Siemens Contact module with 2 contact elements, 1NO + 1NC

Product Overview

The Siemens 3SU1400-1AA10-3FA0 is a contact-block module from the SIRIUS ACT 3SU1 series. It is designed for front-plate mounting in control-panel cutouts (22 mm standard) and provides one change-over auxiliary contact (1 NO + 1 NC) to be used with actuators such as push-buttons, selector switches or signalling devices. The module is suitable for integration in industrial control panels, operator consoles and machine-control enclosures where compact, modular control devices are required.

Key Features

• Contact module for SIRIUS ACT 3SU1 series
• Provides 1 NO + 1 NC contact — change-over contact configuration
• Spring-type terminals for quick and secure wiring
• Front-mount contact block, 22 mm standard panel cut-out
• Rated insulation voltage: 500 V
• Suitable for AC or DC control voltages (wide range)
• Surge-voltage resistance: 6 kV
• Compact and modular — easy combination with actuators or indicators in panel layout
• Long mechanical and electrical lifecycle — sturdy design for industrial environments

Technical Specifications

• Article Number: 3SU1400-1AA10-3FA0
• Product Series: SIRIUS ACT 3SU1
• Contact Configuration: 1 NO + 1 NC (change-over contact)
• Rated Insulation Voltage (Ui): 500 V
• Surge Voltage Withstand (Uimp): 6 kV
• Terminal Type: Spring-type terminals (for easy wiring)
• Acceptable Control Voltage (AC/DC): 5 … 500 V (AC or DC) for the contact block circuit :contentReference[oaicite:1]{index=1}
• Thermal Current Rating (Ith): 10 A :contentReference[oaicite:2]{index=2}
• Mechanical Service Life (typical): 10,000,000 operations (make/break cycles) :contentReference[oaicite:3]{index=3}
• Connection Cross-Section (conductors): solid 0.25 … 1.5 mm²; finely-stranded with end sleeves 0.25 … 0.75 mm² (or up to 1.5 mm² depending on conductor type) :contentReference[oaicite:4]{index=4}
• Mounting: Front-plate mounting, 22 mm panel cut-out standard (SIRIUS ACT 3SU1 system) :contentReference[oaicite:5]{index=5}
• Protection Class (enclosure): IP40 (front), IP20 (terminals) :contentReference[oaicite:6]{index=6}
• Shock / Vibration Resistance: Shock: 15 g / 11 ms (IEC 60068-2-27), Vibration: 5 g, 10–500 Hz (IEC 60068-2-6) :contentReference[oaicite:7]{index=7}
• Operating Frequency (max): 3,600 operations/hour :contentReference[oaicite:8]{index=8}
• Ambient Operating Temperature Range: –25 °C … +70 °C :contentReference[oaicite:9]{index=9}

Compliance & Certifications

• Compliant with SIRIUS ACT 3SU1 series standards for control and signalling devices :contentReference[oaicite:10]{index=10}
• Designed for industrial control-panel and machine-control applications — suitable for AC/DC signalling circuits across a wide voltage range
• Surge-voltage and insulation ratings allow safe operation under typical industrial environmental and electrical conditions

Applications

The 3SU1400-1AA10-3FA0 contact block is intended for use in control panels, operator stations, machine-control cabinets and industrial automation systems. Typical applications include coupling with push-buttons, selector switches, indicator lights or emergency stops, to provide a clean, modular, and maintainable control-circuit interface. The module’s compact design and standard 22 mm cut-out make it ideal for retrofit installations, modular panel building or expansion of existing control boards.