Overview
The Square D FAL34040 is a 3-pole molded case circuit breaker engineered for thermal magnetic overcurrent and short-circuit protection in 480V industrial and commercial electrical systems. Rated at 40 amps with an 18kA interrupting capacity at 480V, this FAL Series breaker combines robust construction with proven reliability for demanding panelboard applications.
Key Features
- Thermal Magnetic Protection: Dual-element design detects both gradual overloads (thermal) and instantaneous faults (magnetic)
- Long-Time & Instantaneous Trip Functions: Provides flexible overcurrent coordination for system protection
- Feed-Thru Connection: Line and load side lug terminals enable pass-through wiring configurations
- Bolt-On F-Frame Mounting: Secure installation in standard electrical enclosures and switchboards
- UL & CSA Certified: HACR-rated for heating, air conditioning, and refrigeration circuits
- Visi-Trip Indicator: Status window simplifies visual fault detection and maintenance
Technical Specifications
- Amperage Rating: 40A at 40°C
- Voltage: 480V AC (3-phase), 250V DC
- Poles: 3-pole
- Protection Type: Thermal Magnetic
- Interrupting Rating: 18kAIC at 480V (per UL/CSA/NOM)
- Frame Size: F-Frame
- Mounting: Bolt-on panelboard connection
- Terminal Configuration: Line lug & load lug (feed-thru)
- Conductor Size: AWG #14–#1/0 copper or #12–#1/0 aluminum
- Dimensions: 4.5"W × 4.13"D × 6.4"H
- Weight: 5 lbs
- Certifications: UL, CSA, meets HACR requirements
- UPC: 785901423324
Typical Applications
- Commercial panelboard main and branch protection
- Industrial motor control circuits
- Heating, ventilation, and air conditioning (HVAC) system protection
- Refrigeration equipment circuits
- Power distribution in manufacturing facilities
- Building electrical service entry panels
Compatibility & Replacements
Compatible With
- Square D electrical enclosures and switchboards designed for F-Frame breakers
- Standard 480V three-phase panelboards and distribution boards
- Systems requiring HACR-rated circuit protection
- Schneider Electric PowerPact and legacy Square D panel configurations
Replaces / Drop-In Replacement For
- Directly compatible with FAL-34040 and FAL34040-1042 specifications
- Legacy Square D FAL Series 40A 3-pole breakers with similar frame geometry
- For modern system upgrades, PowerPact BDL36040 serves as a contemporary substitute with enhanced features
Works With
- Square D/Schneider Electric electrical distribution systems
- Standard IEC 60947 molded case circuit breaker enclosure designs
- Existing panelboard wiring using #14–#1/0 AWG copper or aluminum
- Fault detection and monitoring systems compatible with standard breaker terminals
