Eaton DNBA2020 Thermal Magnetic Circuit Breaker - CSA Certified
Part Number: DNBA2020
Quick Summary
The Eaton DNBA2020 thermal magnetic circuit breaker protects motor and panel circuits from overload and short circuits. Engineers often struggle with nuisance trips and downtime caused by undersized protection or improper coordination. CSA Certified equipment provides assurance during audits and inspections, while the thermal magnetic mechanism delivers both instantaneous short-circuit protection and steady overload protection. This model's two-pole design, 20 A rating, and 10 kAIC interrupt capability align with common industrial panel requirements, simplifying procurement and coordination with other Eaton protection devices. In addition to robust protection, its compact form and compatibility with #14-4 AWG wiring support efficient, scalable installations in control cabinets and panel boards.
Product Information
Extended Description
DNBA2020 Eaton: Eaton BAB thermal magnetic circuit breaker,Thermal magnetic circuit breakers,20A,10 kAIC,Two-pole,#14-4 AWG,DNBA
Product Name
Eaton BAB thermal magnetic circuit breaker
Catalog Number
DNBA2020
UPC
782114304709
Product Length/Depth
3.5 in
Product Height
3.25 in
Product Width
0.4 in
Product Weight
1 lb
Certifications
CSA Certified
Number of poles
Two-pole
Type
Thermal magnetic circuit breakers
Wire size
#14-4 AWG
Amperage Rating
20 A
Interrupt rating
10 kAIC
Feature: Thermal magnetic protection combines thermal overload sensing with magnetic instantaneous trip. Business Impact: Delivers precise protection for motor circuits and panel boards, reducing nuisance trips and equipment wear. Application: Ideal for motor control centers and control panels where uptime matters. Feature: 20 A nominal rating with a 10 kAIC interrupt capability. Business Impact: Ensures reliable fault interruption for high-current faults, minimizing damage to drives and wiring. Application: Suitable for moderate-load industrial circuits and equipment protection. Feature: Wire compatibility with #14-4 AWG conductors. Business Impact: Simplifies wiring runs and reduces the need for adapters or rewiring during upgrades. Application: Convenient in standard branch circuit wiring within control cabinets. Feature: Compact footprint with dimensions of 3.5 in length, 3.25 in height, and 0.4 in width; weight around 1 lb. Business Impact: Maximizes panel space, enabling denser, organized installations and easier cable management. Application: Fits in crowded panel boards and compact control panels. Feature: CSA Certified protection. Business Impact: Supports compliance documentation and procurement workflows for North American facilities. Application: Streamlines audits and supplier qualification while delivering trusted Eaton protection.
Get a Quick Quote for a Eaton DNBA2020
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton DNBA2020?
Enquire Now
FAQs
The DNBA2020 is a two-pole unit designed for standard panel board wiring with #14-4 AWG conductors. Its dimensions (3.5 in L x 3.25 in H x 0.4 in W) and a weight of 1 lb support compact installations in control cabinets. Use with typical panel wiring practices and Eaton protection devices to ensure coordinated protection and easy replacement.
The DNBA2020 combines thermal overload sensing with magnetic instantaneous trip, enabling both steady overload protection and rapid response to short circuits. The 20 A rating paired with a 10 kAIC interrupt rating provides reliable fault interruption, reducing motor and wiring damage and improving uptime in motor-driven applications.
The data shows CSA certification and a compact enclosure-ready form, but it does not specify an IP rating or outdoor enclosure suitability. For outdoor or high-vibration environments, verify enclosure protection, mounting, and any additional accessory requirements with the manufacturer guidance and verify if a weatherproof enclosure is used.
Key documents include the Eaton Specification Sheet for DNBA2020 and the Circuit Breakers Explained video. The datasheet provides exact electrical ratings, wiring details, and installation guidance, while the video offers practical explanations on breaker operation and protection strategy for industrial panels.
With a compact 1 lb form factor, reliable 10 kAIC fault interruption, and CSA certification, the DNBA2020 supports longer mean time between failures and smoother audits. Fewer nuisance trips and straightforward wiring reduce maintenance time, while the robust protection minimizes downstream repair costs in panel boards and motor circuits.