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Specification & Description
| Specification | Description |
|---|---|
| Part Number | LR2D1308 |
| Manufacturer | Telemecanique |
| Part Description | Telemecanique, TeSys D Series, Thermal Overload Relay, 690 V ac, Checking the Wiring on the Control Circuit, 121 x 100 x 75 mm |
| Short Description | Thermal overload relay |
| Country of Origin | Not specified |
| Commodity Code | 853641 |
| Relay Application | Motor protection |
| Protection Type | GG fuse 5 A - for control circuit, GB2 circuit breaker 5 A - for control circuit, BS fuse 5 A - for control circuit |
| Network Frequency | 50/60 Hz |
| Mounting Support | Plate, with EverLink power terminal block, Rail, with EverLink power terminal block |
| Tripping Threshold | 1.14 +/-0.06 In A conforming to IEC 60947-4-1 |
| Surge Withstand | 6 kV conforming to IEC 60801-5 |
| Rated Operational Voltage | 690 V AC 50/60 Hz for power circuit conforming to IEC 60947-4-1 |
| Phase Failure Sensitivity | Tripping current I 30 % of Ir on one phase, the others at Ir conforming to IEC 60947-4-1 |
| Tightening Torque | Control circuit: 1.7 N.m on screw clamp terminals |
| Dimensions | Height: 121 mm, Width: 75 mm, Depth: 100 mm |
| Standards | IEC 60947-4-1, UL 508, EN 60947-5-1, Directive ATEX 94/9/EC, IEC 60947-5-1, EN 60947-4-1, CSA C22.2 No 14 |
| Product Certifications | GOST |
The Telemecanique LR2D1308 is a robust and reliable thermal overload relay from the renowned TeSys D Series. This high-performance part is designed to provide superior motor protection, safeguarding your equipment from potential damage caused by overheating. With an operational voltage of 690 V AC, it is suitable for a wide range of industrial applications.
The LR2D1308 features a variety of connection terminals, allowing for flexible installation options. It is designed to work with a control circuit, utilising screw clamp terminals for secure and efficient connectivity. The part is also equipped with a tripping threshold of 1.14 +/-0.06 In A, conforming to IEC 60947-4-1 standards, ensuring precise and reliable operation.
This thermal overload relay is built to withstand challenging environments. It boasts an IP2x degree of protection, conforming to VDE 0106, and can operate in ambient air temperatures ranging from -20 to 60 °C. The part also offers fire resistance up to 850 °C, conforming to IEC 60695-2-1 standards.
The LR2D1308 is not just about performance and durability. It also complies with several international standards and certifications, including IEC 60947-4-1, UL 508, EN 60947-5-1, and ATEX INERIS, among others. This ensures that the part meets the highest quality and safety standards, providing you with peace of mind in your operations.
In summary, the Telemecanique LR2D1308 thermal overload relay is a versatile and dependable part that offers superior motor protection, flexible installation options, and compliance with international standards. It is an excellent choice for businesses looking to enhance the safety and efficiency of their industrial applications.
Commonly Asked Questions
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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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Frequently Asked Questions
What is the function of a thermal overload relay?
A thermal overload relay is designed to protect electric motors from overheating, by sensing the current flowing to the motor and breaking the circuit if an overload is detected. It helps prevent damage to the motor that can be caused by excessive current or prolonged overcurrent conditions.
How does the phase failure sensitivity feature work?
The phase failure sensitivity feature of the LR2D1308 ensures that the relay will trip if there is a significant imbalance in the current among the three phases, such as when one phase drops to 30% of the rated current while the others remain at their rated current. This helps protect the motor from potential damage due to phase loss or imbalance.
Can this thermal overload relay be used with different types of circuit protection?
Yes, the LR2D1308 can be used with various types of circuit protection including BS fuses, GB2 circuit breakers, and GG fuses, all rated at 5 A for the control circuit.
What are the mounting options for this relay?
The relay can be mounted on a plate with an EverLink power terminal block or on a rail with an EverLink power terminal block, providing flexibility for different installation requirements.
What is the tripping threshold for this relay?
The tripping threshold for the LR2D1308 is set at 1.14 +/-0.06 times the rated current (In) conforming to IEC 60947-4-1 standards.
What is the operational voltage rating for this relay?
The rated operational voltage for the LR2D1308 is 690 V AC 50/60 Hz for the power circuit, conforming to IEC 60947-4-1 standards.
What are the environmental operating conditions for this relay?
The relay is designed to operate within an ambient air temperature range of -20 to 60 °C and has a fire resistance rating of 850 °C conforming to IEC 60695-2-1. It also has an IP2x degree of protection conforming to VDE 0106.
What certifications does this thermal overload relay have?
The LR2D1308 is certified by multiple international standards, including IEC, UL, CSA, and ATEX, ensuring its compliance with global industry regulations.
What is the significance of the protective treatment TH?
The protective treatment TH indicates that the LR2D1308 has undergone specific treatments to ensure durability and reliability in harsh environments, conforming to IEC 60068.
How is the connection to the control circuit made?
Connections to the control circuit are made using screw clamp terminals that can accommodate cables of 1 to 2.5 mm², with options for both flexible and solid cables, with or without cable ends.
Part conditions explained
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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.
