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Specification & Description
| Specification | Description |
|---|---|
| Part Number | LR2K0307 |
| Manufacturer | Schneider |
| Product Type | Thermal Overload Relay |
| Relay Application | Motor Protection |
| Product Compatibility | LC1K, LP1K, LP4K, LC7K |
| Network Type | AC/DC |
| Thermal Overload Class | Class 10A conforming to IEC 60947-4-1 |
| Thermal Protection Adjustment Range | 1.2…1.8 A |
| Rated Insulation Voltage (Ui) | Power circuit: 690 V conforming to BS 4941, IEC 60947, 750 V conforming to VDE 0110 group C |
| Network Frequency | <= 400 Hz |
| Mounting Support | Under contactor, Plate with specific accessories, Rail with specific accessories |
| Auxiliary Contact Composition | 1 NO + 1 NC |
| Conventional Free Air Thermal Current (Ith) | 6 A for signalling circuit |
| Rated Operational Voltage (Ue) | <= 690 V for power circuit, 690 V AC AC-15 for signalling circuit, 250 V DC DC-13 for signalling circuit |
| Associated Fuse Rating | 6 A gG for signalling circuit conforming to VDE 0660, IEC 60947 |
| Rated Impulse Withstand Voltage (Uimp) | 6 kV |
| Power Dissipation Per Pole | 2 W |
| Phase Failure Sensitivity | Yes, conforming to IEC 60947-4-1 |
| Local Signalling | Trip indicator (yellow) |
| Control Type | Red push-button: trip test function, Blue push-button: stop and manual reset, Selector switch: manual or automatic reset |
| Connections - Terminals | Screw clamp terminals for cables 1.5…4 mm² solid and flexible, with and without cable end |
| Tightening Torque | 1.3 N.m - on screw clamp terminals with screwdriver Philips No 2, flat Ø 6 mm |
| Dimensions (Height x Width x Depth) | 58 mm x 45 mm x 65 mm |
| Product Weight | 0.145 kg |
| Standards | IEC 60947, NF C 63-650, VDE 0660, BS 4941 |
| Product Certifications | UL, CSA, UKCA |
| Protective Treatment | TC conforming to IEC 60068, TC conforming to DIN 50016 |
| IP Degree of Protection | IP2X conforming to IEC 60529 |
| Ambient Air Temperature for Operation | -20…55 °C without derating, -30…60 °C with derating |
| Ambient Air Temperature for Storage | -40…70 °C |
| Operating Altitude | 2000 m without derating |
| Fire Resistance | 850 °C conforming to IEC 60695-2-1 |
| Flame Retardance | V1 conforming to UL 94, Requirement 2 conforming to NF F 16-101, Requirement 2 conforming to NF F 16-102 |
| Mechanical Robustness | Shocks: 10 Gn for 11 ms, Vibrations: 2 Gn, 5...300 Hz, for both NO and NC contacts conforming to IEC 60068 |
| Sustainable Offer Status | Green Premium product |
| REACh Regulation | REACh Declaration, free of SVHC |
| EU RoHS Directive | Compliant |
| Mercury Free | Yes |
| China RoHS Regulation | China RoHS Declaration |
| Environmental Disclosure | Product Environmental Profile |
| End Of Life Information | Must be disposed on European Union markets following specific waste collection |
The Schneider LR2K0307 is a high-quality thermal overload relay designed to provide efficient motor protection. This compact device is part of the TeSys K range and is engineered to safeguard motors from overloads, ensuring reliable operation and longevity of your equipment. With a differential thermal overload relay mechanism, it offers a thermal protection adjustment range of 1.2 to 1.8 A, suitable for various applications.
The LR2K0307 is compatible with a range of TeSys contactors, including the LC1K, LP1K, LP4K, and LC7K series, making it a versatile choice for integration into existing systems. It operates effectively within a network type of AC or DC and conforms to the Class 10A tripping class as per IEC 60947-4-1 standards, providing a quick response to overload conditions.
Mounting is made simple with options for under contactor, plate, or rail with specific accessories, allowing for flexible installation. The auxiliary contact composition of 1 NO + 1 NC ensures that it can be integrated into control circuits for enhanced functionality.
The LR2K0307 is designed to withstand challenging industrial environments, with an IP2X degree of protection conforming to IEC 60529 and an ambient operating temperature range of -20 to 55 °C without derating, ensuring consistent performance even in demanding conditions.
This overload relay also features local signalling with a trip indicator (yellow) for easy status monitoring and a control type that includes a red push-button for trip test function, a blue push-button for stop and manual reset, and a selector switch for manual or automatic reset.
With its robust construction, reliable protection features, and compliance with international standards, the Schneider LR2K0307 thermal overload relay is an essential component for motor control applications seeking to enhance operational efficiency and protect against electrical overload risks.
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Frequently Asked Questions
What is the voltage rating for this overload relay?
The overload relay is rated for ≤690 V ac, making it suitable for a wide range of industrial applications.
Can this overload relay be mounted on a DIN rail?
Yes, it is designed for DIN Rail mounting, which allows for easy installation and removal in control cabinets.
What type of terminals does this overload relay have for wiring?
It features screw clamp terminals, which provide a secure and reliable connection for both solid and flexible wires.
What are the dimensions of this overload relay?
The dimensions are 45 mm in width, 65 mm in depth, and 58 mm in height, making it compact enough for use in space-constrained environments.
What is the thermal protection adjustment range of this relay?
The thermal protection adjustment range for this relay is 1.2 to 1.8 A.
What is the IP degree of protection for this overload relay?
This overload relay has an IP degree of protection of IP2X, providing protection against solid objects larger than 12.5 mm.
What is the ambient operating temperature range for this relay?
The ambient operating temperature range is from -20°C to 55°C without derating, ensuring reliable operation in various environmental conditions.
Does this overload relay have a phase failure sensitivity feature?
Yes, it includes phase failure sensitivity in accordance with IEC 60947-4-1, enhancing motor protection.
What is the conventional free air thermal current rating?
The conventional free air thermal current rating is 6 A for the signalling circuit.
How is the local signalling for trip indication managed?
Local signalling is managed through a trip indicator, which is a yellow indicator that provides visual confirmation of a trip event.
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