Eaton BQL320 Classic Replacement Circuit Breaker - HACR
Part Number: BQL320
Quick Summary
Eaton BQL320 thermal magnetic circuit breaker protects critical panel circuits in industrial and commercial equipment. When selecting a genuine bolt-on replacement, engineers often struggle with fit, interrupt rating, and wiring compatibility. HACR rated for HVAC and other equipment, this device supports 120/240 V systems and three-pole protection. The BQL320 is designed for straightforward bolt-on installation, reducing panel downtime while preserving protection standards. For procurement teams, this translates to reliable stock-keeping, consistent spare parts availability, and dependable service from Eaton. As a result, design and maintenance teams gain confidence in long-term performance and simplified compliance across diverse panel environments. Ultimately, BQL320 delivers predictable protection and faster project ramp-ups in power-distribution schemes.
Product Information
Extended Description
BQL320 Eaton: BQL Classic Replacement Circuit Breakers, Bolt-on Breaker, 20A, #14-4 AWG, Three-pole
Product Name
Eaton BAB thermal magnetic circuit breaker
Catalog Number
BQL320
UPC
782114304129
Product Length/Depth
5 in
Product Height
3 in
Product Width
3 in
Product Weight
0.5 lb
Compliances
HACR Rated
Circuit breaker type
BQL
Number of poles
Three-pole
Type
Classic replacement circuit breaker
Wire size
#14-8 AWG Cu/Al
Amperage Rating
20 A
Interrupt rating
10 kAIC at 120/240 Vac
Voltage rating
120/240 V
Three-pole bolt-on design improves retrofit compatibility. This feature simplifies retrofits and reduces panel downtime by enabling quick, secure mounting in standard BQL-compatible enclosures. Application: Ideal for legacy Eaton panel upgrades and new builds in motor control centers and industrial control panels. Feature: 20 A amperage with 10 kAIC interrupt rating. Business Impact: Provides robust short-circuit protection while minimizing nuisance trips on typical industrial loads. Application: Feeds and branch circuits in 120/240 VAC systems for reliable machinery protection. Feature: HACR rated compliance. Business Impact: Safeguards HVAC installations, supporting energy-efficient operation and safe control of air handling equipment. Application: HVAC equipment protection in commercial facilities. Feature: Compact dimensions 5 in Ă— 3 in Ă— 3 in; weight 0.5 lb. Business Impact: Enables denser panel layouts and easier serviceability. Application: Panel boards and control cabinets with limited space. Feature: Cu/Al wire size #14-8 AWG. Business Impact: Provides wiring flexibility and compatibility with mixed conductor types. Application: Field wiring in facilities using copper and aluminum conductors. Feature: Classic replacement design. Business Impact: Ensures compatibility with existing BQL infrastructure and simplifies spare-part strategies. Application: Maintenance programs and stock optimization in industrial plants. This combination reduces downtime, supports standardization, and accelerates retrofits with minimal rework.
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FAQs
To install the Eaton BQL320, align it with a three-pole bolt-on slot in compatible panels and secure using mounting hardware. It accepts copper or aluminum conductors within #14-8 AWG range and is rated for 120/240 VAC with a 10 kAIC interrupt rating at that voltage. Ensure the panel design matches the BQL style and verify the replacement is a true Eaton BQL retrofit to avoid incompatibility.
Key electrical specifications for the BQL320 include a 20 A amperage rating, 10 kAIC interrupt capacity at 120/240 VAC, and a voltage rating of 120/240 V. It is a three-pole device compatible with Cu/Al wire in the #14-8 AWG range. Its compact 5 by 3 by 3 inch footprint weighs about 0.5 lb, making it suitable for space-limited panels.
Yes. The BQL320 is HACR rated and designed for HVAC and other equipment protection in 120/240 V systems. Its 20 A rating and 10 kAIC interrupt capacity help withstand inrush and short-circuit events common in motor-driven HVAC loads. It fits bolt-on Eaton BQL installations, enabling rapid replacement without rewiring in control panels.
By using an Eaton classic replacement design, BQL320 ensures compatibility with existing BQL infrastructure, simplifying stocking and repairs. The three-pole bolt-on format reduces field wiring errors, while the 20 A rating standardizes protection across circuits. Keeping BQL320 on hand minimizes downtime and supports predictable maintenance cycles in industrial facilities. This translates to lower lifecycle costs and faster incident response.
Documentation for the BQL320 includes Eaton’s official specification sheet and training resources. The Eaton Specification Sheet - BQL320 provides electrical ratings, wiring, and installation notes. For visual guidance, the circuit breakers explained video covers the bolt-on, three-pole configuration and common application scenarios. Both resources support engineering decisions, QA audits, and maintenance planning.