| Attribute | Value |
|---|---|
| Product Name | Schneider Electric Telemecanique LR9F5371 Electronic Overload Relay |
| Brand | Schneider Electric |
| Series | Telemecanique TESYS |
| Type | Electronic Overload Relay |
| Model Number | LR9F5371 |
| Application | Electronic Motor Protection |
| Protection Class | Class 10 |
| UI | 1000V |
| UIMP | 8KV |
| IE | 132-220A |
| Standards | IEC/EN 60947-4-1 |
| Max Voltage | 600V A.C. MAX |
| ITH | 5A |
| Amp Wire Gauge | AWG 3/0-6 |
| Class | Class 10 |
| Temperature Rating | 75°C-CU |
| Torque Rating | 275 LB.IN. |
| Terminal Kit | Cat No. DZ2FH… |
| Trip Amps | 125% |
| Catalog Numbers | 13786280161A11, 7Q1346435773, 056601 |
| Compliance | GB14048.4 |
| Part Numbers | 7Q 13465, LR9F5371, 3 389110 566017 |
| Country of Origin | Made in France |
| Weight | 1.040 KG |
| Condition | New – 1 PCS |
| Reference Number | 52341 |
What is the LR9F5371 Electronic Overload Relay?
LR9F5371 belongs to the group of TeSys LRF Electronic Thermal Overload Relays in Schneider Electric’s offerings. It safeguards the motor against damage caused by overcurrent, three-phase faults, imbalances, and prolonged start times by detecting the thermal conditions associated with overload and opening the circuit before any damage happens. It is designed for perfectly compatible use with matching contactors ranging from LC1F185 to LC1F265.
It differs from the normal bimetallic overload relays because it has better accuracy. In addition, it ensures normal system functionality by minimizing nuisance trips and ensuring correct reset functions. Another aspect that differs from that of normal bimetallic overload relays is the signaling functionality.
Key Features
Precise Thermal Protection
-
Adjustable current range from 132 – 220 A to match your motor’s requirements.
-
Provides Class 10 thermal trip characteristics according to IEC standards, suitable for most industrial load profiles.
Integration & Compatibility
-
Designed to mount directly under TeSys F contactors such as LC1F185, LC1F225, and LC1F265, creating compact motor control assemblies.
-
Works with various control systems and is suitable for 50 Hz and 60 Hz AC networks.
Enhanced Protection & Reliability
-
Detects phase failure, phase imbalance, stalled rotor conditions, and overload events, ensuring comprehensive motor defense.
-
Manual reset and local signaling make troubleshooting easier and faster.
Robust Build & Standards Compliance
-
Built to meet stringent industrial standards (IEC 60947‑4), ensuring consistent performance in demanding environments.
-
Durable construction suited for industrial and marine applications where reliability is a must.
Applications
The LR9F5371 electronic overload relay is widely used across sectors where motor protection is critical:
Industrial Automation
In manufacturing lines, pumps, compressors, conveyors, and processing equipment where motors operate under fluctuating loads, this relay prevents costly downtime and equipment failures.
Marine and Offshore
Protects shipboard motors and auxiliary equipment, guarding against electrical faults in environments where reliability and safety are essential.
Building Services
In HVAC systems, escalators, and other large mechanical installations, the relay ensures motors run safely and efficiently.
Power Distribution
Works within motor control centers (MCCs) in power distribution networks to manage and protect multiple motor circuits.
Why Choose the LR9F5371 Overload Relay?
Reliable Motor Protection
With a finely adjustable thermal range and advanced sensing, it reduces the risk of motor burnout and extends service life.
Easy Integration
Designed for direct compatibility with TeSys contactors, this relay simplifies panel layouts and control logic.
Industry‑Grade Durability
Constructed to withstand the rigors of industrial and marine settings, it delivers consistent performance over long operating cycles.
Enhanced Safety & Maintenance
Manual reset and clear signaling help maintenance teams quickly identify and resolve issues, reducing downtime.
Trusted Brand & Support
Schneider Electric and Telemecanique are globally recognized for quality electrical components and trusted technical support.
