Technical Specification Confirmation
PROCUREMENT & SUPPLY DECISION RECORD
Ref: ACG-SPEC-MQEKC2HU  ·  Generated: 15 Jun 2026
ACG AgaCanGroup
sales@agacaninvestment.com
agacangroup.com
Siemens SIRIUS ACT Series Twist Release Illuminated Emergency Stop Push Button, Panel Mount, 22mm Cutout, 2NC
Siemens
Siemens SIRIUS ACT Series Twist Release Illuminated Emergency Stop Push Button, Panel Mount, 22mm Cutout, 2NC
Part No.
3SU1158-1HB20-1PT0
Procurement Intelligence
The SIRIUS ACT Series is Siemens' modular push button switch family designed for industrial control panel applications requiring emergency stop functionality. This 22mm twist-release illuminated unit provides 2NC contacts with integrated auxiliary signaling. Critical verification: confirm 24VDC illumination voltage compatibility and validate twist-release mechanism meets EN 60947-5-5 safety standards for your emergency circuit design.
Industrial emergency stop control
Before ordering — verify:
☐ Twist release mechanism
☐ 24VDC lamp voltage
☐ Panel cutout sizing
Technical Specifications
Mounting TypePanel Mount
Cutout Diameter22mm
Contact Configuration2NC
Push Button ActuationTwist Release
IlluminatedYes
SeriesSIRIUS ACT
Auxiliary Contacts2
Head Diameter40mm
ACG Industrial & Infrastructure Solutions
Kampala, Uganda  ·  Malatya, Turkey
http://agacangroup.com/product/electrical-items/switches/push-button-switches-components/emergency-stop-push-buttons/siemens-sirius-act-series-twist-release-illuminated-emergency-stop-push-button-panel-mount-22mm-cutout-2nc?mal=6617e3093db68cec4546f82d
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.