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Siemens 3UG4512-2BR20

Name: 3UG4512-2BR20
Brand: Siemens
SKU: 3UG4512-2BR20
Price: 72.4 GBP
Availability: InStock

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Marvo Stock ID MV-7VY6

HS Code 85364900

SKU 3UG4512-2BR20

Condition Used

Warranty 12 months

Weight (kg) 1.00

Length (mm) 320.00

Width (mm) 250.00

Height (mm) 250.00

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Specification & Description

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Specification & Description

Specification	Description
Part Number	3UG4512-2BR20
Alternative Part Number	3UG45122BR20
Manufacturer	Siemens
Product Type	DIN Rail Phase Monitoring Relay
Supply Voltage Range	160 to 690 V AC at 50/60 Hz
Number of Phases	3 Phase
Output Contacts	2 change-over contacts
Connection Type	Spring-loaded terminals
Mounting Position	Any
Mounting Type	Snap-on mounting
Width	22.5 mm
Height	94 mm
Depth	91 mm
Operating Temperature Range	-25 to +60 °C during operation
Storage Temperature Range	-40 to +85 °C
Installation Altitude	Up to 2000 m above sea level
Protection Class	IP20
Electromagnetic Compatibility	IEC 60947-1 / IEC 61000-6-2 / IEC 61000-6-4
Vibration Resistance	1 to 6 Hz: 15 mm, 6 to 500 Hz: 2g
Shock Resistance	Sinusoidal half-wave 15g / 11 ms
Insulation Voltage	690 V for overvoltage category III with degree of pollution 3
Degree of Pollution	3
Product Functions	Phase sequence recognition, phase disturbance recognition, self-reset
Mechanical Operating Cycles	Typical 10,000,000
Electrical Operating Cycles	At AC-15 / at 230 V / typical 100,000
Continuous Current	5 A thermal current of the contact-affected switching element / maximum
Galvanic Isolation	Between input and output, between the outputs, between the voltage supply and other circuits

The Siemens 3UG4512-2BR20 is a sophisticated phase monitoring relay designed for seamless integration into industrial control systems. This DIN rail-mounted device ensures the reliability and stability of three-phase electrical networks by actively monitoring phase sequences and failures. Engineered to operate within a broad voltage range of 160 to 690 V AC at both 50 and 60 Hz, it is versatile enough to suit a variety of global electrical standards.

The unit features two change-over contacts, providing flexibility in signalling and control circuitry. Its spring-loaded connection system simplifies installation and maintenance, making it a user-friendly option for professionals. The 3UG4512-2BR20 boasts a compact design with a width of just 22.5 mm, allowing for efficient use of control panel space.

With an insulation voltage rated at 690 V for overvoltage category III and a degree of pollution 3, this monitoring relay is built to withstand challenging industrial environments. It also offers resistance to shock and vibration in accordance with IEC standards, ensuring robust performance and a long service life.

The LED display provides clear and immediate status indication, while the auto-reset function ensures the device is ready to operate without manual intervention after a fault condition has been cleared. The 3UG4512-2BR20 is an essential component for safeguarding electrical equipment from phase-related issues, thus contributing to the overall uptime and efficiency of your 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.

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.

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.

No-Risk Returns, Guaranteed: Return your parts anytime for a full refund. Our hassle-free return policy ensures you’re never stuck with something you don’t need.

Clear Pricing with No Hidden Fees: What you see is what you pay, transparent pricing with no extra costs, ever. Rest assured, all taxes and fees are already included in your final price.

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 the detection of phase failures and phase sequence in three-phase electrical systems. It ensures that the phases are present and correctly ordered, which is crucial for the protection of three-phase motors and other equipment.

Can this relay be mounted in any position?

Yes, the relay is designed with a flexible mounting position, allowing it to be installed in any orientation that suits the application.

What type of connections does this relay support?

The relay features spring-loaded terminals, which provide a secure and maintenance-free connection for solid or stranded conductors.

Is there a need to maintain a certain distance to earthed parts during installation?

No, there is no specific distance to be maintained to earthed parts when installing this relay, as per the product specifications.

What is the operating temperature range for this relay?

The relay can operate within an ambient temperature range of -25 to +60 degrees Celsius, making it suitable for a variety of industrial environments.

Does this relay have LED indicators?

Yes, the relay is equipped with LED indicators for easy monitoring of its status and diagnostics.

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, ensuring adequate insulation for safety and reliability.

How does this relay handle electromagnetic compatibility?

The relay is designed to comply with EMC standards, including IEC 60947-1, IEC 61000-6-2, and IEC 61000-6-4, ensuring minimal electromagnetic interference with other devices.

What is the maximum installation altitude for this relay?

The relay can be installed at altitudes up to 2,000 meters above sea level without derating.

What certifications does this relay have?

The relay comes with general product approvals and EMC declarations of conformity, which attest to its compliance with industry standards and regulations.

Part conditions explained

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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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