BF240A - 40Amp Circuit Breaker

BF240A - 40Amp Circuit Breaker

The Siemens BF240A 40 Amp 2-Pole GFCI Circuit Breaker is designed for your 120/240 VAC electrical distribution systems. It combines thermal-magnetic overcurrent protection and 5 mA ground fault protection in a single device. Intended for use in compatible Siemens panelboards, the BF240A provides branch circuit and GFCI protection where required. Featuring a 10 kAIC interrupting rating and bolt-on mounting, this breaker is commonly installed in commercial, institutional, and industrial applications. 

Its molded case design ensures proper form and fit for replacement and maintenance projects, and it is built to Siemens standards for long-term service in properly maintained electrical systems.

Key Features and Benefits

• 40A Current Rating: Provides continuous protection for circuits rated at 40 Amps.
• 2-Pole Configuration: Suitable for 120/240 VAC branch circuits.
• Class A GFCI Protection: Provides 5 mA ground fault trip threshold for personnel safety.
• Thermal-Magnetic Trip Mechanism: Protects against overloads, short circuits, and ground faults.
• 10 kAIC Interrupting Rating: Safely interrupts short-circuit current up to 10 kA.
• Bolt-On Mounting: Ensures secure installation in compatible panelboards.
• Molded Case Construction: Durable for long-term electrical system use.
• Compatibility: Designed to fit Siemens panelboards requiring 40 Amp 2-pole GFCI protection.

Technical Specifications

• Manufacturer: Siemens
• Catalog Number: BF240A
• Series: BLF
• Product Type: GFCI Circuit Breaker
• Amperage Rating: 40A
• Voltage Rating: 120/240VAC
• Number of Poles: 2
• Interrupting Rating: 10 kAIC
• Ground Fault Trip Level: 5 mA
• Trip Type: Thermal-Magnetic
• Mounting Type: Bolt-On Panelboard Mounting
• UPC: 887621215439
• Net Weight: 0.992 lb
• Country of Origin: Philippines

Material Compliance and Certifications

• UL 943 Listed
• Suitable for Class A GFCI applications
• Manufactured for electrical distribution equipment

Where It Works Best

• The BF240A is commonly installed in commercial buildings, schools, healthcare facilities, workshops, utility rooms, maintenance areas, and industrial facilities where 120/240 VAC GFCI protection is required.