Siemens SIRIUS ACT 2 Position Key Switch Head Momentary

  • RS Stock No. 874-1734
  • Mfr. Part No. 3SU1000-4BC01-0AA0
  • Manufacturer Siemens
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): DE
Product Details

22 mm Key Switch Heads, Plastic

Siemens extremely rugged IP69K high-grade plastic key-operated switch heads.

Self-holding function of the actuator when mounting
Twist prevention integrated into patented holder design
Stackable contact modules
One-handed installation
Suitable for use in extreme environments
No special tools required
Simple geometry for mounting holes


Replacement Ronis Key - 103-8579


IEC 60947-1, EN 60947-1
IEC 60947-5-1, EN 60947-5-1

Siemens Sirius Act Range

The SIRIUS ACT range of push buttons and signalling devices presents an expertly designed selection of push buttons, pilot lights and switches that are intelligent, reliable and physically robust. An innovative snap-on concept makes the task of installing a unit so effortless that it can be done with one hand.

Made with real metals and high-grade plastics, installed with smart functions and interaction abilities, these state-of-the-art push buttons, indicator lights and switches have been extreme element tested to guarantee a long usage life and reliability for all your operations.

One-handed installation without special tools
Components can be snapped on without having to hold the other side
Installation possible in a slanted position
Modular concept
Stylish design & high-quality materials
Extremely Rugged & Reliable
Flexible Communication - AS-I, IO Link and Profinet

Attribute Value
Actuator Type Key
Cutout Diameter 22mm
Number of Positions 2
Key Type Ronis
Switch Actuation Momentary
Key Withdrawal Position Center-Left
IP Rating IP20
Angle of Throw 45°
Illuminated No
Number of Keys 2
4 In stock for delivery within 5 working day(s) (Global Stock)
Price (ex. GST) Each
$ 38.54
(exc. GST)
$ 42.39
(inc. GST)
Per unit
1 +
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