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Siemens 3SU1050-1HB20-0AA0 emergency stop pushbutton with a prominent red mushroom head.

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Siemens 3SU1050-1HB20-0AA0

by Siemens

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OverviewThe Siemens 3SU1050-1HB20-0AA0 is a robust emergency stop pushbutton designed for paramount safety in industrial environments. This essential safety component features a prominent 40mm red mushroom head, enabling instant recognition and quick activation during critical situations. Its intuitive turn-to-release function ensures a secure reset, preventing accidental re-engagement and maintaining high safety standards. Engineered for resilience, the 3SU1050-1HB20-0AA0 boasts an IP66/IP69K protection rating, making it suitable for dusty conditions and areas requiring high-pressure cleaning, including hygienic applications. This Siemens pushbutton is an indispensable asset for any industrial setup prioritizing operator protection and equipment longevity.Key Features Highly Visible 40mm Red Mushroom Head: Guarantees rapid identification and activation for swift machine shutdown. Secure Turn-to-Release Mechanism: Prevents unintentional resets after activation, ensuring all safety protocols are followed. Superior IP66/IP69K Protection: Provides extensive resistance against dust, powerful water jets, and high-pressure cleaning, ideal for challenging and sterile environments. Compact and Ergonomic Design: Optimally designed for seamless integration into control panels, prioritizing ease of use and space efficiency. Exceptional Durability: Crafted from premium materials for long-term reliability and functionality in harsh industrial settings. Global Certifications (CE, UL, RoHS): Complies with international safety and quality standards, confirming its suitability for worldwide industrial deployment. Technical Specifications Model: 3SU1050-1HB20-0AA0 Series: SIRIUS ACT Button Type: Emergency Stop (E-Stop) Head Diameter: 40mm Release Type: Turn-to-Release Color: Red Protection Class: IP66, IP69K (Dust-tight, protected against powerful water jets and high-pressure/steam-jet cleaning) Mounting Type: Panel Mount Certifications: CE, UL, RoHS Applications Machine Safety & Industrial Automation: Provides instant shutdown capabilities for machinery and automated systems in emergencies. Factory Control Panels & Operator Stations: Enhances workplace safety across various manufacturing sectors. Heavy Machinery & Robotics: Essential for preventing hazardous operations and safeguarding personnel during equipment malfunctions. Food & Beverage Industry: IP69K rating makes it ideal for environments requiring frequent washdowns and strict hygiene. Pharmaceutical Manufacturing: Suited for cleanroom environments where cleanliness and precise control are crucial. Outdoor & Harsh Environments: Robust protection ratings ensure reliable operation in challenging weather and exposed industrial settings. Why Choose This Model?The 3SU1050-1HB20-0AA0 provides an essential layer of protection, ensuring immediate and secure machine shutdown to safeguard personnel and valuable equipment. With its IP66/IP69K ratings, this pushbutton is engineered to withstand demanding industrial conditions, from dusty workshops to high-pressure washdown areas. The turn-to-release mechanism ensures that once activated, the emergency stop remains engaged until intentionally reset, preventing accidental startups and enhancing peace of mind. Its ergonomic and compact design allows for seamless integration and user-friendliness.Order NowEnhance your industrial safety protocols with the reliable Siemens 3SU1050-1HB20-0AA0 emergency stop pushbutton. Contact us today to secure this vital component for your operational needs.FAQWhat is the primary function of the Siemens 3SU1050-1HB20-0AA0?Its primary function is to provide an immediate and secure emergency stop for machinery and industrial systems, ensuring operator safety and preventing damage to equipment.What does the IP66/IP69K rating signify for this pushbutton?The IP66/IP69K rating indicates that the pushbutton is fully protected against dust, powerful water jets, and high-pressure/steam-jet cleaning, making it suitable for harsh and hygienic environments.How is the emergency stop reset after activation?The device features a secure turn-to-release mechanism, which requires a deliberate action to reset, preventing accidental or premature restarts.

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PRODUCT DETAILS

Siemens 3SU1050-1HB20-0AA0

Overview

This is a genuine Siemens component from the 3SU Command & Signaling Devices family. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.

Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.

Key Features

  • Genuine Siemens catalog part
  • Tested before shipment
  • Backed by PalmPartsSolution warranty
  • Cross-reference and revision assistance available
  • Compatible with the broader Siemens automation ecosystem
  • Engineered to integrate inside 3SU Command & Signaling Devices installations

Compatibility

When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Siemens equipment. Where applicable, confirm:

  • Input/output voltage and current rating
  • Communication protocol and network role
  • Mounting form factor and footprint
  • Operating temperature, humidity, and IP rating
  • Required certifications (UL, CE, ATEX, marine, etc.)

Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.

Replacement Information

Three ways to source this part through PalmPartsSolution:

  1. Exact replacement — same Siemens catalog number, new or refurbished, tested and warrantied
  2. Form-fit-function equivalent — alternate revision or build that drops in without code changes
  3. Engineered migration — current-generation Siemens platform with documented conversion notes for the 3SU Command & Signaling Devices family

Contact our engineering team if you need help choosing between these tracks.

Technical Specifications

  • Model: 3SU1050-1HB20-0AA0
  • Series: SIRIUS ACT
  • Button Type: Emergency Stop (E-Stop)
  • Head Diameter: 40mm
  • Release Type: Turn-to-Release
  • Color: Red
  • Protection Class: IP66, IP69K (Dust-tight, protected against powerful water jets and high-pressure/steam-jet cleaning)
  • Mounting Type: Panel Mount
  • Certifications: CE, UL, RoHS

Applications

  • Machine Safety & Industrial Automation: Provides instant shutdown capabilities for machinery and automated systems in emergencies.
  • Factory Control Panels & Operator Stations: Enhances workplace safety across various manufacturing sectors.
  • Heavy Machinery & Robotics: Essential for preventing hazardous operations and safeguarding personnel during equipment malfunctions.
  • Food & Beverage Industry: IP69K rating makes it ideal for environments requiring frequent washdowns and strict hygiene.
  • Pharmaceutical Manufacturing: Suited for cleanroom environments where cleanliness and precise control are crucial.
  • Outdoor & Harsh Environments: Robust protection ratings ensure reliable operation in challenging weather and exposed industrial settings.

Why Choose the 3SU1050-1HB20-0AA0?

The 3SU1050-1HB20-0AA0 provides an essential layer of protection, ensuring immediate and secure machine shutdown to safeguard personnel and valuable equipment. With its IP66/IP69K ratings, this pushbutton is engineered to withstand demanding industrial conditions, from dusty workshops to high-pressure washdown areas. The turn-to-release mechanism ensures that once activated, the emergency stop remains engaged until intentionally reset, preventing accidental startups and enhancing peace of mind. Its ergonomic and compact design allows for seamless integration and user-friendliness.

Availability & Shipping

  • In stock: 3SU1050-1HB20-0AA0 ready for immediate dispatch from our Florida warehouse.
  • Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
  • Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
  • Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
  • Buy with confidence: Every 3SU1050-1HB20-0AA0 ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Siemens

Its primary function is to provide an immediate and secure emergency stop for machinery and industrial systems, ensuring operator safety and preventing damage to equipment.

Machine down? We ship parts the same day.

New, surplus, and refurbished Siemens inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.

CUSTOMER REVIEWS

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PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.

Product Condition & Firmware

All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.

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