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Siemens 3SU1801-0NA00-2AC2
by Siemens
Read verified buyer reviews ↓OverviewThe Siemens 3SU1801-0NA00-2AC2 SIRIUS ACT Emergency Stop Pushbutton is meticulously crafted to deliver superior safety across diverse industrial operational settings. This robust safety component is indispensable for instantly and dependably bringing machinery to a halt during critical events. A distinguished member of the SIRIUS ACT family, it showcases a highly visible 40 mm red mushroom-style actuator, engineered for immediate recognition and swift activation. Its innovative unlatch-by-rotation feature guarantees that once engaged, the pushbutton remains in the 'stop' state until intentionally reset, thereby preventing unintentional restarts and bolstering overall operational security. Housed within a resilient yellow plastic casing, complete with a protective collar, this device is constructed to endure harsh industrial conditions while offering premier defense against accidental activation. Its intelligent engineering emphasizes both operator protection and ease of maintenance, making it an essential asset for any facility committed to stringent safety requirements.Key Features 40 mm Red Mushroom Actuator: Eminently visible and readily accessible for rapid emergency response. Rotate-to-Unlatch Mechanism: Guarantees a locked state and necessitates a deliberate action for resetting, preventing unintended equipment restarts. Durable Yellow Plastic Enclosure with Protective Collar: Offers substantial protection against impacts and accidental engagement, suitable for demanding industrial atmospheres. Single Normally Closed (NC) Contact: Ensures a reliable interruption of the control circuit upon activation, meeting safety regulations. Screw Terminal Connections: Enables quick, secure, and uncomplicated wiring for efficient setup. IP65 Protection Rating: Provides comprehensive safeguarding against dust penetration and low-pressure water streams, ideal for challenging industrial environments. Versatile Floor Mounting with M20 Openings: Designed for flexible installation with convenient wire entry points on both the top and bottom. Technical Specifications Product Type: Emergency Stop Pushbutton Part Number: 3SU1801-0NA00-2AC2 Brand: Siemens Series: SIRIUS ACT Actuator Type: Mushroom, Rotate-to-Unlatch Actuator Diameter: 40 mm Actuator Color: Red Enclosure Material: Plastic Enclosure Color: Yellow Contact Configuration: 1 Normally Closed (NC) Terminal Type: Screw Terminals Mounting Type: Floor Mounting Cable Entry: 1x M20 opening on top, 1x M20 opening on bottom Protection Rating: IP65 Compliance: Adheres to pertinent international safety standards for emergency stop mechanisms. Applications Industrial Machinery Safety: Crucial for quickly powering down various types of manufacturing and processing equipment to safeguard personnel. Automation and Control Systems: Seamlessly integrates into intricate automation setups, serving as an essential safety override. Conveyor Belt Systems: Provides immediate halting capabilities for conveyor lines, preventing accidents and material damage. Assembly Lines: Indispensable for emergency stops on assembly lines, protecting workers and averting product defects. Material Handling Equipment: Ensures rapid shutdown of forklifts, cranes, and other handling machinery in hazardous scenarios. Robotics Applications: A vital safety component for instantly disengaging robotic systems to prevent injury or equipment harm. Why ChooseThis model offers uncompromising safety with its highly visible actuator and dependable rotate-to-unlatch feature, significantly boosting workplace security through reliable emergency stops. Engineered with premium materials and an IP65-rated housing, this pushbutton exhibits exceptional durability, designed to withstand severe industrial conditions and deliver extended performance. Its straightforward screw terminals and adaptable M20 cable entries facilitate effortless installation and integration, minimizing downtime. Furthermore, its adherence to global safety standards ensures broad applicability and trustworthiness.Order NowEnhance your industrial safety protocols with the Siemens 3SU1801-0NA00-2AC2 Emergency Stop Pushbutton. Contact Palm Parts Solution today to secure this essential safety device and bolster your operational security.FAQQ: What is the main purpose of the Siemens 3SU1801-0NA00-2AC2 Emergency Stop Pushbutton?A: The primary purpose is to provide a rapid and dependable means of halting machinery operations during critical safety situations in industrial environments.Q: How does the rotate-to-unlatch mechanism work?A: Once activated, the pushbutton latches in the 'stop' position. To reset it and allow machinery to restart, the actuator must be deliberately rotated, preventing accidental restarts.Q: What does the IP65 rating signify for this product?A: The IP65 rating indicates that the device offers full protection against dust ingress and is protected against low-pressure water jets from any direction, making it suitable for harsh industrial settings.Q: Can this emergency stop pushbutton be used in a variety of industrial applications?A: Yes, its robust design and adherence to safety standards make it suitable for a wide range of applications, including industrial machinery, automation systems, conveyor belts, assembly lines, material handling, and robotics.
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Siemens 3SU1801-0NA00-2AC2
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:
- Exact replacement — same Siemens catalog number, new or refurbished, tested and warrantied
- Form-fit-function equivalent — alternate revision or build that drops in without code changes
- 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
- Product Type: Emergency Stop Pushbutton
- Part Number: 3SU1801-0NA00-2AC2
- Brand: Siemens
- Series: SIRIUS ACT
- Actuator Type: Mushroom, Rotate-to-Unlatch
- Actuator Diameter: 40 mm
- Actuator Color: Red
- Enclosure Material: Plastic
- Enclosure Color: Yellow
- Contact Configuration: 1 Normally Closed (NC)
- Terminal Type: Screw Terminals
- Mounting Type: Floor Mounting
- Cable Entry: 1x M20 opening on top, 1x M20 opening on bottom
- Protection Rating: IP65
- Compliance: Adheres to pertinent international safety standards for emergency stop mechanisms.
Applications
- Industrial Machinery Safety: Crucial for quickly powering down various types of manufacturing and processing equipment to safeguard personnel.
- Automation and Control Systems: Seamlessly integrates into intricate automation setups, serving as an essential safety override.
- Conveyor Belt Systems: Provides immediate halting capabilities for conveyor lines, preventing accidents and material damage.
- Assembly Lines: Indispensable for emergency stops on assembly lines, protecting workers and averting product defects.
- Material Handling Equipment: Ensures rapid shutdown of forklifts, cranes, and other handling machinery in hazardous scenarios.
- Robotics Applications: A vital safety component for instantly disengaging robotic systems to prevent injury or equipment harm.
Why Choose the 3SU1801-0NA00-2AC2?
This model offers uncompromising safety with its highly visible actuator and dependable rotate-to-unlatch feature, significantly boosting workplace security through reliable emergency stops. Engineered with premium materials and an IP65-rated housing, this pushbutton exhibits exceptional durability, designed to withstand severe industrial conditions and deliver extended performance. Its straightforward screw terminals and adaptable M20 cable entries facilitate effortless installation and integration, minimizing downtime. Furthermore, its adherence to global safety standards ensures broad applicability and trustworthiness.
Availability & Shipping
- ▸In stock: 3SU1801-0NA00-2AC2 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 3SU1801-0NA00-2AC2 ships with a 1-Year PALM Parts warranty and a 30-day return window.
Frequently Asked Questions — Siemens
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.
Related Siemens resources
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Independent Supplier Notice
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.