Modular Transfer Switch I-0-II (grid-generator) 40A 3P SFT340

Modular Transfer Switch I-0-II (grid-generator) 40A 3P SFT340

The I-0-II SFT340 modular transfer switch is designed for manual switching between two power sources — utility grid and generator. Ensures reliable switching of three-phase circuits in backup power systems.
The device has three poles, rated current of 40 A, and is designed for DIN-rail mounting. IP20 protection ensures safe operation. Ideal for residential and commercial backup power installations.

Technical specifications:

• Switching type: I-0-II (grid-generator)

• Poles: 3 (3P)

• Rated current: 40 A

• Rated voltage: 400 V AC

• Frequency: 50–60 Hz

• Mounting: DIN-rail

• Wire size: 1.5–16 mm² (solid), 1.5–10 mm² (flexible)

• Protection class: IP20

• Dimensions: 83 × 52.5 × 70 mm

• Mechanical endurance: up to 200,000 cycles