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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, positive latching, acc. to EN ISO 13850, rotate-to-unlatch, with yellow backing plate, inscription: EMERGENCY STOP, with holder, 1 NC, screw terminal (3SU1150-1HB20-1CG0)

Siemens · Control & Automation · Pushbuttons & Pilot Lights · Germany · siemens.com
Part Number
3SU1150-1HB20-1CG0  ·  HS 8536.50
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Siemens 3SU1150-1HB20-1CG0 is a SIRIUS ACT complete emergency-stop actuator in the 22 mm command and signalling family, with a 40 mm shiny-metal mushroom head and rotate-to-unlatch positive latching per EN ISO 13850. The unit ships with a yellow backing plate bearing the EMERGENCY STOP inscription, one holder and a 1 NC screw-terminal contact block. Protection is IP66/IP67/IP69K with the terminal at IP20, and the actuator suits panel-mount cutouts across machinery and process installations.

Technical Specifications

Manufacturer part number (MPN)3SU1150-1HB20-1CG0
EAN / GTIN4011209956896
Sales unitpcs
Product brand nameSIRIUS ACT
Product designationEMERGENCY STOP mushroom pushbuttons
Design of the productComplete unit
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
Outer diameter of the actuating element40 mm
Number of contact modules1
Number of LED modules0
Insulation voltage rated value500 V
Degree of pollution3
Type of voltage of the operating voltageAC/DC
Surge voltage resistance rated value6 kV
Protection class IPIP66, IP67, IP69(IP69K)
Protection class IP of the terminalIP20
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
Electrical endurance (operating cycles) typical300 000
Thermal current10 A
Continuous current of the C characteristic MCB10 A; for a short-circuit current smaller than 400 A
Continuous current of the quick DIAZED fuse link10 A
Continuous current of the DIAZED fuse link gG10 A
General technical data — Net Weight123.5 g
At AC — at 50 Hz rated value5 ... 500 V
At AC — at 60 Hz rated value5 ... 500 V
At AC — at DC rated value5 ... 500 V
Contact reliabilityOne maloperation per 100 million (17 V, 5 mA), one maloperation per 10 million (5 V, 1 mA)
Design of the contact of auxiliary contactsSilver alloy
Number of NC contacts for auxiliary contacts1
Number of NO contacts for auxiliary contacts0
Type of electrical connection — of modules and accessoriesScrew-type terminal
Type of connectable conductor cross-sections — solid with core end processing2x (0.5 ... 0.75 mm²)
Type of connectable conductor cross-sections — solid without core end processing2x (1.0 ... 1.5 mm²)
Type of connectable conductor cross-sections — finely stranded with core end processing2x (0.5 ... 1.5 mm²)
Type of connectable conductor cross-sections — finely stranded without core end processing2x (1,0 ... 1,5 mm²)
Type of connectable conductor cross-sections — for AWG cables2x (18 ... 14)
Tightening torque of the screws in the bracket1 ... 1.2 N·m
Tightening torque for auxiliary contacts with screw-type terminals0.8 ... 0.9 N·m
Service life maximum20 a
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 %
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
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
Installation/ mounting/ dimensions — height40 mm
Installation/ mounting/ dimensions — width30 mm
Mounting diameter22.3 mm
Positive tolerance of installation diameter0.4 mm
Mounting height46.4 mm
Installation width75 mm
Installation depth48.6 mm
Number of backing plates1
Hole diameter22.3 mm
Colour buttonRed
Number of command positions1
Type of buttonMushroom
Width opening75 mm
Height opening46.4 mm
Degree of protection (IP)IP67/IP69K
Number of contacts as normally closed contact1
Country of originGermany

Properties

MOQ1

Cross-References

Attached Documents