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LRD32
The Schneider Electric LRD32 is a thermal overload relay within the TeSys series, specifically designed for motor protection applications. It is compliant with IEC 60947-4-1 and features thermal overload class 10A, ensuring reliable performance in diverse operating conditions.
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Technical specifications for LRD32
| Manufacturer | Schneider Electric |
|---|---|
| Product Type | Thermal overload relay |
| Product Line | TeSys |
| Part Number | LRD32 |
| Weight | 0.31 lbs (0.14 kg) |
| Relay Application | Motor protection |
| Thermal Overload Class | Class 10A conforming to IEC 60947-4-1 |
| Thermal Protection Adjustment Range | 23…32 A |
| Network Frequency | 0...400 Hz |
| Auxiliary Contact Composition | 1 NO + 1 NC |
| Conventional Free Air Thermal Current | 5 A for signalling circuit |
| Permissible Current | 1.5 A at 240 V AC |
| Rated Operational Voltage | 690 V AC 0...400 Hz |
| Rated Impulse Withstand Voltage | 6 kV |
| Control Type | Red push-button (stop), Blue push-button (reset) |
| Temperature Compensation | -20…60 °C |
| IP Degree of Protection | IP20 |
The LRD32 from Schneider Electric is a thermal overload relay designed to safeguard motors against overheating. This relay is classified as Class 10A, which adheres to the IEC 60947-4-1 standard. Users can adjust the thermal protection settings within the range of 23 to 32 A, allowing for flexibility based on specific application requirements. It accommodates a frequency range up to 400 Hz, making it suitable for various motor types and operational contexts.
In terms of connectivity, the relay consists of one normally open (NO) and one normally closed (NC) auxiliary contact. This configuration allows for effective control and signaling capabilities in conjunction with the motor system. The LRD32 can handle a conventional free air thermal current of 5 A specifically intended for signaling operations. The permissible current rating is set at 1.5 A for a voltage of 240 V AC, ensuring compatibility with common control systems.
With a rated operational voltage of 690 V AC and a rated impulse withstand voltage of 6 kV, the LRD32 is built to endure demanding electrical conditions. It features control functionalities through a red push-button for stopping and a blue push-button for resetting, enhancing operational management. Additionally, temperature compensation is effective between -20°C and 60°C, allowing the relay to perform optimally within varying environmental conditions.
In terms of physical specifications, the relay measures 66 mm in height, 45 mm in width, and 70 mm in depth, and the lightweight design ensures ease of installation, weighing only 0.124 kg. The IP20 rating implies limited protection against solid objects, emphasizing suitability for installation in controlled environments. The Schneider Electric LRD32 thermal overload relay is, therefore, a vital component for reliable motor protection in industrial applications.