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Siemens 22 mm round two-head operator green red flush buttons

SIEMENS

SIEMENS 3SU1000-3AB42-0AK0 Multihead Operator 2 Heads Round

SKU CH-4R73-74Q6W

A non-illuminated 22 mm round push-button operator with two momentary flush heads in green and red, rated IP69K and NEMA 4X for harsh environments

  • Two flush buttons in one 22 mm unit
  • Green I legend and red O legend for instant recognition
  • Round polyamide heads rated IP69K for high-pressure washdown
  • NEMA 1, 2, 3, 3R, 4, 4X enclosure compatibility
  • CE, CSA and UL listed for regulated installations

SIEMENS 22 mm Multihead Operator

This SIEMENS 3SU1000-3AB42-0AK0 is a non-illuminated multihead operator designed for industrial control panels. It suits engineers and maintenance teams who need a compact, two-function push-button station in a single 22 mm mounting hole.

Green/Red I/O legend on flush round heads

The unit provides two momentary flush buttons with a green I legend and a red O legend on a round polyamide head. This colour-coded layout gives immediate visual confirmation of start and stop functions without additional labelling.

IP69K and NEMA 4X rated for harsh environments

The operator meets IP69K and NEMA 1, 2, 3, 3R, 4, 4X ratings, so it withstands high-pressure wash-down and corrosive atmospheres. Panels without these sealing requirements will not benefit from the added protection.

Highlights

  • Two flush buttons in one 22 mm unit
  • Green I legend and red O legend for instant recognition
  • Round polyamide heads rated IP69K for high-pressure washdown
  • NEMA 1, 2, 3, 3R, 4, 4X enclosure compatibility
  • CE, CSA and UL listed for regulated installations

Specifications

BrandSIEMENS

Questions about this item

How often will the 22 mm polyamide heads need replacing under heavy use?

The polyamide heads are rated for industrial momentary cycles; replacement timing depends on your specific actuation frequency and environment.

Which rating — NEMA 4X or IP69K — limits continuous operation first?

Both ratings cover ingress protection; neither specifies a thermal or duty-cycle limit for sustained operation.

How much heat does the operator generate when pressed continuously all day?

As a non-illuminated momentary switch it produces negligible heat; the 22 mm polyamide body stays at ambient temperature during continuous actuation.

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