Hager SFB125 1-Pole 25A Load Break Switch

When you need reliable manual isolation and switching of a single-phase circuit up to 25 A, the Hager SFB125 load break switch provides a robust solution for DIN rail installations. This compact 1-module device ensures safe disconnection and clear ON/OFF status indication, making it ideal for control, heating, lighting, and motor circuits in residential, commercial, and industrial settings.

Who is it for

Electricians, panel builders, and maintenance technicians who require a dependable switching device for single-pole circuits. It is particularly suited for applications where space is limited but performance cannot be compromised, such as distribution boards, control cabinets, and machine control panels.

Main features

• 1-pole load break switch with 25 A rated current
• Compact 1-module width (17.85 mm) for DIN rail mounting
• Clear ON/OFF switching position indicator
• Screw terminals accept rigid conductors up to 16 mm² and flexible up to 10 mm²
• High mechanical endurance of 20,000 cycles and electrical endurance of 10,000 cycles
• Complies with IEC/EN 60947-3 standards

Specifications

• Brand: Hager
• Model: SFB125
• MPN: SFB125
• EAN: 3250615510754
• Product type: Load break switch
• Number of poles: 1P
• Rated current (In): 25 A
• Rated operational voltage (Ue): 230/400 V AC
• Rated insulation voltage (Ui): 500 V
• Rated impulse withstand voltage (Uimp): 4 kV
• Frequency: 50/60 Hz
• Mounting type: DIN rail (EN 60715)
• Module width: 1 module (17.85 mm)
• Connection type: Screw terminals
• Terminal capacity rigid: 1.5 - 16 mm²
• Terminal capacity flexible: 1.5 - 10 mm²
• Degree of protection terminals: IP20
• Degree of protection front in enclosure: IP40
• Operating temperature: -20 to 50 °C
• Storage temperature: -40 to 80 °C
• Standards: IEC/EN 60947-3
• Mechanical endurance: 20,000 cycles
• Electrical endurance: 10,000 cycles
• Switching position indicator: Yes (ON/OFF)

Tips

Always ensure the circuit is de-energized before installation or maintenance. Use appropriate screwdrivers to achieve the recommended torque on terminals for secure connections. The switch is designed for use in dry environments; if installed in damp locations, provide additional protection.