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Siemens 3SK1211-1BB40

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3SK1211-1BB40
3SK1211-1BB40
3SK1211-1BB40

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Marvo Stock ID MV-B4LQ
HS Code 85364900
SKU 3SK1211-1BB40
Condition Used
Warranty 12 months
Weight (kg) 1.00
Length (mm) 350.00
Width (mm) 250.00
Height (mm) 110.00
EAN 4011209913752

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Specification & Description

Specification Description
Part Number 3SK1211-1BB40
Alternative Part Number 3SK12111BB40
Manufacturer Siemens
Product Category Safety Relays
Product Designation Output Expansion
Supply Voltage 24 V DC
Connection Type Screw Terminal
Dimensions 22.5 x 121.6 x 100 mm
Protection Class IP20
Insulation Voltage Rated at 300 V
Ambient Operating Temperature -25 to +60 °C
Storage Temperature -40 to +80 °C
Installation Altitude Up to 2000 m above sea level
Vibration Resistance According to IEC 60068-2-6, 5 to 500 Hz: 0.75 mm
Shock Resistance 10g / 11 ms
Surge Voltage Resistance Rated at 4000 V
EMC Emitted Interference Compliant with IEC 60947-5-1, IEC 61000
Safety Integrity Level (SIL) SIL3 according to IEC 61508
Performance Level (PL) PL e according to EN ISO 13849-1
Category Category 4 according to EN ISO 13849-1
PFHD 0.0000000017 1/h
PFDavg 0.000001
T1 Value 20 years
Hardware Fault Tolerance According to IEC 61508: 1
Safety Device Type Type A according to IEC 61508-2
Number of Safety-related Contacts 4 NO (Normally Open) contacts for safety-related applications
Number of Signalling Contacts 1 NC (Normally Closed) contact for signalling function
Operating Frequency Maximum 360 operations/hour
Switching Capacity of NO Contacts At DC-13: 5 A at 24 V, 0.2 A at 115 V, 0.1 A at 230 V; At AC-15: 5 A at 24/115/230 V

The Siemens 3SK1211 Series Safety Relay is a vital component designed to ensure the safety and reliability of industrial automation systems. This safety relay operates with a 24 V dc supply and is engineered for screw mounting, making it a versatile choice for various applications. Its compact dimensions of 22.5 x 121.6 x 100 mm allow for efficient use of space within control panels.

Crafted to meet stringent safety standards, the 3SK1211 Series boasts an impressive array of features, including a Performance Level (PL) of 'e' according to EN ISO 13849-1 and a Safety Integrity Level (SIL) of SIL3 as per IEC 61508, indicating its capability to handle high-risk safety functions. The relay is equipped with four safety-related instantaneous NO (Normally Open) contacts, and one NC (Normally Closed) contact for signaling functions, providing flexibility in safety circuit design.

The robust design of the Siemens safety relay ensures reliable operation in a wide range of environmental conditions, with an operating temperature range of -25 to +60°C and resistance to vibrations and shocks. Its finger-safe terminals offer additional protection against electrical shock, enhancing safety during installation and maintenance.

This safety relay is an essential component for machine builders and system integrators seeking to implement or upgrade safety measures in their equipment. Its adherence to international safety standards makes it a trustworthy choice for safeguarding personnel and machinery in a variety of industrial settings.

Commonly Asked Questions

Is my order covered by a warranty?

Marvo provides a full 12-month warranty on all products, whatever the condition. For your peace of mind, all parts are ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. If you are unhappy with the part(s) you received and would like to request a return, you can do so by completing our quick and easy online form. Once we have received your Returns Request, a member of the team will be in touch to discuss this further with you. You can read more about our warranty policy here.

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What payment methods do you accept?

