Eaton DNBA 20A Two-Pole Therma...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$201.90
Eaton DNBA 20A Two-Pole Thermal Magnetic Circuit Breaker with 10 kAIC Interrupt Rating

Eaton DNBA 20A Two-Pole Thermal Magnetic Circuit Breaker with 10 kAIC Interrupt Rating

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Model: DNBA2020

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

$201.90
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Eaton DNBA 20A Two-Pole Thermal Magnetic Circuit Breaker with 10 kAIC Interrupt Rating

Professional Circuit Protection for Electrical Distribution Systems

The Eaton DNBA series delivers reliable two-pole thermal magnetic circuit protection with 20A capacity and 10 kAIC interrupt rating. This CSA certified circuit breaker provides dependable overcurrent protection for electrical distribution panels, accommodating wire sizes from #14-4 AWG with compact dimensions for efficient panel space utilization.

Professional Features & Benefits

  • 20A Amperage Rating: Provides optimal current capacity for medium-load branch circuits and equipment protection.
  • 10 kAIC Interrupt Rating: Delivers reliable fault current interruption capability for standard electrical distribution applications.
  • Two-Pole Configuration: Enables simultaneous protection of both hot conductors in 240V circuits and multi-wire branch circuits.
  • Thermal Magnetic Operation: Combines thermal overload protection with magnetic short-circuit protection for comprehensive overcurrent detection.
  • CSA Certification: Meets rigorous safety and performance standards for professional electrical installations.
  • Compact Design: 3.25" x 3.5" x 0.4" dimensions and 1 lb weight optimize panel space efficiency.
  • Versatile Wire Compatibility: Accommodates #14-4 AWG wire sizes for flexible installation requirements.

Technical Specifications

  • Amperage Rating: 20 A
  • Certifications: CSA Certified
  • Interrupt Rating: 10 kAIC
  • Number Of Poles: Two-pole
  • Product Details: Thermal magnetic circuit breakers
  • Product Height: 3.25 in
  • Product Length Depth: 3.5 in
  • Product Weight: 1 lb
  • Product Width: .4 in
  • Wire Size: #14-4 AWG

Professional Applications

  • Residential Electrical Panels
  • Commercial Distribution Systems
  • Industrial Control Panels
  • Multi-Unit Properties
  • Professional Offices
  • Retail Establishments
  • Light Industrial Facilities

Why Choose Eaton Quality?

Eaton circuit breakers deliver proven reliability with CSA certification ensuring compliance with safety standards. The thermal magnetic design provides dependable overcurrent protection, while the compact form factor maximizes panel efficiency for professional electrical installations.

Manufacturer Resources

Product Specs

Amperage Rating:
20A
Certifications:
CSA Certified
Interrupt Rating:
10 kAIC
Number Of Poles:
Two-pole
Product Details:
Thermal magnetic circuit breakers
Product Height:
3.25 in
Product Length Depth:
3.5 in
Product Weight:
1 lb
Product Width:
.4 in
Wire Size:
#14-4 AWG
Department:
Electrical
Product Group:
Circuit Protection
Product Type:
Circuit Breaker
Product Subgroup:
Circuit Breakers
Product Length:
3.5 in

Eaton DNBA2020 – Frequently Asked Questions

1) Will the Eaton DNBA2020 breaker land #12 or #10 copper for a 240V branch circuit?
The DNBA2020 lug accepts #14 through #4 AWG, so #12 and #10 both land fine, and the same lug takes up to #4 if you are feeding a larger load on a longer run. It is a 20A two-pole device, so the conductor you actually install has to be sized for the 20A rating and the circuit, not the maximum the lug will hold.
2) What does the two-pole version of the Eaton DNBA 20A breaker actually protect?
Two poles means both ungrounded conductors are switched and protected together, which is what a 240V load such as a baseboard heater, small motor, or well pump needs. It also handles a multi-wire branch circuit where two hots share a neutral and code calls for simultaneous disconnect. For a single 120V circuit you want a single-pole device instead.
3) What is the difference between a thermal magnetic breaker like this and a GFCI or AFCI breaker?
The DNBA2020 is a straight thermal magnetic breaker: the thermal element trips on sustained overload, the magnetic element trips fast on a short circuit. It does not sense ground fault or arc fault. If the circuit is in a location where code requires GFCI or AFCI protection, this breaker on its own will not satisfy that, and you need a dedicated GFCI or AFCI two-pole device or a downstream receptacle-type protector.
4) What part number do I order for the Eaton DNBA 20 amp two-pole breaker?
The manufacturer part number is DNBA2020 from Eaton. The DNBA prefix is the series, and the trailing digits identify the 20A rating. When you are standardizing across several panels in a building, quote that MPN so every breaker matches on pole count and interrupting rating.
5) Can I use a 20A two-pole breaker like this as a main or feeder disconnect?
The DNBA2020 is a branch-rated 20A two-pole overcurrent device with a 10 kAIC interrupting rating, sized for branch circuits and equipment protection. It is not a main breaker for a service panel. For a main or a subpanel feeder you need a device sized to the feeder ampacity and rated for the fault current at that point in the system.
How fast can I get the Eaton DNBA2020 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 DNBA2020 come with a warranty?
Absolutely. The Eaton DNBA2020 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 DNBA2020?
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 Eaton DNBA2020 from ZenSupply?
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