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Siemens 3RH1131-1BB40
by Siemens
Read verified buyer reviews ↓OverviewThe Siemens 3RH1131-1BB40 SIRIUS industrial control relay is a high-performance solution for demanding automation environments. Crafted for precision and dependability, this relay expertly manages auxiliary and control circuits. It incorporates four normally open (4NO) contacts and operates on a 24V DC coil voltage, ensuring flawless signal transmission and superior circuit management in diverse operational settings. Its robust and compact construction makes it a vital component for a wide range of high-performance applications, including intricate switchgear, essential PLC interfaces, and advanced industrial control panels. The 3RH1131-1BB40 seamlessly integrates into existing systems, underscoring Siemens' dedication to innovation and excellence in industrial control technology.Key Features Reliable 4 Normally Open (4NO) Contacts: Delivers consistent and trustworthy switching for critical control circuits, ensuring continuous operation. Optimized 24V DC Coil Voltage: Guarantees stable and efficient performance across various automation systems, minimizing power usage and maximizing effectiveness. Space-Saving & Modular Design: Allows for easy integration into crowded control cabinets, optimizing panel space and simplifying system layouts. Extended Electrical & Mechanical Life: Engineered for exceptional durability, significantly reducing maintenance needs and overall ownership cost in industrial environments. Simplified DIN Rail Mounting: Ensures quick, secure, and straightforward installation, allowing for rapid deployment and easy modifications to control setups. High Compliance Standards: Adheres to rigorous IEC and international industrial safety regulations, ensuring secure and dependable operation in all uses. Vibration and Shock Resistant: Constructed to endure harsh industrial conditions, guaranteeing uninterrupted performance and reliability. Technical Specifications Product Type: SIRIUS Industrial Control Relay Part Number: 3RH1131-1BB40 Coil Voltage: 24V DC Contacts: 4 Normally Open (4NO) Mounting Type: DIN Rail Application: Automation, Motor Control, PLC Integration, Signal Transmission Compliance: Meets IEC and relevant Industrial Safety Standards Operating Temperature: -25°C to +60°C Dimensions (W x H x D): Compact and engineered for space efficiency Applications Advanced Automation Systems: Orchestrates precise signal transmission and control between Programmable Logic Controllers (PLCs) and various actuators, enhancing system responsiveness. Critical Switchgear & Control Panels: Ensures the dependable operation of complex circuits within industrial environments, safeguarding equipment and processes. Robust Motor & Machine Control: Supports essential auxiliary switching functions in motor circuits, contributing to the efficient and secure operation of industrial machinery. PLC Integration & Interface: Serves as an ideal interface for PLCs, enabling seamless communication and control within broader automation architectures. Safety Circuit Applications: Can be integrated into safety circuits where reliable switching of non-safety critical signals is a requirement. Building Management Systems: Provides reliable control for various building automation functions, from lighting to HVAC systems. Why ChooseExperience Siemens' renowned engineering and manufacturing excellence, ensuring a product that performs consistently and reliably for years. The 3RH1131-1BB40’s robust design and premium components significantly reduce downtime risks and maintain operational continuity. Its compact form factor and energy-efficient 24V DC coil make it an ideal choice for modern industrial setups where space and power consumption are critical. From basic auxiliary switching to complex PLC interfacing, this relay's adaptability makes it a superior option.Order NowOptimize your industrial operations with the Siemens 3RH1131-1BB40 SIRIUS Industrial Control Relay. Contact us today to place your order or request more information about this essential automation component.FAQWhat is the primary function of the Siemens 3RH1131-1BB40 relay?This industrial control relay is designed to manage auxiliary and control circuits, ensuring precise signal transmission and circuit control in industrial automation systems.What is the coil voltage required for this relay?The Siemens 3RH1131-1BB40 operates on a 24V DC coil voltage.How many contacts does this relay have?It features four normally open (4NO) contacts, providing reliable switching for critical control circuits.What type of mounting does this relay use?It is designed for simplified DIN rail mounting, allowing for quick and secure installation.In what applications is this relay typically used?This relay is commonly used in advanced automation systems, critical switchgear, motor and machine control, PLC integration, safety circuit applications, and building management systems.
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Siemens 3RH1131-1BB40
Overview
This is a genuine Siemens component from the SIRIUS Contactors 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 SIRIUS Contactors 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 SIRIUS Contactors family
Contact our engineering team if you need help choosing between these tracks.
Technical Specifications
- Product Type: SIRIUS Industrial Control Relay
- Part Number: 3RH1131-1BB40
- Coil Voltage: 24V DC
- Contacts: 4 Normally Open (4NO)
- Mounting Type: DIN Rail
- Application: Automation, Motor Control, PLC Integration, Signal Transmission
- Compliance: Meets IEC and relevant Industrial Safety Standards
- Operating Temperature: -25°C to +60°C
- Dimensions (W x H x D): Compact and engineered for space efficiency
Applications
- Advanced Automation Systems: Orchestrates precise signal transmission and control between Programmable Logic Controllers (PLCs) and various actuators, enhancing system responsiveness.
- Critical Switchgear & Control Panels: Ensures the dependable operation of complex circuits within industrial environments, safeguarding equipment and processes.
- Robust Motor & Machine Control: Supports essential auxiliary switching functions in motor circuits, contributing to the efficient and secure operation of industrial machinery.
- PLC Integration & Interface: Serves as an ideal interface for PLCs, enabling seamless communication and control within broader automation architectures.
- Safety Circuit Applications: Can be integrated into safety circuits where reliable switching of non-safety critical signals is a requirement.
- Building Management Systems: Provides reliable control for various building automation functions, from lighting to HVAC systems.
Why Choose the 3RH1131-1BB40?
Experience Siemens' renowned engineering and manufacturing excellence, ensuring a product that performs consistently and reliably for years. The 3RH1131-1BB40’s robust design and premium components significantly reduce downtime risks and maintain operational continuity. Its compact form factor and energy-efficient 24V DC coil make it an ideal choice for modern industrial setups where space and power consumption are critical. From basic auxiliary switching to complex PLC interfacing, this relay's adaptability makes it a superior option.
Availability & Shipping
- ▸In stock: 3RH1131-1BB40 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 3RH1131-1BB40 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.
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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.