We accept card payments from all major credit, debit and Mastercard providers including Visa, American Express, Western Union, Paypal and bank transfers. Before you complete an order you will be prompted to input your payment details, at which point you can enter the relevant card information you wish to use for your transaction. If you are experiencing issues with your payment method then you can contact our team via email here. From there, you will be directed to the most relevant resource or person to help you complete your payment, get your order processed and ensure that your parts are on the way to your delivery address.

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Is Marvo a credible parts supplier?

Marvo is a highly credible supplier of industrial automation parts and components with dedicated hubs around the world offering industry-leading products and services. Marvo is committed to providing a quick, easy and reliable place to source your automation and control components. All purchases come as standard with a comprehensive 12-month return to base warranty meaning that, in just a few clicks, you can source critical parts more seamlessly than ever before. Click here to read an article on how Marvo is redefining convenience for automation and manufacturing professionals.

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Have steps been taken to ensure quality control?

Marvo takes pride in product quality and has put several measures in place to assure high levels of quality standards. For your peace of mind, all parts have been ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. Redefine convenience and secure priority delivery on all parts along with a comprehensive 12-month warranty. This is the smart new way to buy automation and control components.

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How do I create an account?

Creating an account is incredibly simple and takes a matter of seconds. You can create a Marvo account at any time by clicking here and following the simple steps on screen. By creating a Marvo account you can store your contact details, delivery addresses, billing addresses and more, meaning that you can enjoy game-changing convenience faster than ever before.

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Peace of mind with every purchase

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Frequently Asked Questions

What type of device is this safety relay suitable for?

The Siemens safety relay is suitable for Class B environments and can also be used in domestic environments, providing flexibility for a variety of industrial and residential applications.

What is the rated insulation voltage for this safety relay?

The rated insulation voltage for this safety relay is 300 V, ensuring it can handle the necessary power levels for safe operation.

Can this safety relay be used in areas with high levels of vibration?

Yes, this safety relay is designed with vibration resistance according to IEC 60068-2-6 standards, which means it can withstand 5 to 500 Hz at 0.75 mm.

What is the maximum operating altitude for this safety relay?

The maximum operating altitude for the safety relay is 2,000 meters above sea level, allowing it to function effectively in various installation environments.

What are the ambient temperature limits for operating this safety relay?

The safety relay can operate within an ambient temperature range of -25 to +60 °C, making it suitable for a wide range of environmental conditions.

What is the significance of the Performance Level 'e' for this safety relay?

The Performance Level 'e' indicates that the safety relay meets the highest level of safety performance as per EN ISO 13849-1 standards, which is essential for applications requiring reliable safety functions.

What is the Safety Integrity Level (SIL) rating for this safety relay?

This safety relay has a SIL3 rating according to IEC 61508, which signifies a high level of reliability and safety for critical control systems.

How many safety-related instantaneous contacts does this relay have?

The safety relay is equipped with four safety-related instantaneous contacts, providing multiple options for integrating into safety circuits.

What is the maximum switching capacity for the NO contacts of the relay outputs at 24 V?

At 24 V, the maximum switching capacity for the Normally Open (NO) contacts of the relay outputs is 5 A.

Is this safety relay finger-safe?

Yes, the safety relay is designed with finger-safe protection, minimising the risk of electrical shock during handling and operation.

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Part conditions explained

We want your buying experience to be as seamless as possible. So, here are all of the product descriptions you will see when browsing Marvo, explained a little further:

New unsealed: The product is in its original packaging, but the packaging has been opened or unsealed. It has never been used and should be in near pristine condition.

New sealed: The product is sealed in its original packaging. It has never been opened or used, ensuring that it's in an untouched state.

New unboxed: The product does not come in its original packaging, but it has never been used and is in great working condition.

Refurbished: The product has been previously used, but it has undergone a thorough refurbishment process to restore it to a like-new or functional condition. Any defects or issues have been addressed, making it suitable for reuse.

Used: The product has been previously owned and has been used. It may show signs of wear and tear but is still functional and operational. The condition may vary depending on the specific item and its usage history.

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