Eaton CH Ground Bar Kit, 21-Te...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$77.10
Eaton CH Ground Bar Kit, 21-Terminal, Aluminum

Eaton CH Ground Bar Kit, 21-Terminal, Aluminum

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Model: CH9GP21

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

$77.10
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Eaton CH Ground Bar Kit, 21-Terminal, Aluminum

The Eaton CH Ground Bar Kit, 21-Terminal, Aluminum is a ground bar kit engineered for use with 1- and 3-phase 400A CH loadcenters. Built with an aluminum bus rated for 400A and a 10 kAIC interrupt rating, this kit provides 21 terminals and two central mounting holes for organized, code-compliant grounding connections within a NEMA 1 enclosure.

Key Features

  • Terminal Configuration: 21 terminals with two central mounting holes for secure, organized grounding connections.
  • Durable Construction: Aluminum bus bar construction for reliable, long-lasting conductivity.
  • Amperage Rating: Rated 400A for use with 1- and 3-phase 400A CH loadcenters.
  • Interrupt Rating: 10 kAIC interrupt rating for dependable fault protection.
  • Compact Dimensions: Measures 4 in wide by 9.5 in long by .5 in high, with a 3/4 in size and 2-13/32 in distance between mounting holes.
  • Breaker Compatibility: Designed for use with Eaton CH main circuit breaker loadcenter systems.
  • Enclosure Rating: NEMA 1 enclosure suitable for standard indoor installations.

Certifications & Compliance

  • NEMA 1 Enclosure Rated
  • Limited Lifetime Warranty

Technical Specifications

  • Product Width: 4 in
  • Product Length/Depth: 9.5 in
  • Product Height: .5 in
  • Size: 3/4 in
  • Amperage Rating: 400 A
  • Interrupt Rating: 10 kAIC
  • Bus Material: Aluminum
  • Phase: Three-phase
  • Used With: 1- and 3-phase 400AA CH loadcenters
  • Enclosure: NEMA 1
  • Main Circuit Breaker: CH
  • Warranty: Limited lifetime
  • Department: Electrical
  • Catalog Notes: Distance between mounting holes is 2-13/32 inches

Typical Applications

  • Residential and Commercial Loadcenter Grounding
  • 1- and 3-Phase 400A CH Loadcenter Installations
  • Panelboard and Load Center Grounding Connections
  • Electrical Service Upgrades and Retrofits
  • New Construction Electrical Installations

Why Eaton?

Eaton backs the CH Ground Bar Kit with a limited lifetime warranty, an aluminum bus rated for 400A with a 10 kAIC interrupt rating, and a NEMA 1 enclosure suitable for standard installations. Designed specifically for Eaton CH main circuit breaker loadcenters, this kit delivers dependable, code-compliant grounding for professional electrical work.

Manufacturer Resources

Spec Sheet

Product Specs

Product Width:
4 in
Used with:
1- and 3-phase 400AA CH loadcenters
Amperage Rating:
400A
Product Size:
3/4 in
Product Length/Depth:
9.5 in
Product Height:
.5 in
Product Type:
Ground Bar
Phase:
Three-phase
Warranty:
Limited lifetime
Main circuit breaker:
CH
Interrupt rating:
10 kAIC
Bus material:
Aluminum
Configuration:
NEMA 1 Enclosure
Certifications:
Contact Manufacturer
Department:
Electrical
Product Material:
Aluminum
Series:
CH
Product Group:
Grounding & Bonding
Product Subgroup:
Grounding & Bonding
Product Weight:
1 lb
Product Length:
9.5 in

Eaton CH9GP21 – Frequently Asked Questions

1) How many grounding terminals does the Eaton CH9GP21 ground bar give me?
Twenty-one terminals on a single aluminum bar, plus two central mounting holes. That is enough to land equipment grounds for a panel full of branch circuits without stacking conductors under one screw, which is what most inspectors are looking for on a service upgrade.
2) Can I use this Eaton ground bar kit in an outdoor panel?
No. The CH9GP21 is configured for NEMA 1 enclosures, which is indoor, dry-location only. For an exterior or wet-location service, you need a grounding kit listed for the rainproof enclosure you are installing in.
3) Will a Square D PK ground bar kit work in an Eaton CH loadcenter?
No. The Square D PK Series ground bar kit is a QO/Homeline load center accessory, so its mounting hole pattern and bus are matched to Square D enclosures. The Eaton CH9GP21 is built for Eaton CH main circuit breaker loadcenters, specifically 1- and 3-phase 400A CH panels, and its two central mounting holes sit 2-13/32 inches apart to land on the CH can's tapped bosses. For a CH panel, stay with the CH9GP21; the PK kit belongs in a QO or Homeline panel.
4) Is an aluminum ground bar OK, or do I need copper?
The CH9GP21 uses an aluminum bus, rated 400A with a 10 kAIC interrupt rating. Aluminum bars are standard in load center grounding and accept both copper and aluminum equipment grounding conductors, so long as you torque the terminal screws to the panel's listed values.
5) Does the CH9GP21 work in a three-phase CH panelboard, or single-phase only?
Both. It is listed for 1- and 3-phase 400A CH loadcenters, with the phase attribute given as three-phase. A commercial three-phase CH panel and a single-phase 400A CH service use the same bar.
6) What part number do I order for the Eaton 21-terminal CH ground bar?
Order Eaton CH9GP21. It is a single catalog number covering the whole kit, the 21-terminal aluminum bar with its mounting hardware, so there are no finish or size options to pick between.
7) Is this bar for equipment grounds or for neutrals?
The CH9GP21 is an equipment grounding bar kit for CH loadcenters. In a sub-panel it gets bonded to the enclosure and carries the equipment grounding conductors, with neutrals kept on the isolated neutral bar. At the service disconnect, grounds and neutrals may share per the bonding arrangement of the panel.
8) I am standardizing ground bar kits across panels from different manufacturers - can I buy one part for all of them?
Ground bar kits are panel-specific rather than universal. The Eaton CH9GP21 is engineered for Eaton CH main breaker loadcenters, the Square D PK Series kit is a QO/Homeline load center accessory, and the ABB TGK Series is a 4-hole equipment ground bar kit. Standardize by panel line instead of by part: stock the CH9GP21 for the CH panels and the matching kit for each of the other enclosure brands.
9) How much room does the Eaton CH9GP21 need inside the panel?
Plan for a 9.5 inch run along the gutter, 4 inches across, and half an inch of standoff height. The two mounting holes are on 2-13/32 inch centers at the middle of the bar, so it lands on the panel's pre-tapped ground pad rather than needing new holes drilled.
How fast can I get the Eaton CH9GP21 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 CH9GP21 come with a warranty?
Absolutely. The Eaton CH9GP21 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 CH9GP21?
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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