Hager SFT440 Modular Changeover Switch I-0-II 4P 40A 400V AC

The Hager SFT440 is a high-quality modular changeover switch designed for reliable switching and isolation in electrical installations. With a 4-pole configuration and a rated current of 40A at 400V AC, this switch is ideal for industrial and commercial applications where safe and efficient power transfer is required.

Advantages

Robust construction ensures long electrical and mechanical life. The I-0-II 3-position switch allows for easy selection between two power sources or load shedding. Compact 4-module width saves space on DIN rail. Complies with international standards EN 60947-3 and IEC 60947-3.

Suitable for

• Changeover between mains and generator supply
• Load switching and isolation in distribution boards
• Industrial control panels
• Commercial building electrical systems

Key specifications

• Switch Type: Changeover Switch
• Switch Positions: I-0-II (3-position)
• Number of Poles: 4P
• Rated Current (In): 40 A
• Rated Operational Voltage (Ue): 400 V AC
• Mounting Type: DIN Rail
• Module Width: 4 Modules (70 mm)
• Rated Insulation Voltage (Ui): 500 V
• Rated Impulse Withstand Voltage (Uimp): 4 kV
• Rated Short-Time Withstand Current (Icw): 1.5 kA (1s)
• Electrical Life: 10000 cycles
• Mechanical Life: 20000 cycles
• Terminal Connection Capacity (Rigid): 1.5 - 25 mm²
• Terminal Connection Capacity (Flexible): 1.5 - 16 mm²
• Degree of Protection (Front): IP40
• Degree of Protection (Terminals): IP20
• Operating Temperature: -20 to 50 °C
• Storage Temperature: -40 to 70 °C
• Standards: EN 60947-3, IEC 60947-3

Recommendations

For optimal performance, ensure proper torque settings during terminal connection. Use appropriate cable sizes as per specifications. This switch is not intended for DC applications.