The HAGER SFT440 modular transfer switch is designed for manual switching between two power sources in three-phase systems — the main grid and a backup generator. Its 4-pole configuration ensures complete phase isolation, increasing safety and reliability of backup installations.
It complies with IEC 60947-3, operates at 400 V AC with a 40 A current rating, and offers long mechanical and electrical lifespan. The device is DIN-rail mountable and compact in size.
Key Features:
Switching mode: I-0-II (grid-generator)
Poles: 4P
Rated current: 40 A
Operating voltage: 400 V AC
Standard: IEC 60947-3
Frequency: 50/60 Hz
IP rating: IP20
Mechanical endurance: 200000 cycles
Electrical endurance (AC21/AC22): 25000 cycles
Mounting: DIN-rail, 4 modules
Dimensions: 83×70×71 mm
Operating temperature: −20…+50°C
Data sheet
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