Hager SFT225 Modular Changeover Switch I-0-II 2P 25A 230V AC DIN Rail

In industrial control panels and building installations, the Hager SFT225 changeover switch provides reliable manual switching between two power sources or circuits. This 2-pole, 25 A modular device is designed for DIN rail mounting and features a common terminal at the top, making it ideal for applications such as generator changeover, lighting control, and motor reversing.

Key specifications

• Switch type: Changeover switch (I-0-II)
• Number of poles: 2P
• Rated operational current: 25 A
• Rated operational voltage: 230 V AC
• Mounting: DIN rail, 2 modules wide
• Connection: Screw terminals, 1.5–16 mm² rigid, 1.5–10 mm² flexible
• Electrical durability: 10,000 cycles
• Mechanical durability: 20,000 cycles
• Operating temperature: -20 to 50 °C
• IP rating: IP40 front, IP20 terminals
• Standards: EN 60947-3

Why choose it

The SFT225 ensures safe and dependable manual control in demanding environments. Its robust construction and high electrical endurance reduce maintenance needs, while the clear I-0-II positions provide unambiguous switching. Screw terminals guarantee secure, vibration-resistant connections, and the compact 2-module design optimizes panel space.

Ideal use cases

• Manual transfer between main and backup power sources
• Control of lighting circuits with two supply options
• Motor reversing applications
• Isolation and switching in industrial control systems

Good to know

The switch is compliant with EN 60947-3 and suitable for use in distribution boards and enclosures. It operates at 50/60 Hz and has a rated impulse withstand voltage of 4 kV and rated insulation voltage of 250 V.