SIEMENS SIRIUS ACT 3SU1400-1AA10-1LA0 Contact Module, 1 NO, Screw Terminal, Floor Mounting

The SIEMENS 3SU1400-1AA10-1LA0 contact module stands out with its robust floor-mounting design and reliable screw terminals, making it a solid choice for industrial control circuits that demand a single normally open contact. Part of the SIRIUS ACT series, it is engineered for straightforward integration and long-term dependability.

Highlights

• 1 NO contact configuration for standard switching tasks
• Screw terminals accept solid or stranded conductors from 0.5 to 2.5 mm² (20–14 AWG)
• Rated insulation voltage 500 V AC/DC and impulse withstand 6 kV
• Operational current up to 6 A at AC-15 (230 V) and 10 A at DC-13 (24 V)
• Silver alloy contacts ensure consistent performance over 10 million electrical and mechanical cycles

In daily use

Designed for floor mounting, this module fits neatly into control panels and operator stations. The screw terminal connection provides a secure, maintenance-friendly wiring method, while the wide operating temperature range from -25 to +70 °C supports use in demanding environments. The IP20 terminal protection is typical for enclosed installations, keeping wiring safe from accidental contact.

Full specifications

• Contact configuration: 1 NO
• Terminal type: Screw terminal
• Mounting type: Floor mounting
• Product series: SIRIUS ACT
• Rated insulation voltage (Ui): 500 V AC/DC
• Rated impulse withstand voltage (Uimp): 6 kV
• Rated operational current (AC-15, 230 V): 6 A
• Rated operational current (DC-13, 24 V): 10 A
• Short-circuit protection: 10 A gG fuse
• Electrical endurance: 10 x 10^6 switching cycles
• Mechanical endurance: 10 x 10^6 switching cycles
• Operating temperature range: -25 to +70 °C
• Storage temperature range: -40 to +80 °C
• Degree of protection (terminals): IP20
• Conductor cross-section (solid/stranded): 0.5 - 2.5 mm²
• Conductor cross-section (AWG): 20 - 14 AWG
• Contact material: Silver alloy

Final note

With its high electrical ratings and proven endurance, this contact module is a dependable building block for industrial control systems.