Home > News

SIEMENS 3SB2900-0XZ K2Y SIRIUS ACT Round Illuminated Pushbutton (e.g., Green "Start" Button)

Mar. 23 , 2026

1. Product Name

SIEMENS 3SB2900-0XZ K2Y SIRIUS ACT Round Illuminated Pushbutton (e.g., Green "Start" Button)

2. Product Introduction

The SIEMENS 3SB2900-0XZ K2Y is a specific configuration of a round, illuminated pushbutton from the Siemens SIRIUS ACT (3SB) series. While not part of the motor itself, this rugged operator panel device is a fundamental component for command and control within an industrial automation system. It is frequently used on motor control center (MCC) panels or machine operator stations to provide the manual command (e.g., START or CYCLE START) that ultimately initiates the operation of a connected ‌SIEMENS MOTOR‌ drive system, offering both a tactile interface and clear visual status feedback.

3. Product Description

The SIEMENS 3SB2900-0XZ K2Y is a modular, industrial-grade operator interface device belonging to the renowned SIRIUS ACT (3SB) product line. According to Siemens' standard part numbering convention for this series, this specific model (3SB2900-0XZ K2Y) defines its exact configuration. The "3SB2900" typically identifies the device as a round, illuminated pushbutton actuator. The suffix "-0XZ K2Y" provides more precise details such as the lens/badge color (likely green, indicating "Start," "Run," or "Ready"), the inscription/legend (often a symbol or text like a "I" power symbol or "START"), the illumination voltage (e.g., 24V DC or 230V AC), and the type of contact block or lighting element.

This pushbutton serves as a critical Human-Machine Interface (HMI) component. Its primary function is to allow an operator to send a manual command to a control system (like a PLC or relay logic) by pressing the button. This command often triggers a sequence, such as closing a contactor to energize a starter, which in turn powers on a ‌SIEMENS MOTOR‌. Simultaneously, when the commanded system is active, the button's built-in LED (commonly a long-life, low-energy type) illuminates, providing immediate visual confirmation of the system's state—for instance, a steady green light confirms the motor is running as commanded. The design features a robust housing (often plastic or metal) that provides high ingress protection (IP65 or higher), making it resistant to dust and water jets, suitable for harsh industrial panels. Its modular design separates the front actuator from the rear contact blocks (e.g., normally open (NO) or normally closed (NC) contacts) and lamp modules. This allows for flexible panel design, easy replacement, and simplified wiring. By providing a reliable, unambiguous, and durable point of interaction, the SIEMENS 3SB2900-0XZ K2Y enhances both the safety and operational efficiency of machinery and processes controlled by systems that incorporate ‌SIEMENS MOTOR‌ drives.

4. Product Model

3SB2900-0XZ K2Y4AM3442-8JD40-0FA06XV1870-4UH10
3SB2900-0XZ K3Y4AM3442-8JN00-0EA06XV1870-4UH20
3SB2900-0XZ K9Y4AM3442-8MB40-0FA06XV1870-4UH30
3SB2901-2AA4AM3442-8MD40-0FA06XV1870-4UH40
3SB2901-2AB4AM3841-8BD40-0CN26XV1870-4UH60
3SB2901-2AC4AM3842-4TJ10-0FA06XV1870-4UN10
3SB2901-2AD4AM3842-4TJ10-0FC06XV1870-4UN15
3SB2901-2AF4AM3842-4TN00-0EA06XV1870-4UN20
3SB2901-2AG4AM3842-4TN00-0EA16XV1870-4UN25
3SB2901-2AL4AM3842-4TN00-0EC06XV1870-4UN30
3SB2901-2AM4AM3842-4TN00-0ED06XV1870-8AE30
3SB2901-2AN4AM3842-4TT10-0FA06XV1870-8AE50
3SB2901-2AP4AM3842-4TV00-0EA06XV1870-8AH10
3SB2901-2AQ4AM3842-5AJ10-0FA06XV1870-8AH15
3SB2901-2AR4AM3842-5AN00-0EA06XV1870-8AH20
3SB2901-2BA4AM3842-5AN00-0EA16XV1870-8AH30
3SB2901-2BE4AM3842-5AT10-0FA06XV1870-8AH50
3SB2901-2EB4AM3842-5AT10-0FA16XV1870-8AN10
3SB2901-2EC4AM3842-5AT10-0FA26XV1870-8AN15
3SB2901-2EL4AM3842-5AV00-0EA06XV1870-8AN20
3SB2901-2EM4AM3842-5CT10-0FA06XV1870-8AN30
3SB2901-2ET4AM3842-5FN00-0EA06XV1870-8AN40
3SB2901-2EW4AM3842-5FT10-0FA06XV1870-8AN50
3SB2901-2MB4AM3842-5MT10-0FA06XV1870-8GE30
3SB2901-2MC4AM3842-8DD40-0FA06XV1870-8GE50
3SB2901-2MF4AM3842-8DN00-0EA06XV1870-8GH10
3SB2901-2NA4AM3842-8ED40-0FA06XV1870-8GH15
3SB2901-2XZ K0Y4AM3842-8EN00-0EA06XV1870-8GH20
3SB2901-2XZ K1Y4AM3842-8JD40-0FA06XV1870-8GH30
3SB2901-2XZ K2Y4AM3842-8JD40-0FA16XV1870-8GH50
3SB2901-2XZ K3Y4AM3842-8JN00-0EA06XV1870-8GN10
3SB2901-2XZ K9Y4AM3842-8MB40-0FA06XV1870-8GN15
3SB2901-4AA4AM3842-8MD40-0FA06XV1871-2F
3SB2901-4AB4AM3852-2AC50-0AA06XV1871-2FU10
3SB2901-4AC4AM4041-8BD40-0CN26XV1871-2G
3SB2901-4AD4AM4042-4TJ10-0FA06XV1871-2L
3SB2901-4AE4AM4042-4TJ10-0FD06XV1871-2N
3SB2901-4AF4AM4042-4TN00-0EA06XV1871-2S
3SB2901-4AG4AM4042-4TN00-0EA16XV1871-2T
3SB2901-4AH4AM4042-4TN00-0ED06XV1871-5BH10
3SB2901-4AJ4AM4042-4TT10-0FA06XV1871-5BH20
3SB2901-4AK4AM4042-4TT10-0FC06XV1871-5BH30
3SB2901-4AL4AM4042-4TV00-0EA06XV1871-5BH50
3SB2901-4AN4AM4042-4TX00-0FA06XV1871-5BN10
3SB2901-4AQ4AM4042-5AJ10-0FA06XV1871-5BN12

