Eaton BQL315 Circuit Breaker - 10 kAIC at 120/240V
Part Number: BQL315
Quick Summary
The Eaton BQL315 thermal magnetic circuit breaker protects three-pole circuits in panelboards and equipment racks. For maintenance teams, finding exact bolt-on replacements that match conductor sizes (#14‑8 AWG Cu/Al) and mounting footprints often slows repairs. This BQL315 is HACR Rated, designed to support HVAC applications and general purpose protection in protected electrical enclosures. Bolting into standard 120/240 V distributions, it delivers 10 kAIC interrupt capability, fits #14‑8 AWG Cu/Al, and supports reliable, serviceable protection with a compact 3 x 3 in footprint. Designed by Eaton, the BQL315 aligns with common panelboard standards, reducing spare-part complexity and improving inventory management. The unit's mechanical and electrical specs support quick field testing and predictable trip curves, helping engineers meet uptime targets and safety requirements.
Product Information
Extended Description
BQL315 Eaton: BQL Classic Replacement Circuit Breakers, Bolt-on, 15A, #14-8 AWG, Cu/Al, Three-pole, 10 kAIC at 120/240V
Product Name
Eaton BAB thermal magnetic circuit breaker
Catalog Number
BQL315
UPC
782114304112
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
15 A
Interrupt rating
10 kAIC at 120/240 Vac
Voltage rating
120/240 V
Feature: Bolt-on, three-pole construction and 15 A rating with Cu/Al wire compatibility from #14 to #8 AWG. Business Impact: Enables rapid, drop-in replacements into existing panel frames, reducing downtime and service disruption. Application: Retrofit projects in panelboards and control panels where space is constrained. Feature: 10 kAIC interrupt capacity at 120/240 Vac. Business Impact: High fault protection improves system reliability and safety margins. Application: Distribution panels in light-to-medium industrial settings. Feature: HACR rated compliance. Business Impact: Supports HVAC circuit protection within same enclosure, helping meet energy code requirements. Application: HVAC control panels and climate equipment. Feature: Wire size compatibility Cu/Al #14-8 AWG. Business Impact: Broad wiring compatibility reduces stocking and eliminates field rewiring. Application: Legacy panels and mixed-wiring installations. Feature: Classic replacement BQL series. Business Impact: Streamlines procurement with true replacement for older BQL parts. Application: Retrofit and inventory management across facilities. Feature: Compact footprint and light weight. Business Impact: Easy mounting and faster commissioning in tight enclosures. Application: Space-constrained switchgear and panelboard installations.
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FAQs
The BQL315 is a three-pole bolt-on device designed for 120/240 V panelboards and equipment racks. It accepts Cu/Al conductors from #14 to #8 AWG and mirrors the BQL family's mounting pattern, enabling direct cross-compatibility with many legacy installations. This compatibility minimizes rewiring and speed repairs during retrofit projects in industrial environments.
A 10 kAIC interrupt rating means the breaker can safely interrupt high fault currents typical of industrial distributions. This reduces the risk of equipment damage and enables safer maintenance during fault events. In practice, the BQL315 delivers robust short-circuit protection in panelboards serving manufacturing lines, warehouses, and process control systems, helping facilities meet uptime targets and safety requirements.
Yes. HACR rating indicates suitability for HVAC circuits, ensuring overcurrent protection for compressors, fans, and air-handling equipment within shared enclosures. The three-pole design supports multi-phase loads, while the Cu/Al wiring capability and 120/240 V rating align with typical HVAC distribution schemes. This makes it a reliable choice for retrofit or new construction HVAC panels.
When replacing an older BQL breaker, confirm the panel accepts bolt-on BQL315 form factors and verify conductor sizing. The BQL315 supports #14‑8 AWG Cu/Al, and the 3 x 3 inch footprint fits typical enclosure clearances. Ensure the circuit’s amperage rating remains at 15 A and that the installation preserves proper labeling and trip curves.
Replacing with BQL315 delivers tangible ROI through reduced downtime and simpler parts management. Its legacy-compatible form minimizes rewiring, while the 10 kAIC rating and HACR compliance lower risk during fault events and HVAC loads. Facilities gain consistent protection, easier sourcing, and predictably maintained safety standards. This translates into measurable maintenance productivity and improved energy system reliability over the equipment lifecycle.