Siemens SIRIUS ACT Series, Red Push Button Head, Momentary, 22mm Cutout

  • RS Stock No. 874-1958
  • Mfr. Part No. 3SU1051-0AB20-0AA0
  • Manufacturer Siemens
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): CN
Product Details

22 mm Push Button Heads, Metal (Shiny)

Siemens extremely rugged IP69K push button heads, high-grade plastic actuating element with gloss metal front ring.
Available in a variety of colours, illuminated, non-illuminated or mushroom style.

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


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
Cutout Diameter 22mm
Push Button Colour Red
Push Button Shape Round
Push Button Actuation Momentary
Push Button Style Flat
Push Button Material Metal
IP Rating IP66, IP67, IP69K
Push Button Diameter 29.5mm
Body/Fixing Collar Included Yes
17 In stock for delivery within 5 working day(s) (Global Stock)
Price (ex. GST) Each
$ 11.37
(exc. GST)
$ 12.51
(inc. GST)
Per unit
1 +
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