Technical Specification Confirmation
PROCUREMENT & SUPPLY DECISION RECORD
Ref: ACG-SPEC-MQELYRUW  ·  Generated: 15 Jun 2026
ACG AgaCanGroup
sales@agacaninvestment.com
agacangroup.com
Siemens 3SU1 Series Twist Release Emergency Stop Push Button, Surface Mount, 1NC, IP66, IP67, IP69
Siemens
Siemens 3SU1 Series Twist Release Emergency Stop Push Button, Surface Mount, 1NC, IP66, IP67, IP69
Part No.
3SU1851-0NA00-2AC2
Procurement Intelligence
The Siemens 3SU1 Series is a heavy-duty emergency stop push button designed for surface-mount installation in industrial control panels and machinery. The twist-release mechanism prevents accidental deactivation, and the IP66/67/69 rating ensures operation in harsh, wet, or dusty environments. Verify twist-release functionality and contact configuration (1NC) compatibility with your safety circuit design before procurement.
Industrial emergency stop control
Before ordering — verify:
☐ Twist release mechanism
☐ IP66/67/69 rating verification
☐ 1NC contact configuration
Technical Specifications
Mounting TypeSurface Mount
Contact Configuration1NC
Push Button ActuationTwist Release
IlluminatedNo
Series3SU1
IP RatingIP66, IP67, IP69
ColourRed
Push Button Shapemushroom
Voltage Rating5 → 500V
Depth112.5mm
Auxiliary Contacts1NC
Width89.4mm
Push Button Diameter22mm
Push Button MaterialPlastic
Height89.4mm
ACG Industrial & Infrastructure Solutions
Kampala, Uganda  ·  Malatya, Turkey
http://agacangroup.com/product/electrical-items/switches/push-button-switches-components/emergency-stop-push-buttons/siemens-3su1-series-twist-release-emergency-stop-push-button-surface-mount-1nc-ip66-ip67-ip69?mal=6617e3cb3db68cec4548e539
This document confirms the above specification is available in the ACG Industrial catalogue. Pricing and availability on request. Forward to your procurement team to initiate an RFQ.