

Eaton PDG3X3TA402 – Frequently Asked Questions

1) Will the Eaton Power Defense tunnel terminal kit fit my breaker, or do I have to match the frame size?
Frame size has to match. These tunnel terminal kits are frame specific: PDG2X3TA225 is for Frame 2 (225A) three-pole Power Defense breakers, and PDG3X3TA402 is for Frame 3 (400A) three-pole. A Frame 2 kit will not land on a Frame 3 breaker. Read the frame designation off the breaker before ordering, not just the trip rating.
2) Can I land 500 MCM aluminum feeders on Eaton Power Defense tunnel terminals?
Yes. The Power Defense tunnel terminals are rated for aluminum conductors in the AWG 500-750 range, so 500, 600, and 750 MCM aluminum all land. That is the whole reason to order the tunnel terminal instead of the factory lug arrangement, it takes a large single conductor per pole.
3) Does the Eaton Power Defense 400A terminal accessory work with copper wire?
The rating on these tunnel terminals is aluminum, AWG 500-750. If your feeders are copper, do not assume this terminal is the right accessory; the conductor material is part of the terminal's listing, not a preference. Specify a terminal kit rated for the conductor you are actually pulling.
4) What is a tunnel terminal on a circuit breaker and when would I use one instead of a standard lug?
A tunnel terminal is a box style connector: the stripped conductor slides into a bore in the terminal body and a setscrew clamps it. There is no separate compression lug to crimp and no bolt-on pad to torque, which cuts the parts and the labor at the breaker. On Power Defense frames the tunnel version is what you order when you are landing one large aluminum conductor per pole rather than paralleling smaller cables onto a bolted pad.
5) How many terminals come in an Eaton Power Defense three-pole terminal kit?
Each kit covers all three poles of a three-pole Power Defense breaker. You order one kit per breaker, not one per phase. Note these are line and load side terminals for one end, so a breaker being fed and tapped with the same conductor size needs the kit specified for each end you are landing.
6) Can I add these tunnel terminals to a Power Defense breaker already installed in a panel?
Yes, they are field-installable accessories for Power Defense frames rather than a factory-only option, so an existing three-pole breaker can be retrofitted when a feeder upsize pushes you to 500-750 MCM aluminum. Match the kit to the breaker frame, Frame 2 or Frame 3, and de-energize the gear before pulling the existing terminal shields.
7) Is the Eaton Power Defense terminal accessory RoHS compliant and does it carry CCC marking?
Both. The Power Defense tunnel terminal accessory is RoHS compliant and CCC marked, which matters if your facility's procurement spec calls for restricted-substance documentation or the gear is destined for a project with Chinese compulsory certification requirements.
How fast can I get the Eaton PDG3X3TA402 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 Eaton PDG3X3TA402 come with a warranty?
Absolutely. The Eaton PDG3X3TA402 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 Eaton PDG3X3TA402?
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
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