Eaton BQL370 thermal magnetic circuit breaker - HACR Rated
Part Number: BQL370
Quick Summary
Eaton BQL370 thermal magnetic circuit breaker protects electrical circuits in industrial panels and switchgear. Operators and maintenance teams struggle with retrofit compatibility, downtime, and inventory management during replacements. Its HACR rated compliance aligns with HVAC and general industrial protection, while the three-pole 70 A rating supports high-demand circuits. With standard wiring for Cu/Al #8-2/0 AWG and a compact 5 in x 3 in footprint, installation minimizes panel space impact. Its 10 kAIC interrupt rating at 120/240 Vac delivers robust fault interruption for multiple feeder configurations, reducing risk across critical loads. Reliability, minimized spare parts, and compatibility with Eaton parts can lower total cost of ownership over the system life.
Product Information
Extended Description
BQL370 Eaton: BQL Classic Replacement Circuit Breakers, 70A, #8-2/0 AWG, Cu/Al, Three-pole, 10 kAIC at 120/240V
Product Name
Eaton BAB thermal magnetic circuit breaker
Catalog Number
BQL370
UPC
782114304174
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
#8-2/0 AWG Cu/Al
Amperage Rating
70 A
Interrupt rating
10 kAIC at 120/240 Vac
Voltage rating
120/240 V
Feature → Business Impact → Application: Thermal magnetic trip provides fast, predictable overcurrent protection with stable nuisance-trip resistance, improving reliability for 70 A circuits in heavy-use industrial panels. This reduces unplanned downtime and extends breaker life, benefiting manufacturing throughput and equipment uptime. Applications include main feeders and branch circuits in power distribution. Feature → Business Impact → Application: Three-pole design with Cu/Al wire compatibility (#8-2/0 AWG) supports flexible wiring and simplifies retrofits across existing Eaton BQL installations, reducing wiring errors and installation time. Ideal for three‑phase motor loads in control panels and distribution enclosures. Feature → Business Impact → Application: 10 kAIC interrupt rating at 120/240 V delivers robust short-circuit interruption for diverse feeder configurations, protecting essential HVAC, HVAC/R, and industrial loads from damaging faults. Enables safer startup and continuous operation in critical systems. Feature → Business Impact → Application: HACR rating aligns protection with HVAC equipment and similar systems, enabling compliant, safer protection in climate control and packaging lines without additional accessories. Feature → Business Impact → Application: Compact 5 in x 3 in footprint and classic replacement design minimize panel space usage and retrofit effort, supporting cost-effective modernization of legacy electrical infrastructure.
Get a Quick Quote for a Eaton BQL370
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 BQL370?
Enquire Now
FAQs
Begin by ensuring the panel is de-energized and verify compatibility with BQL370 in a three-pole configuration. Use Cu/Al conductors sized #8-2/0 AWG, terminate per catalog guidelines, and secure lugs with the torque specified by Eaton. Confirm correct line/load orientation and leave space for the trip mechanism. This minimizes setup errors and ensures reliable protection from day one.
The BQL370 is rated for 70 A continuous amperage with a 10 kAIC interrupt rating at 120/240 Vac. It features a three-pole design and is compatible with Cu/Al wires #8-2/0. These specifications support protection for demanding loads while maintaining safe, fast fault clearance in typical industrial and HVAC panels.
Yes. The BQL370’s HACR rating and three-pole, 70 A capacity make it well-suited for HVAC control panels and general industrial protection categories. Its classic replacement design simplifies retrofit projects in motor control centers and distribution panels, delivering reliable overcurrent protection with minimal wiring changes.
The BQL370 carries HACR rated compliance, indicating suitability for heating, air conditioning, and refrigeration loads. While the data does not specify additional standards, HACR compliance ensures the unit is designed for typical HVAC and similar industrial environments with safe operating characteristics.
Using the BQL370 can lower total cost of ownership through longer service life, easier stocking of a single replacement part, and straightforward retrofits in legacy Eaton installations. Its compatibility with Cu/Al wiring and standard 70 A/3-pole configuration reduces downtime during maintenance and minimizes spare-part inventory needs.