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Datasheet generated 2026-10-07
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Siemens SIRIUS ACT EMERGENCY STOP mushroom pushbutton, 22 mm, round, metal, shiny, red, 40 mm, with RONIS lock, lock number SB30, positive latching, acc. to EN ISO 13850, key-operated release (3SU1050-1HF20-0AA0)

Siemens · Control & Automation · Pushbuttons & Pilot Lights · Germany · siemens.com
Part Number
3SU1050-1HF20-0AA0  ·  HS 8538.90
Siemens SIRIUS ACT EMERGENCY STOP mushroom pushbutton, 22 mm, round, metal, shiny, red, 40 mm, with RONIS lock, lock number SB30, positive latching, acc. to EN ISO 13850, key-operated release (3SU1050-1HF20-0AA0)

Siemens 3SU1050-1HF20-0AA0 — SIRIUS ACT 22 mm command and signalling device. Panel-mount pushbutton, indicator lamp or emergency-stop actuator in the 22 mm cutout family. SIRIUS ACT 22mm blank metal design Emergency stop button with key.

Technical Specifications

Manufacturer part number (MPN)3SU1050-1HF20-0AA0
EAN / GTIN4011209947016
Sales unitpcs
Product brand nameSIRIUS ACT
Product designationEMERGENCY STOP mushroom pushbuttons
Design of the productActuating/signaling element
Product type designation3SU1
Product lineMetal, shiny, 22 mm
Number of command points1
Design of the actuating elementpositive latching
Principle of operation of the actuating elementlatching
Product extension optional — light sourceNo
Product extension optional — contact moduleYes
Color — of the actuating elementred
Material of the actuating elementplastic
Shape of the actuating elementround
Outer diameter of the actuating element40 mm
Type of unlocking deviceUnlocking
Number of switching positions2
Switch position for key distractionO
Lock makeRONIS
Key numberSB30
Product component front ringNo
Product function — positive openingYes
Product function — EMERGENCY OFF functionYes
Product function — EMERGENCY STOP functionYes
Protection class IPIP66, IP67, IP69(IP69K)
Degree of protection NEMA rating1, 2, 3, 3R, 4, 4X, 12, 13
Shock resistance — according to IEC 60068-2-27sinusoidal half-wave 15 g / 11 ms
Vibration resistance — according to IEC 60068-2-610 ... 500 Hz: 5 g
Operating frequency maximum600 1/h
Mechanical service life (operating cycles) typical300 000
Reference code according to IEC 81346-2S
General technical data — Net Weight115 g
Product function suitable for safety functionYes
Service life maximum20 a
Test wear-related service life necessaryYes
Proportion of dangerous failures — with low demand rate according to SN 3192020 %
Proportion of dangerous failures — with high demand rate per NC contact according to SN 3192020 %
Proportion of dangerous failures — with high demand rate per NO contact according to SN 3192050 %
B10 value with high demand rate according to SN 31920100 000
Failure rate [FIT] with low demand rate per NC contact according to SN 31920100 FIT
Device type according to ISO 13849-13
Safety device type according to IEC 61508-2Type A
T1 value for proof test interval or service life according to IEC 6150820 a
Ambient temperature — during operation-25 ... +70 °C
Ambient temperature — during storage-40 ... +80 °C
Shape of the installation openinground
Mounting diameter22.3 mm
Positive tolerance of installation diameter0.4 mm
Mounting height67 mm
Installation width40 mm
Installation depth26.3 mm
Hole diameter22.3 mm
Colour buttonRed
Unlocking methodKey-release
Diameter cap40 mm
Type of buttonHigh
With lightingNo
Width opening40 mm
Height opening67.1 mm
Degree of protection (IP)IP67/IP69K
Construction type lensRound
Country of originGermany

Properties

MOQ1

Cross-References

Attached Documents