Hager SFT140 Changeover Switch 1P 40A 230V Top Common I-0-II DIN Rail

The Hager SFT140 is a 1-pole modular changeover switch with a top common point and three switching positions (I-0-II), designed for controlled switching between two independent circuits or power sources. It mounts on a standard DIN rail and provides a clear mechanical and visual indication of the selected position.

Technical specifications:

• Part number: SFT140
• Manufacturer: Hager
• Type: Modular changeover switch, top common point
• Poles: 1P (single pole)
• Rated current: 40A
• Rated operational voltage: 230V AC, 50/60Hz
• Rated insulation voltage: 440V
• Switching positions: I-0-II (On-Off-On)
• Utilization category: AC21A / AC22A
• Short-circuit capacity: 0.60kA (with gl-gG fuses)
• IP rating: IP20 (IP2X with terminal covers)
• Wire cross-section: 1.5 to 16mm2 solid / 1.5 to 10mm2 flexible
• Tightening torque: 1.80 Nm
• Operating temperature: -20°C to 50°C
• Mechanical endurance: 200,000 cycles
• Electrical endurance: 25,000 cycles (AC21/AC22)
• Dimensions: 83mm (H) x 17.5mm (W) x 70mm (D), 1 module
• Mounting: DIN rail

Features and benefits:

• Three-position operation (I-0-II) allows safe isolation between two circuits with a neutral off position
• Green/red mechanical contact indication for instant visual status check
• Lockable in both extreme positions (requires accessory MZN175)
• Compact 1-module width saves panel space
• Top common point design simplifies wiring for generator transfer applications

Applications:

• Manual transfer switching between mains supply and backup generator
• Switching between two independent power circuits in distribution boards
• Source changeover in residential, commercial and industrial installations
• Main switching and isolation in consumer units

Compliant with IEC 60669-1 and IEC 60947-3. RoHS and REACh-SVHC compliant.

Also known as: Hager SFT140, 1P 40A changeover switch DIN rail, modular transfer switch 40A, I-0-II switch 1 pole 40A, generator changeover switch 40A.