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Eaton Power Defense Three-Pole Terminal Accessory, Aluminum Wire, Tunnel Terminal
The Eaton Power Defense Three-Pole Terminal Accessory delivers reliable electrical connections for Power Defense circuit breaker systems. This professional-grade terminal accessory features a tunnel terminal design with aluminum wire compatibility (AWG 500-750), available across Power Defense frames including 400A three-pole configurations, with CCC marking and RoHS compliance for demanding industrial and commercial installations.
Key Features
- Amperage Rating: 400 A rated for high-current Power Defense breaker applications.
- Three-Pole Configuration: Designed specifically for three-pole Power Defense circuit breakers, ensuring proper system integration.
- Tunnel Terminal Design: Provides secure wire connections with enhanced contact reliability and simplified installation.
- Aluminum Wire Compatibility: Supports AWG 500-750 aluminum conductors for cost-effective large-conductor applications.
- Power Defense Compatibility: Engineered specifically for use with Power Defense systems, ensuring proper fit and performance.
- Series: Part of the Eaton Power Defense circuit breaker accessory line.
Certifications & Compliance
- CCC Marked
- RoHS Compliant
Technical Specifications
- Amperage Rating: 400 A
- Certifications: CCC Marked
- Compliances: RoHS Compliant
- Number Of Poles: Three-pole
- Product Details: Terminal
- Series: Power Defense
- Terminals: Tunnel terminal
- Used With: Power Defense
- Wire Material: Aluminum
- Wire Size: AWG 500-750
Typical Applications
- Industrial Power Distribution Systems
- Commercial Electrical Panels
- Manufacturing Facility Power Management
- Heavy-Duty Electrical Installations
- Power Defense Circuit Breaker Upgrades
- High-Current Distribution Applications
Why Eaton?
Eaton Power Defense terminal accessories provide professional-grade reliability with CCC marking and RoHS compliance. The precision-engineered tunnel terminal design and aluminum wire compatibility ensure optimal performance in Power Defense systems, delivering long-lasting, code-compliant electrical connections for demanding professional applications.
Manufacturer Resources
Product Specs
- Product Type:
- Terminal Accessory
- Product Material:
- Aluminum
- Connection Type:
- Tunnel Terminal
- Amperage Rating:
- 400A
- Series:
- Power Defense
- Standards:
- RoHS Compliant
- Listing:
- CCC Marked
- Department:
- Electrical
- Product Group:
- Wire Connectors & Terminals
- Product Subgroup:
- Lugs & Terminals
- 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?
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Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
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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.
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