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Specification & Description
| Specification | Description |
|---|---|
| Part Number | LR2D1307 |
| Manufacturer | Telemecanique |
| Series | LR2D |
| Type | Overload Relay |
| Application | Motor Protection |
| Operational Voltage | 690 V AC 50/60 Hz for power circuit |
| Control Circuit Voltage | Up to 690 V AC |
| Adjustable Current Range | 1.6 to 2.5 A |
| Tripping Class | Class 10A |
| Contacts Configuration | 1 Normally Open (NO), 1 Normally Closed (NC) |
| 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 |
| Phase Failure Sensitivity | Tripping current I 30% of Ir on one phase, the others at Ir conforming to IEC 60947-4-1 |
| Ambient Air Temperature | For operation -20...60 °C conforming to IEC 60947-4-1 |
| Protective Treatment | TH conforming to IEC 60068 |
| IP Degree of Protection | IP2x conforming to VDE 0106 |
| Fire Resistance | 850 °C conforming to IEC 60695-2-1 |
| Shock Resistance | 15 gn 11 ms conforming to IEC 60068-2-7 |
| Vibration Resistance | 6 gn on plate conforming to IEC 60068-2-6 |
| Dielectric Strength | 6 kV at 50 Hz conforming to IEC 60255-5 |
| Network Frequency | 50/60 Hz |
| Tightening Torque | Control circuit: 1.7 N.m - on screw clamp terminals |
| Dimensions (H x W x D) | 121 mm x 75 mm x 100 mm |
| Standards and Certifications | ATEX, INERIS, BV, CCC, CSA, DNV GL, GOST, LROS, RINA, UL, EN 60947-4-1, EN 60947-5-1, IEC 60947 |
| Product Status | Discontinued |
The Telemecanique LR2D1307 is a thermal overload relay designed to provide efficient motor protection. This component is part of the TeSys D range and is suitable for a variety of industrial applications. With a control circuit voltage of 690 V AC and a frequency of 50/60 Hz, it ensures reliable operation in demanding environments.
The LR2D1307 features a tripping threshold of 1.14 +/-0.06 In A, conforming to IEC 60947-4-1 standards, and is sensitive to phase failure, with a tripping current of I 30% of Ir on one phase, while the others are at Ir, also conforming to IEC 60947-4-1. This sensitivity to phase imbalance is crucial for protecting motors from potential damage caused by such irregularities.
The overload relay has a compact design with dimensions of 121 mm in height, 75 mm in width, and 100 mm in depth, making it suitable for installations where space is at a premium. It is equipped with screw clamp terminals that can accommodate control circuit cables ranging from 1 to 2.5 mm², ensuring a secure and reliable connection.
Constructed to withstand harsh conditions, the LR2D1307 has an ambient air temperature range for operation from -20 to 60 °C, and it meets rigorous standards including EN 60947-4-1, EN 60947-5-1, IEC 60947-4-1, and IEC 60947-5-1. It also boasts an IP2x degree of protection, conforming to VDE 0106, and is resistant to shocks and vibrations, ensuring durability and a long service life.
This overload relay is a discontinued product; however, it has not been replaced, and customers are advised to contact their customer care centre for more information. The LR2D1307 is a testament to Telemecanique's commitment to quality and reliability in motor protection solutions.
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Frequently Asked Questions
What is the function of an overload relay?
An overload relay is designed to protect an electric motor from overheating by detecting an overload condition and interrupting the current flow to the motor, thus preventing potential damage.
How does the thermal overload relay LR2D1307 protect a motor?
The LR2D1307 thermal overload relay protects a motor by using a bimetallic strip that heats up and bends when excessive current flows through it, triggering a mechanism that opens the circuit and stops the motor.
Can the LR2D1307 be used with any motor within its specified current range?
Yes, the LR2D1307 can be used with any motor as long as the motor's full load current falls within the 1.6 to 2.5 A range that the relay is designed to handle.
What are the mounting options for the LR2D1307?
The LR2D1307 can be mounted on a plate with EverLink power terminal block or on a rail with EverLink power terminal block, providing flexibility for different installation requirements.
What is the significance of the tripping threshold for the LR2D1307?
The tripping threshold indicates the current level at which the relay will trip to protect the motor. For the LR2D1307, it is set at 1.14 +/-0.06 times the rated current (In) of the relay, conforming to IEC 60947-4-1 standards.
Is the LR2D1307 sensitive to phase failure?
Yes, the LR2D1307 has phase failure sensitivity, meaning it will trip if the current on one phase drops to 30% of the rated current while the others remain at the rated current, as per IEC 60947-4-1.
What certifications does the LR2D1307 hold?
The LR2D1307 is certified with several standards including ATEX, EN 60947-4-1, EN 60947-5-1, IEC 60947-4-1, IEC 60947-5-1, and UL 508, ensuring compliance with international safety and quality requirements.
What is the operational voltage range for the LR2D1307?
The LR2D1307 is rated for operational voltages up to 690 V AC 50/60 Hz for the power circuit, conforming to IEC 60947-4-1.
What is the ambient air temperature range for the operation of the LR2D1307?
The LR2D1307 is designed to operate within an ambient air temperature range of -20 to 60 °C, conforming to IEC 60947-4-1.
What type of connections does the LR2D1307 support?
The LR2D1307 supports screw clamp terminals for control circuits, accommodating cables from 1 to 2.5 mm² in size, with flexibility for both solid and flexible cables with or without cable ends.
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