Siemens BF220AH GFCI Ground Fault Circuit Breaker

Description:

The Siemens BF220AH GFCI circuit breaker is used in industrial and commercial electrical distribution systems to provide branch circuit protection with integrated ground-fault interruption at 5 mA sensitivity. It combines thermal-magnetic overcurrent protection with ground-fault detection to protect equipment and personnel in 240V, 2-pole applications. Commonly installed in panelboards, control systems, and industrial machinery power distribution where high interrupt capacity and GFCI protection are required.

Applications:

The Siemens BF220AH GFCI breaker is commonly used in industrial control panels, motor-driven equipment, HVAC systems, manufacturing machinery, and commercial electrical distribution systems where 240V branch circuit protection with ground-fault safety is required. It is typically installed in environments requiring high interrupt ratings and personnel protection against leakage current in continuous-duty electrical systems.

Technical Specifications:

• Brand: Siemens
• Manufacturer Part Number (MPN): BF220AH
• Product Type: Molded Case Circuit Breaker (GFCI)
• Poles: 2 Pole
• Voltage Rating: 240 VAC
• Current Rating: 20A
• Interrupting Rating: 22 kAIC @ 240V
• Ground Fault Protection: 5 mA Class A GFCI
• Mounting Type: Bolt-on
• Trip Type: Thermal-magnetic with ground fault detection
• Frequency: 50/60 Hz
• Application System: Industrial / commercial panelboards (Siemens BLHF series)
• Function: Overcurrent + ground fault protection
• Operating Temperature: Panelboard rated industrial environment
• Standards: UL 489, UL 943 (GFCI), CSA certified

Common Replacements:

• Siemens BLHF / B220GF series GFCI breakers (same platform family)
• Eaton Cutler-Hammer GFCI molded case breakers (CH series equivalents)
• Square D QO / QOB GFCI breakers (panel-specific equivalents)