Hager SFT440 Changeover Switch 4P 40A Centre Off DIN Rail I-0-II

The Hager SFT440 is a 4-pole 40A modular changeover switch with centre-off position for DIN rail mounting. It simultaneously switches three-phase plus neutral between two supply sources, with an off position for safe changeover. Designed for three-phase generator changeover and dual-supply applications in distribution boards.

Technical specifications:

• Part number: SFT440
• Manufacturer: Hager
• Type: Modular changeover switch, 4P, centre off
• Poles: 4P (3-phase + neutral)
• Rated current: 40A
• Switching positions: I-0-II
• Utilization category: AC21, AC22
• DIN rail: 35mm TS-35

Features and benefits:

• 4-pole design switches all phases and neutral simultaneously
• Centre-off ensures both sources are fully disconnected during transfer
• Manual operation with lockable handle for secure position selection
• Compatible with Hager distribution board range

Applications:

• Three-phase generator changeover in commercial and industrial buildings
• Dual-supply three-phase manual transfer
• Main distribution board source changeover
• ATS bypass manual switch in three-phase panels

Compliant with IEC/EN 60947-3.

Also known as: Hager SFT440, Hager 4P 40A changeover switch centre off, Hager three-phase transfer switch DIN rail, Hager SFT440 I-0-II 40A.