5. Product Advantages

  • Robust and Long-Lasting:‌ Engineered for millions of actuations with high-quality materials and LED illumination, ensuring reliable performance and minimal maintenance in demanding industrial environments.

  • Clear and Intuitive Operation:‌ The illuminated lens (especially in standard colors like green for "go" or "run") provides unmistakable visual feedback, while the tactile feel ensures positive operator interaction, enhancing safety and reducing errors. This is crucial for confirming the status of a ‌SIEMENS MOTOR‌ or process.

  • High Flexibility and Customization:‌ As part of the modular SIRIUS ACT system, the front actuator can be combined with various rear-mounting contact blocks and lamp units, allowing panel designers to create exactly the required switching function (momentary, latching, etc.) for specific applications.

  • Easy Installation and Maintenance:‌ The push-in or screw-mounting design and the modular snap-together construction significantly speed up panel assembly and simplify replacement or reconfiguration in the field.

  • Safe and Ergonomic Design:‌ The mushroom head or flush design is easy to operate, even with gloves, and is designed to prevent accidental activation, contributing to a safer working environment.

  • Seamless System Integration:‌ Designed for perfect compatibility within Siemens' comprehensive automation ecosystem, it integrates reliably with SIRIUS contactors, relays, and PLCs, forming a cohesive and dependable control interface for systems powering ‌SIEMENS MOTOR‌s and other equipment.

6. Website Insights for www.wheat-auto.com

Homepage Link:‌ www.wheat-auto.com

Based on the provided ‌ ‌, the website ‌www.wheat-auto.com‌ is the corporate portal for ‌Changzhou Wheat Automation Technology CO., LTD‌. The homepage identifies the company as "a high-tech company engaged in electronic products" established in May 2012. It is presented as a multilingual (English, 中文, Pусский) ‌ (foreign trade independent website).‌ Key page elements include a prominent "Request a Quotation" button and standard corporate navigation links (Home, Brand, About Us, Applications, Support, Contact Us).

My Insights and Analysis:
The structure and content of the website clearly indicate its primary function is as a ‌corporate portal and B2B (Business-to-Business) lead-generation platform for international trade.‌ The most telling feature is the central "Request a Quotation" call-to-action, which is the primary intended user interaction. This, combined with the site's self-description as a "foreign trade independent website," strongly suggests the company's core business model is the ‌global distribution and supply of electronic and industrial automation components and solutions.‌ Changzhou Wheat Automation Technology Co., Ltd. likely operates as an international supplier, intermediary, or trading company. They source products (which may include components from brands like Siemens, as suggested by the "Brand" navigation) from manufacturers and supply them to a worldwide client base, including industrial end-users, system integrators, project contractors, and other distributors. The website is not designed as a detailed e-commerce catalog for direct consumer purchases but rather as a gateway to establish corporate credibility, attract potential business partners, and facilitate project inquiries and ongoing supply relationships.

7. Usage Scenarios  

This SIRIUS ACT pushbutton (3SB2900-0XZ K2Y) is a standard component found on operator panels across virtually all industries:

  • Machine Control Panels:‌ As the primary "START," "CYCLE START," or "RESET" button on the control station of injection molding machines, CNC machines, or assembly lines, where pressing it initiates a machine sequence that engages a ‌SIEMENS MOTOR‌.

  • Motor Control Centers (MCCs):‌ Mounted on the door of individual starter cubicles to provide a local "Start" or "Jog" command for a specific motor circuit.

  • Process Control Stations:‌ Used on operator panels in chemical plants, water treatment facilities, or packaging lines to manually start a process step, conveyors, or agitators driven by motors.

  • Acknowledgment and Reset Stations:‌ Acting as an illuminated "ACKNOWLEDGE" or "FAULT RESET" button to confirm alarms or clear fault conditions on equipment.

  • Test and Service Panels:‌ Providing manual control for maintenance or testing modes on complex machinery.


Copyright © Changzhou Wheat Automation Technology Co., Ltd All Rights Reserved | Sitemap |Powered by