Eaton DNBA3030 Thermal Magnetic Circuit Breaker - CSA Certified
Part Number: DNBA3030
Quick Summary
The Eaton DNBA3030 thermal magnetic circuit breaker protects electrical circuits in industrial control panels and machinery. Engineers often grapple with nuisance tripping, mismatched interrupt ratings, or cramped spaces that complicate panel upgrades. CSA Certified compliance provides a clear path through safety approvals and reduces regulatory risk on new installations. This unit’s three-pole design, compact footprint, and standard #14-4 AWG wiring streamline replacement projects while supporting predictable maintenance schedules and reliability improvements for your production lines. Its 10 kAIC interrupt rating and 30 A amperage rating align with common machine protection requirements, reducing downtime and warranty exposure.
Product Information
Extended Description
DNBA3030 Eaton: Eaton BAB thermal magnetic circuit breaker,Thermal magnetic circuit breakers,30A,10 kAIC,Three-pole,#14-4 AWG,DNBA
Product Name
Eaton BAB thermal magnetic circuit breaker
Catalog Number
DNBA3030
UPC
782114304716
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
Three-pole
Type
Thermal magnetic circuit breakers
Wire size
#14-4 AWG
Amperage Rating
30 A
Interrupt rating
10 kAIC
Three-pole thermal magnetic operation is designed to trip across all phases in sync, delivering coordinated protection for three-phase motors and control circuits. This aligns with best practices for minimizing unbalanced faults and nuisance trips, which in turn reduces unplanned downtime and repair costs. In real-world panel assemblies, the DNBA3030 provides reliable protection for conveyors, pumps, and machine tools while simplifying wiring strategies for service technicians. With a 30 A amperage rating and a 10 kAIC interrupt capacity, the breaker can handle typical short circuits without nuisance tripping, enabling faster machine recovery after faults. This translates into higher line efficiency and safer startup sequences for automated lines. For panel builders, the DNBA3030 offers predictable coordination with upstream protective devices and a robust margin for fault current levels in demanding automation setups. Wire compatibility is straightforward with #14-4 AWG terminations, reducing field termination time and decomposition risk. The standard catalog number DNBA3030 helps maintain bill of materials consistency across projects. This compatibility is particularly valuable when upgrading legacy equipment in legacy systems where conductor sizes are fixed and changes are costly. Compact form factor and light weight—3.5 in length, 3.25 in height, 0.4 in width, and about 1 lb—permit tighter panel layouts and simpler retrofit installations. The small footprint supports modular enclosure designs and minimizes space conflicts with other devices, relays, and wiring ducts. In addition, CSA Certification provides frontline assurance during commissioning and audits. Durable construction and reliable thermal magnetic trip curves address common objections related to inrush currents and intermittent faults. The DNBA3030 combines precise trip characteristics with rugged enclosure tolerance, helping facilities meet safety requirements while controlling maintenance costs. For automation teams, this means lower total cost of ownership and steadier production metrics over the equipment lifecycle. Its field-replaceable components and existing Eaton DNBA3030 family compatibility further simplify stocking and repair planning.
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FAQs
Install the DNBA3030 as a 3-pole device designed for three-phase circuits. Ensure adequate panel space and clearance for terminals, and terminate using #14-4 AWG conductors per the datasheet. Its 3.5 in length, 3.25 in height, and 0.4 in width help you plan enclosure layouts to avoid interference with adjacent devices.
Key specifications include a 30 A amperage rating, 10 kAIC interrupt rating, three poles, and #14-4 AWG termination. The catalog number is DNBA3030, with dimensions 3.5 in L Ă— 3.25 in H Ă— 0.4 in W and a weight of about 1 lb. It is CSA Certified for North American safety compliance.
Yes. The 30 A rating provides appropriate protection for standard machine loads, while the 10 kAIC interrupt capacity supports high fault currents typical in industrial environments. This combination helps prevent nuisance trips during normal inrush and provides robust protection for motors, drives, and control circuits without compromising safety.
The DNBA3030 is CSA Certified, reflecting compliance with North American safety and performance standards. This certification streamlines approval processes for panel assemblies and industrial projects, supports quality assurance during audits, and provides a recognized baseline of reliability for electrical protection in automation environments.
By delivering coordinated three-phase protection with a compact form factor, the DNBA3030 reduces downtime from faults and simplifies panel layouts, saving installation time and materials. The rugged thermal magnetic design minimizes nuisance trips, while CSA certification accelerates commissioning. Overall, this translates to lower maintenance costs, better uptime, and more predictable production performance.