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Siemens 3TK2824-2AL20

Name: 3TK2824-2AL20
Brand: Siemens
SKU: 3TK2824-2AL20
Price: 144.12 GBP
Availability: InStock

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£144.12 (ex. VAT)

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Marvo Stock ID MV-7J71

HS Code 85364190

SKU 3TK2824-2AL20

Condition Used

Warranty 12 months

Weight (kg) 0.20

Length (mm) 120.00

Width (mm) 22.50

Height (mm) 120.00

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Specification & Description

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Commonly Asked Questions

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Customer Reviews

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Specification & Description

Specification	Description
Part Number	3TK2824-2AL20
Alternative Part Number	3TK28242AL20
Manufacturer	Siemens
Product Type	Safety Relay
Supply Voltage	AC 230V
Mounting Type	Screw and snap-on mounting
Terminal Type	Spring-loaded terminals
Width	22.5 mm
Height	120 mm
Depth	120 mm
Product Functions	Protective door monitoring, automatic start, emergency stop function, position switch monitoring
Safety Integrity Level (SIL)	SIL1
Performance Level (PL)	PL: c
Category according to ISO 13849-1	Category 2
Category according to EN 954-1	Category 3
Hardware Fault Tolerance	1
Safety Device Type	Type A
Number of Outputs	2 NO contacts (instantaneous)
Operating Temperature Range	-25 … +60 °C
Storage Temperature Range	-40 … +80 °C
Protection Class IP (Housing)	IP40
Protection Class IP (Terminal)	IP20
Insulation Voltage	Rated at 300 V
Ambient Air Pressure	90 … 106 kPa
Relative Humidity	10 … 95 %
Installation Altitude	Up to 2,000 m above sea level
Resistance to Vibration	5 ... 500 Hz: 0.075 mm
Resistance to Shock	8g / 10 ms
Impulse Voltage Resistance	Rated at 4,000 V
EMC Emitted Interference	EN 60947-5-1
Installation Environment for EMC	Suitable for Class A environments only

The Siemens 3TK2824-2AL20 is a sophisticated safety relay designed to enhance the operational security of machinery and plant equipment. This component is part of the SIRIUS safety relay range and is specifically engineered for use with emergency-stop units. It operates with a control supply voltage of AC 230V and features a compact width of 22.5mm, making it suitable for integration into various control systems without demanding excessive space.

Equipped with spring-loaded terminals, the 3TK2824-2AL20 ensures a secure and maintenance-free electrical connection, facilitating quick and reliable installation. The relay release circuits (RC) include two normally open (NO) contacts for instantaneous actions, while the mechanical contacts (MC) are not present in this model. The device supports an autostart function and is classified as a basic device within its series.

The 3TK2824-2AL20 is capable of achieving a Safety Integrity Level (SIL) of 1 and a Performance Level (PL) of C, according to the relevant standards. It is designed to operate within a wide range of ambient temperatures, from -25°C to +60°C, ensuring consistent performance in diverse working environments.

This safety relay is also characterised by its robust design, with a protection class of IP40 for the housing and IP20 for the terminals, providing finger-safe protection against electrical shock. The relay is designed to resist electrical interference as per EN 60947-5-1 and can handle impulse voltage resistance up to 4,000V.

The 3TK2824-2AL20 is suitable for a variety of safety applications, including protective door monitoring, emergency stop function, and position switch monitoring. It is not designed for light barrier, standstill, or rotation speed monitoring, ensuring that it is utilised for its intended safety functions.

In summary, the Siemens 3TK2824-2AL20 safety relay is a reliable and efficient solution for managing safety-related circuits in industrial settings, contributing to the overall safety and compliance of equipment operations.

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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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.

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.

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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Our service to you

Lightning-Fast Express Shipping: Receive your order in record time with our express shipping options, ensuring you minimize downtime and keep your projects on track.

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Rock-Solid Reliability at a Fraction of the Cost: Get pre-owned electronic parts that are fully tested for peak performance, saving you money without compromising on quality, backed by a comprehensive warranty.

Frequently Asked Questions

What is the voltage rating for this safety relay?

The safety relay is rated for AC 230V control supply voltage.

Can this safety relay be used with emergency stop circuits?

Yes, it is designed for use with EMERGENCY-STOP units and has an emergency stop function.

What type of terminals does this relay have for electrical connections?

It features spring-loaded terminals for secure and reliable electrical connections.

What is the width of the safety relay?

The width of the safety relay is 22.5mm, making it suitable for compact installation spaces.

Is this device suitable for use in residential environments?

This product is suitable for Class A environments only and may cause radio-frequency interference in residential environments, which would require the user to take appropriate measures.

What is the maximum installation altitude for this safety relay?

The maximum installation altitude for the safety relay is 2,000 meters above sea level.

What are the operating and storage temperature ranges for this relay?

The operating temperature range is -25 to +60°C, and the storage temperature range is -40 to +80°C.

Does this safety relay have a TÜV certificate?

Yes, the 3TK2824-2AL20 has a TÜV certificate, confirming its compliance with relevant safety standards.

What is the product's IP rating?

The housing of the safety relay has an IP40 rating, and the terminal has an IP20 rating.

What is the maximum number of electrical operating cycles for this relay?

The relay has a typical electrical operating cycle of 100,000.

Can this relay be mounted in any position?

Yes, the relay can be mounted in any position, providing flexibility in installation.

What is the Safety Integrity Level (SIL) of this relay?

The relay has a Safety Integrity Level (SIL) of 1 according to IEC 61508.

What type of product approvals does this relay have?

The relay has approvals from BG, SUVA, UL, CSA, and conforms to standards such as EN 60204-1, EN ISO 12100, EN 954-1, and IEC 61508.

Part conditions explained

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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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