We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in

SIEMENS

SIEMENS 3SU1050-1CD20-0AA0 Mushroom Head Push Button, Red, 22 mm

SKU CH-RKTK-4HKPD

Red 60 mm mushroom-head emergency stop button, 22 mm mounting, momentary action, metal construction, IP66/IP67/IP69K sealed, NEMA 1/2/3/3R/4/4X/12 rated

  • Instant emergency stop with large 60 mm red mushroom head
  • Rugged all-metal construction resists impact and wear
  • Sealed to IP66 IP67 IP69 IP69K for wash-down environments
  • Certified NEMA 1 2 3 3R 4 4X for indoor and outdoor use
  • Compliant with REACH RoHS WEEE 2012/19/EU directives

SIEMENS 22 mm Mushroom Head Push Button

The SIEMENS 3SU1050-1CD20-0AA0 is a red mushroom head push button designed for industrial control panels. It features a 60 mm metal operator head with metal bezel and base construction. The momentary action switch carries NEMA 1, 2, 3, 3R, 4, 4X, 12 ratings and IP66, IP67, IP69, IP69K ingress protection. It complies with REACH, RoHS and WEEE 2012/19/EU standards.

Suited for emergency stop

This unit fits 22 mm mounting cutouts in metal enclosures requiring high ingress protection. It serves machinery builders needing a durable momentary actuator with broad NEMA and IP ratings. Buyers requiring illuminated heads, maintained action or legend plates should look at alternative operator types. The low voltage design limits use to compatible control circuits only.

60 mm actuator with IP69K wash-down rating

The large metal mushroom head provides clear actuation for gloved operators in harsh environments. IP69K rating withstands high-pressure, high-temperature wash-down common in food and pharmaceutical plants. NEMA 4X and 12 ratings cover indoor and outdoor corrosion protection. The momentary function resets automatically, so it does not latch for maintained emergency stop circuits.

Highlights

  • Instant emergency stop with large 60 mm red mushroom head
  • Rugged all-metal construction resists impact and wear
  • Sealed to IP66 IP67 IP69 IP69K for wash-down environments
  • Certified NEMA 1 2 3 3R 4 4X for indoor and outdoor use
  • Compliant with REACH RoHS WEEE 2012/19/EU directives

Specifications

BrandSIEMENS

Questions about this item

Does the 22 mm mushroom head push button need a specific mounting hole size in the panel?

Yes, it is designed for a standard 22 mm panel cut-out so the panel must already have that opening.

Can the metal bezel and head withstand the same NEMA 4X and IP69K wash-down conditions as older stainless enclosures?

The metal bezel and head meet NEMA 1, 2, 3, 3R, 4, 4X, 12 and IP66, IP67, IP69, IP69K, matching those enclosure ratings.

How do I confirm the momentary action is functioning correctly after wiring?

Press the red 60 mm mushroom head; the contacts should change state only while held and return when released.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.