Siemens SIRIUS ACT modulo di contatto, 2 NC, morsetto a vite, 3SU14001AA103DA0

In industrial control panels, a technician needs to add an extra set of normally closed contacts to a pushbutton or selector switch. The Siemens 3SU14001AA103DA0 contact module from the SIRIUS ACT series provides exactly that: two NC contacts in a compact, floor-mountable housing. It snaps onto the front element and is secured with a screw terminal connection, ensuring reliable switching for control circuits.

Key specifications

• Contact configuration: 2 NC (normally closed)
• Number of switching elements: 2
• Connection type: screw terminal
• Mounting type: floor mounting
• Rated insulation voltage (Ui): 500 V
• Rated operating current: 6 A at AC-15, 230 V; 10 A at DC-13, 24 V
• Mechanical endurance: 10,000,000 switching cycles
• Electrical endurance: 10,000,000 switching cycles
• Ambient operating temperature: -25 to +70 °C
• Degree of protection: IP20
• Contact material: silver alloy
• Standards compliance: IEC 60947-5-1, EN 60947-5-1

Why choose it

The SIRIUS ACT contact module is built for demanding industrial environments. Its silver alloy contacts offer excellent conductivity and long service life, while the screw terminals provide a secure, vibration-resistant connection. With a wide operating temperature range and high mechanical endurance, it ensures dependable performance in machine tools, conveyor systems, and control cabinets.

Ideal use cases

• Adding NC contacts to pushbuttons and selector switches
• Safety circuits requiring normally closed contacts
• Control panels in manufacturing and process automation
• Retrofitting existing SIRIUS ACT actuators

Good to know

The module is part of the modular SIRIUS ACT system, allowing flexible configuration of control devices. It is suitable for both AC and DC control circuits and complies with international standards, ensuring compatibility and safety. Note that the IP20 rating means it is intended for installation inside an enclosure.