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Marvo Part ID: MV-AX91

£64.12 (ex. VAT)


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Specification Description
Part Number IM1-22EX-R
Manufacturer Turck
Part Category Isolating Switching Amplifier
Voltage Range 20 to 250 V AC
Frequency 40 to 70 Hz
DC Voltage Range 20 to 125 V DC
Power Consumption ≤ 3 W
Typical Power Loss ≤ 0.98 W
Input Type NAMUR (EN 60947-5-6)
Input Monitoring Selectable ON/OFF mode for wire-break and short-circuit monitoring
Input Voltage 8.2 V DC
Input Current 8.2 mA
Input Resistance 1 kΩ
Output Type 2 x Relay (Normally Open)
Switching Voltage ≤ 30 V DC / ≤ 250 V AC
Switching Current ≤ 2 A
Switching Power ≤ 500 VA / 60 W
Switching Frequency ≤ 10 Hz
Galvanic Isolation 2.5 kV RMS
Ambient Temperature Range -25 to +70 °C
Storage Temperature Range -40 to +80 °C
Dimensions 104 x 18 x 110 mm
Weight 173 g
Mounting DIN rail (NS35) or mounting plate
Housing Material Polycarbonate/ABS
Electrical Connection 4 x 3-pole removable terminal blocks, screw connection
Connection Cross-Section 1 x 2.5 mm² / 2 x 1.5 mm²
Tightening Torque 0.5 Nm
Certifications ATEX, IECEx, UL, FM, TIIS
SIL Rating SIL 2 according to IEC 61508
Application Suitable for use in explosion hazardous areas and safety-related systems
Special Features Adjustable signal flow (NO/NC mode), removable terminal blocks, universal voltage supply unit

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.


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.


What countries can Marvo deliver to?

Marvo currently delivers to the United Kingdom (excluding Northern Ireland), the United States of America and Germany. If you cannot find your delivery address at checkout, this is most likely because Marvo does not currently deliver to this location. There are ongoing efforts to make Marvo accessible to a global market, keep your eyes peeled as our service expands to new locations. All orders are sold with a streamlined delivery process ensuring that you get your part, fast. Marvo is designed to offer you quick, easy and reliable access to critical components and uses well established global shipping services, including but not limited to DHL, UPS and FedEx.


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.


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.


Peace of mind with every purchase


Marvo Approved

A seal of quality that ensures each part is fully inspected, every time. Purchase with confidence thanks to Marvo Approved.


Full warranty

All parts are covered by a comprehensive warranty. If something goes wrong, I’ll put it right.


Priority delivery

Advanced tracking and a streamlined delivery process ensure that you get your part, fast.


Committed to you

Engineered to ensure that you always have a quick, easy and reliable place to source automation and control components.

IM1-22EX-R Product Description

The Turck IM1-22EX-R is a high-performance isolating switching amplifier designed to meet the rigorous demands of industrial applications. This versatile device is engineered for functional safety in accordance with IEC 61508 standards, ensuring reliable operation in hazardous environments. It features a wide operating voltage range from 20 to 250 V AC, making it suitable for various power systems.

The IM1-22EX-R is equipped with intrinsically safe input circuits, allowing for the connection of sensors compliant with EN 60947-5-6 (NAMUR) or mechanical contacts. This two-channel amplifier offers programmable action modes for each channel, providing flexibility in configuring the device to meet specific application requirements. The output circuits include two relay contacts, each with a normally open (N.O.) configuration, ensuring robust signal transmission.

Key features of the Turck IM1-22EX-R include galvanic isolation for safe signal transmission, LED indicators for power and switching status, and the ability to monitor input circuits for wire breaks and short circuits. The device is housed in a durable polycarbonate/ABS enclosure, designed for easy DIN rail or mounting plate installation. With its comprehensive certifications, including ATEX and IECEx, the IM1-22EX-R is an ideal choice for use in explosive atmospheres and other challenging industrial settings.

Frequently Asked Questions

What is the primary function of this device?

The primary function of this device is to act as an isolating switching amplifier for functional safety according to IEC 61508.

What voltage range does this device support?

This device supports a voltage range of 20 to 250 V AC.

Is this device suitable for use in hazardous areas?

Yes, this device is suitable for use in hazardous areas and complies with ATEX specifications.

What type of outputs does this device provide?

This device provides two relay outputs.

What is the operating temperature range for this device?

The operating temperature range for this device is -25 to +60°C.

What safety standards does this device comply with?

This device complies with IEC 61508 for functional safety.

What is the Safe Failure Fraction (SFF) of this device?

The Safe Failure Fraction (SFF) of this device is 73.15%.

What is the Mean Time Between Failures (MTBF) for this device?

The Mean Time Between Failures (MTBF) for this device is approximately 272 years.

Can this device be used in both gas and dust hazardous environments?

Yes, this device is certified for use in both gas (Ex ia IIC) and dust (Ex ia IIIC) hazardous environments.

What is the maximum current output of this device?

The maximum current output of this device is 21.4 mA.