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Siemens 3RR2242-2FW30

Name: 3RR2242-2FW30
Brand: Siemens
SKU: 3RR2242-2FW30
Price: 156.85 GBP
Availability: InStock

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£156.85 (ex. VAT)

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Marvo Stock ID MV-7VP4

HS Code 85364900

SKU 3RR2242-2FW30

Condition Used

Warranty 12 months

Weight (kg) 1.00

Length (mm) 300.00

Width (mm) 190.00

Height (mm) 150.00

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Specification & Description

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Commonly Asked Questions

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Specification & Description

Specification	Description
Part Number	3RR2242-2FW30
Alternative Part Number	3RR22422FW30
Manufacturer	Siemens
Product Type	Monitoring Relay
Contactor Compatibility	Can be mounted to Contactor 3RT2, Size S0 standard
Current Monitoring Range	Digitally adjustable apparent/active current monitoring 4-40 A
Supply Voltage	24-240 V AC/DC
Frequency Range	20-400 Hz
Phase	3-phase
Output Contacts	1 change-over contact, 1 semiconductor output for alarm and warning
Monitoring Functions	Current overshoot and undershoot, Phase failure, Cable break, Phase sequence, Residual current, Blocking current
Fault Buffer	Warning and alarm thresholds with or without fault buffer
On Delay	0-99 s
Noise Pulse Suppression	0-30 s
Pause After Fault	0-300 min
Connection System	Spring-type connection
Protection Class	IP20
Insulation Voltage	Rated at 690 V for overvoltage category III with degree of pollution 3
Surge Voltage Resistance	Rated value 6 kV
Ambient Temperature Range	Operating: -25 to +60 °C, Storage: -40 to +80 °C
Installation Altitude	Up to 2,000 m above sea level
Mechanical Service Life	Typical 10,000,000 mechanical operating cycles
EMC	Emitted interference and immunity according to IEC 60947-1 ambience A (industrial sector)
Shock Resistance	15g / 11 ms
Vibration Resistance	10 ... 55 Hz / 0.35 mm
Dimensions (H x W x D)	109 mm x 45 mm x 92 mm

The Siemens 3RR2242-2FW30 is a sophisticated monitoring relay designed for seamless integration with 3RT2 contactors, size S0. This device is engineered to provide precise digital adjustment of apparent and active current monitoring ranging from 4 to 40A, across a frequency spectrum of 20 to 400 Hz, suitable for three-phase power systems. It operates with a supply voltage of 24-240 V AC/DC, ensuring versatility across various electrical installations.

This monitoring relay is equipped with a single change-over contact and a semiconductor output for alarm and warning signals, enhancing its functionality for industrial applications. It is adept at monitoring for a variety of electrical issues including current overshoot and undershoot, phase failure, cable break, phase sequence, residual current, and blocking current. The device also features adjustable thresholds for warning and alarm signals, with or without fault buffer, and offers ON delay settings from 0 to 99 seconds, noise pulse suppression from 0 to 30 seconds, and a pause after fault ranging from 0 to 300 minutes.

The 3RR2242-2FW30 is designed with a spring-type connection system for ease of installation and maintenance. Its compact dimensions and the ability to mount in any orientation make it a flexible choice for various setups. The relay's robust construction ensures reliable operation even in demanding industrial environments, with a mechanical service life that is indicative of its durability and longevity.

With its advanced features and reliable performance, the Siemens 3RR2242-2FW30 monitoring relay is an essential component for industrial control systems, providing critical monitoring and protection functions that help maintain the integrity and efficiency of electrical 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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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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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 purpose of this monitoring relay?

The monitoring relay is designed for current monitoring applications. It can be attached to a contactor and is used to monitor electrical parameters such as current overshoot and undershoot, phase failure, cable break, phase sequence, residual current, and blocking current.

Can this relay be used with any size of contactor?

This relay is specifically designed to be mounted to a Siemens 3RT2 contactor of size S0, ensuring compatibility and ease of integration within the system.

How is the current monitoring range adjusted on this relay?

The current monitoring range is digitally adjustable, allowing for precise settings to match the requirements of the application.

What are the power supply requirements for this relay?

The relay requires a supply voltage of 24-240 V AC/DC, making it versatile for use in various power supply environments.

Does this relay have any delay functions?

Yes, it features ON delay, noise pulse suppression, and pause after fault functions, with adjustable time settings to cater to different operational needs.

What type of connection system does the relay use?

It utilises a spring-type connection system, which provides a secure and maintenance-free electrical connection.

What are the ambient temperature limits for operating this relay?

The relay can operate within an ambient temperature range of -25 to +60 degrees Celsius, ensuring reliable performance in a variety of environmental conditions.

Is there any protection against electrical shock?

Yes, the relay is designed with finger-safe terminals to provide protection against electrical shock during installation and maintenance.

What is the insulation voltage rating for this relay?

The relay has an insulation voltage rating of 690 V for overvoltage category III with a degree of pollution 3, offering robust protection against voltage transients.

How does this relay contribute to system diagnostics?

With its monitoring capabilities and semiconductor output for alarm and warning signals, the relay aids in system diagnostics by detecting and signalling various electrical faults, thereby helping to prevent potential damage to the system.

Part conditions explained

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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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