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Datasheet generated 2026-10-07
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Siemens 3SU1000-1HB20-0AA0 SIRIUS ACT Emergency Stop Mushroom Pushbutton, 40 mm Red, Rotate-to-Unlatch

Siemens · Control & Automation · Pushbuttons & Pilot Lights · Germany · siemens.com
Part Number
3SU1000-1HB20-0AA0  ·  HS 8538.90
Siemens 3SU1000-1HB20-0AA0 SIRIUS ACT Emergency Stop Mushroom Pushbutton, 40 mm Red, Rotate-to-Unlatch

Siemens 3SU1000-1HB20-0AA0 is a SIRIUS ACT 22 mm emergency-stop actuator with 40 mm red mushroom head in plastic. It provides EMERGENCY OFF/STOP function with positive latching to EN ISO 13850 and rotate-to-unlatch release. Protection rating is IP66/IP67/IP69K with a typical mechanical life of 300,000 operating cycles for machine and panel safety circuits.

Technical Specifications

Manufacturer part number (MPN)3SU1000-1HB20-0AA0
EAN / GTIN4011209937758
Sales unitpcs
Product brand nameSIRIUS ACT
Product designationEMERGENCY STOP mushroom pushbuttons
Design of the productActuating/signaling element
Product type designation3SU1
Product linePlastic, black, 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 devicerotate-to-unlatch mechanism
Number of switching positions2
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
Shock resistance — for railway applications according to EN 61373Category 1, Class B
Vibration resistance — according to IEC 60068-2-610 ... 500 Hz: 5 g
Vibration resistance — for railway applications according to EN 61373Category 1, Class B
Operating frequency maximum600 1/h
Mechanical service life (operating cycles) typical300 000
Reference code according to IEC 81346-2S
General technical data — Net Weight45 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 height45.3 mm
Installation width40 mm
Installation depth26.3 mm
Hole diameter22.3 mm
Colour buttonRed
Suitable for lightingNo
Unlocking methodTurn-release
Spring-returnNo
Diameter cap40 mm
Suitable for emergency stopYes
Type of buttonHigh
With lightingNo
Width opening40 mm
Height opening45.3 mm
Degree of protection (IP)IP67/IP69K
With front ringNo
Construction type lensRound
Switching function latchingNo
Country of originGermany

Properties

MOQ1

Cross-References

Attached Documents