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Red 22 mm illuminated push button with plastic bezel and flush head

SIEMENS

SIEMENS 3SU1103-0AB20-1FA0 Illuminated Push Button, 22 mm, Red, 1NO/1NC

SKU CH-9DT5-0Z5J4

Red illuminated push button with momentary action and 1NO/1NC contacts rated 10A at 600V AC, IP66/IP67/IP69K sealed

  • Illuminated red button gives clear status indication at 22 mm mounting
  • Momentary flush action provides reliable operator control with plastic head
  • 1NO/1NC contact form rated 10A at 600V AC supports versatile switching
  • NEMA 1, 12, 2, 3, 3R, 4, 4X and IP66, IP67, IP69, IP69K sealing withstands harsh environments
  • Screw terminal connection enables secure wiring for industrial installations

Illuminated Push Button 22 mm

The Siemens 3SU1103-0AB20-1FA0 is a momentary illuminated push button designed for industrial control panels and safety circuits. Its 22 mm mounting diameter fits standard panel cut-outs, and the red flush operator provides clear visual status indication. The unit is supplied new and meets CAS, REACH and WEEE 2012/19/EU standards.

Contact Form 1NO/1NC Rating

The decisive specification is the contact block configuration of one normally open and one normally closed circuit, rated at 10A at 600V AC and 5A at 600V DC with NEMA designation A600/R300. This single contact form determines whether the switch matches the control logic and load requirements of the application.

Environmental Headroom IP66 IP67 IP69K

The plastic bezel and operator achieve NEMA 1, 2, 3, 3R, 4, 4X, 12 and IP66, IP67, IP69, IP69K ratings, so the button withstands high-pressure wash-down, dust ingress and temporary immersion. It is not suited for applications requiring maintained action, non-illuminated operation or a different contact arrangement.

Highlights

  • Illuminated red button gives clear status indication at 22 mm mounting
  • Momentary flush action provides reliable operator control with plastic head
  • 1NO/1NC contact form rated 10A at 600V AC supports versatile switching
  • NEMA 1, 12, 2, 3, 3R, 4, 4X and IP66, IP67, IP69, IP69K sealing withstands harsh environments
  • Screw terminal connection enables secure wiring for industrial installations

Specifications

BrandSIEMENS

Questions about this item

What does the 10 A AC rating mean for a machine circuit?

The contacts are rated to carry 10 A at 600 V AC, so the push button can directly switch motor starters, contactors or similar loads up to that current without an intermediate relay.

How does the screw-terminal connection limit wiring choices?

Screw terminals accept solid or stranded conductors and require a screwdriver for tightening; they do not support push-in or spring-cage wiring, so installation takes a few seconds per wire.

What panel cut-out and depth does the 22 mm operator need?

The device mounts in a standard 22 mm round cut-out; the flush plastic head and plastic bezel sit nearly flat on the panel, and the screw-terminal block extends behind the panel — allow enough enclosure depth for the terminal block and wiring bend radius.

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