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LRD350L
The Schneider Electric LRD350L circuit breaker operates effectively within a frequency range of 0 to 400 Hz. It incorporates both tripping and signaling mechanisms, ensuring reliable motor protection, particularly against phase imbalance incidents.
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Technical specifications for LRD350L
| Manufacturer | Schneider Electric |
|---|---|
| Product Type | Circuit Breaker (Contactor) |
| Product Line | TeSys |
| Part Number | LRD350L |
| EAN | 3389119215572 |
| Weight | 1.00 lbs (0.45 kg) |
| Series | Breakers |
| Network Frequency | Operates at 0–400 Hz |
| Mounting Support | Contactor, on a plate or on a rail with specific accessories |
| Auxiliary Contact Composition | 1 NO (Normally Open), 1 NC (Normally Closed) contacts |
| Trip Signaling | Included (trip flag indicator and auxiliary contacts for signaling) |
| Manual Control | Test and reset buttons, with a manual/automatic reset selector |
| Storage Temperature | -20°C to 60°C |
| Compact Design | 55 (W) mm |
| Fuse Rating | 4 A gG or BS for the signaling circuit |
| Compliance | IEC, UL, CSA, CCC, EAC |
| Environmental Performance | RoHS and REACh compliant |
| Thermal Protection Adjustment | 37–50 A |
| Tripping Class | Class 20 |
| Phase Unbalance Protection | Included (Ensures motor safety in case of phase imbalance) |
| Rated Insulation Voltage | 690 V (IEC 60947-4-1) |
The part number LRD350L from Schneider Electric is a circuit breaker designed for contactor applications. It is capable of operating across a network frequency from 0 to 400 Hz, making it suitable for a range of electrical systems. With a compact width of 55 mm, this device offers adaptability for various installation settings, including mounting on plates or rails when paired with specific accessories.
The LRD350L includes an auxiliary contact setup with one normally open (NO) and one normally closed (NC) contact, providing additional functionality for monitoring and control. A trip signaling mechanism is integrated, featuring both a trip flag indicator and auxiliary contacts that aid in quickly identifying issues. Users can easily manage the device through manual control methods that include test and reset buttons, as well as a selector for manual or automatic resets.
Rated for a storage temperature range of -20°C to 60°C, this breaker maintains performance in diverse environmental conditions. The thermal protection can be adjusted between 37 and 50 A, while the tripping class is classified as Class 20, ensuring compatibility with a variety of motors. The LRD350L is also equipped with phase unbalance protection, a critical feature for safeguarding the motor against potential damage due to phase imbalances.
In terms of electrical specifications, the device boasts a fuse rating of 4 A for the signaling circuit and a rated insulation voltage of up to 690 V (IEC 60947-4-1). The LRD350L circuit breaker is compliant with multiple international standards, including RoHS and REACh, addressing environmental performance requirements. Overall, it stands as a reliable solution for safeguarding electrical motors in various applications.
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