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Siemens 3TK2825-1BB40
by Siemens
Read verified buyer reviews ↓OverviewThe Siemens SIRIUS 3TK2825-1BB40 is an advanced safety relay designed to protect personnel and equipment within industrial settings. This essential component delivers dependable functional safety, offering reliable control and monitoring for critical safety circuits. Operating on a 24V DC power supply, the 3TK2825-1BB40 features a versatile contact configuration of three normally open (NO) and one normally closed (NC) contact. This setup enables flexible integration into various safety applications, including emergency stop systems, safety gate supervision, and light curtain integration. Its compact build allows for seamless installation into existing control panels, making it an invaluable asset for modern automation systems where both space efficiency and reliability are paramount.Key Features Advanced Industrial Safety Compliance: Engineered to meet international safety requirements, ensuring maximum operator protection and efficient machine shutdown during hazardous conditions. Flexible 3NO + 1NC Contact Configuration: Provides versatile and dependable switching capabilities for precise control and monitoring within complex safety circuits. Optimized 24V DC Operation: Compatible with industrial control voltages, allowing for simple integration into most existing setups without additional power conversion. Compact and Modular DIN Rail Design: Designed for space-saving installation, ensuring easy mounting and efficient use of control panel space. Exceptional Reliability and Durability: Constructed with high-quality components to ensure long-term, stable performance in challenging industrial environments. User-Friendly Integration: Simplified wiring and clear labeling facilitate quick and error-free installation, reducing downtime and streamlining setup. Comprehensive Monitoring Capabilities: Offers continuous feedback on safety circuit status, enhancing system transparency and diagnostic efficiency. Technical Specifications Product Type: SIRIUS Safety Relay Part Number: 3TK2825-1BB40 Operating Voltage: 24V DC Contact Configuration: 3 Normally Open (NO) + 1 Normally Closed (NC) Mounting Type: DIN Rail Compliance: Meets international safety and automation standards (e.g., IEC 60947-5-1, EN ISO 13849-1) Applications Emergency Stop System Monitoring: Essential for safe and immediate machinery shutdown in response to emergency stop activations, preventing accidents. Safety Gate and Door Control: Provides secure monitoring of protective guards and doors, ensuring machinery cannot operate if guards are open. Light Curtain and Area Scanner Integration: Integrates with optical safety devices to detect personnel presence in hazardous zones, initiating safe machine states. Two-Hand Control Applications: Crucial in applications requiring simultaneous activation from two distinct points, enhancing operator safety. Hydraulic and Pneumatic Press Safety: Guarantees safe operation and controlled shutdown of presses, minimizing risks. Conveyor Belt Safety: Monitors safety pull cords and emergency stop buttons along conveyor systems, protecting workers from entrapment or injury. Why Choose This Model?The Siemens 3TK2825-1BB40 is backed by Siemens' engineering excellence, delivering a robust and dependable safety solution that meets global safety standards, providing peace of mind. Its versatile 3NO + 1NC contact configuration makes it suitable for a wide array of applications.Order NowEnsure the safety of your operations. Contact Palm Parts Solution today to order the Siemens 3TK2825-1BB40 safety relay.FAQWhat is the primary function of the Siemens 3TK2825-1BB40?The Siemens 3TK2825-1BB40 is a high-performance safety relay designed to monitor and control safety circuits in industrial environments, ensuring personnel and machinery protection by facilitating safe shutdowns.What is the contact configuration of this safety relay?This safety relay features a versatile contact configuration of three normally open (3 NO) and one normally closed (1 NC) contacts, allowing for flexible integration into various safety applications.What power supply does the 3TK2825-1BB40 require?The Siemens 3TK2825-1BB40 operates on a 24V DC power supply, making it compatible with standard industrial control voltages.Is the 3TK2825-1BB40 easy to install?Yes, its compact and modular DIN rail design, along with user-friendly wiring and clear labeling, ensures straightforward and error-free installation in control panels.
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Siemens 3TK2825-1BB40
Overview
This is a genuine Siemens component. 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
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
Contact our engineering team if you need help choosing between these tracks.
Technical Specifications
- Product Type: SIRIUS Safety Relay
- Part Number: 3TK2825-1BB40
- Operating Voltage: 24V DC
- Contact Configuration: 3 Normally Open (NO) + 1 Normally Closed (NC)
- Mounting Type: DIN Rail
- Compliance: Meets international safety and automation standards (e.g., IEC 60947-5-1, EN ISO 13849-1)
Applications
- Emergency Stop System Monitoring: Essential for safe and immediate machinery shutdown in response to emergency stop activations, preventing accidents.
- Safety Gate and Door Control: Provides secure monitoring of protective guards and doors, ensuring machinery cannot operate if guards are open.
- Light Curtain and Area Scanner Integration: Integrates with optical safety devices to detect personnel presence in hazardous zones, initiating safe machine states.
- Two-Hand Control Applications: Crucial in applications requiring simultaneous activation from two distinct points, enhancing operator safety.
- Hydraulic and Pneumatic Press Safety: Guarantees safe operation and controlled shutdown of presses, minimizing risks.
- Conveyor Belt Safety: Monitors safety pull cords and emergency stop buttons along conveyor systems, protecting workers from entrapment or injury.
Why Choose the 3TK2825-1BB40?
The Siemens 3TK2825-1BB40 is backed by Siemens' engineering excellence, delivering a robust and dependable safety solution that meets global safety standards, providing peace of mind. Its versatile 3NO + 1NC contact configuration makes it suitable for a wide array of applications.
Availability & Shipping
- ▸In stock: 3TK2825-1BB40 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 3TK2825-1BB40 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.