Siemens, Yellow, Rotate-To-Unlatch 40mm Round Head Emergency Button

  • RS Stock No. 173-6855
  • Mfr. Part No. 3SU1851-0NB00-2AA2
  • Manufacturer Siemens
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): DE
Product Details

Siemens Emergency Button Enclosure

The Siemens SIRIUS ACT enclosure for a command device mushroom pushbutton has a 22mm mounting diameter with a round red body. The actuating element is made from a plastic material. It has a control point in the centre. It has a yellow-coloured metal enclosure and a holder.

Features and Benefits

• 1 M20 screw-type terminal for electrical connections
• 2NC contact configuration
• Compact design
• Floor mount
• Operating temperature ranges between -25°C and 70°C
• Rotate-to-unlatch mechanism contact type


• Industrial automation
• Marine applications
• Stationery machines


• CE certified
• DIN EN 61373
• IEC 60068-2-27
• IEC 60068-2-6
• IEC 60721
• IP66 rated
• IP67 rated
• IP69 rated
• IP69K rated
• NEMA 1, 2, 3, 3R, 4, 4X, 12, 13 rating
• UL listed

Attribute Value
Mounting Type Panel Mount
Reset Method Rotate-To-Unlatch
Normal State Configuration 2NC
Auxiliary Contacts 2
Supply Current 10 A
IP Rating IP66, IP67, IP69, IP69K
Push Button Actuation Latching
Supply Voltage 500 V ac/dc
Head Style Round
Head Diameter 40mm
Push Button Material Plastic
Length 85mm
Dimensions 85 x 109 x 89.4 mm
Width 109mm
Colour Yellow
Housing Material Metal
Depth 89.4mm
2 Within 4 working day(s) (Global stock)
12 Within 4 working day(s) (Global stock)
Price Each
MYR 386.48
Per unit
1 +
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