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Schneider LR2D3559

Name: LR2D3559
Brand: Schneider
SKU: LR2D3559
Price: 133.95 GBP
Availability: InStock

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£133.95 (ex. VAT)

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Marvo Stock ID MV-31PO

HS Code 85364900

SKU LR2D3559

Condition New unboxed

Warranty 12 months

Weight (kg) 0.54

Length (mm) 121.00

Width (mm) 75.00

Height (mm) 100.00

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Specification & Description

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Commonly Asked Questions

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Specification & Description

Specification	Description
Part Number	LR2D3559
Manufacturer	Schneider
Product Type	Thermal Overload Relay
Application	Motor Protection
Compatibility	LC1D80, LC1D95
Network Type	AC, DC
Thermal Overload Class	Class 20 conforming to IEC 60947-4-1
Thermal Protection Adjustment Range	48...65 A
Rated Insulation Voltage ([Ui])	690 V AC power circuit conforming to IEC 60947-4-1, 600 V AC power circuit conforming to UL
Network Frequency	0...400 Hz
Mounting Support	Plate with specific accessories, Rail with specific accessories, Under contactor
Tripping Threshold	1.14 +/- 0.06 Ir conforming to IEC 60947-4-1
Auxiliary Contact Composition	1 NO + 1 NC
Conventional Free Air Thermal Current ([Ith])	5 A for signalling circuit
Permissible Current	0.72 A at 500 V AC-15 for signalling circuit, 0.06 A at 440 V DC-13 for signalling circuit
Rated Operational Voltage ([Ue])	690 V AC 0...400 Hz
Rated Impulse Withstand Voltage ([Uimp])	6 kV
Phase Failure Sensitivity	Tripping current 130 % of Ir on two phase, the last one at 0
Control Type	Red push-button stop, Blue push-button reset
Temperature Compensation	-20...60 °C
Connections - Terminals	Screw clamp terminals for power and control circuits with various cable flexibility options
Tightening Torque	Control circuit: 1.7 N.m, Power circuit: 9 N.m
Dimensions (Height x Width x Depth)	100 mm x 75 mm x 121 mm
Product Weight	0.535 kg

The Schneider LR2D3559 Thermal Overload Relay is a robust and reliable component designed to offer efficient motor protection. This three-pole device is engineered to safeguard motors from potential damage due to overloads by interrupting the electrical supply when excessive current is detected. It features a 1NO + 1NC contact composition and is suitable for use with a wide range of motor applications.

With a thermal protection adjustment range of 48 to 65 A, the LR2D3559 ensures precise protection for motors within this current range. It is compatible with AC and DC networks and can handle a rated insulation voltage of up to 690 V ac, making it versatile for various industrial settings.

The relay is equipped with a tripping threshold of 1.14 +/- 0.06 Ir in accordance with IEC 60947-4-1 standards, ensuring accurate and consistent performance. The device also includes a phase failure sensitivity feature, which triggers the relay if there is an imbalance in the current across the phases.

Mounting the LR2D3559 is straightforward, with options for plate, rail, or under-contactor installation, complemented by specific accessories for each method. The relay's control type includes a red push-button for stop and a blue push-button for reset, providing clear and intuitive manual control.

Constructed to withstand challenging environments, the LR2D3559 operates within an ambient air temperature range of -20 to 60 °C without derating, and it is rated IP20 for protection against solid objects larger than 12.5 mm. Its robust design is also evident in its vibration and shock resistance, ensuring durability and a long service life.

The Schneider LR2D3559 Thermal Overload Relay is a Green Premium product, reflecting Schneider Electric's commitment to sustainable development and compliance with environmental regulations. This component is an essential part of motor control solutions, offering both protection and peace of mind in a wide array of industrial applications.

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 function of a thermal overload relay?

A thermal overload relay is designed to protect electric motors from overheating, caused by excessive current draw, prolonged motor stall, or a loss of phase. It works by measuring the heat generated by the current and tripping the circuit when the temperature exceeds a preset limit, thus preventing potential damage to the motor.

How do I adjust the thermal protection range on this relay?

The thermal protection range on the relay can be adjusted by turning the dial located on the front of the unit. This allows you to set the correct current range to match the motor's requirements, ensuring reliable protection against overload conditions.

Can this relay be used with both AC and DC power circuits?

Yes, the relay is compatible with both AC and DC power circuits, making it versatile for use in various applications and network types.

What does the 1NO + 1NC auxiliary contact composition mean?

The 1NO + 1NC auxiliary contact composition means that the relay includes one Normally Open (NO) and one Normally Closed (NC) contact. These contacts can be used for signaling and control purposes, such as indicating the status of the relay or controlling auxiliary circuits.

What is the significance of the class 20 designation for this relay?

The class 20 designation refers to the tripping characteristic of the thermal overload relay. It indicates that the relay will trip or activate within a time frame that is standard for class 20 relays when the current reaches 20% above the relay's rated current.

How does phase failure sensitivity work in this relay?

Phase failure sensitivity in the relay ensures protection against phase loss, which can be harmful to motors. If one of the phases fails or the current drops to a certain level, the relay will detect the imbalance and disconnect the motor to prevent damage.

What is the temperature compensation feature on this relay?

The temperature compensation feature allows the relay to maintain consistent protection performance over a specified temperature range. This means that the relay will not trip unnecessarily due to ambient temperature changes, ensuring reliable motor protection.

How do I know if the relay has tripped due to an overload?

The relay is equipped with a red stop push-button and a blue reset push-button. If the relay has tripped due to an overload, the red button will pop out, indicating that the relay has activated and the circuit is open. To reset the relay, simply press the blue button once the overload condition has been cleared.

What mounting supports are available for this relay?

The relay can be mounted using a plate with specific accessories, a rail with specific accessories, or directly under a contactor. This provides flexibility for installation in various types of control panels and motor starter configurations.

What should I consider when selecting a fuse for use with this relay?

When selecting a fuse to use with the relay, ensure that the fuse rating is compatible with the signalling circuit requirements. The relay's associated fuse rating is typically 4A gG for the signalling circuit, which should be taken into account when choosing the appropriate fuse.

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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