1. Overload Protection:
   • Protects motors against overloads, preventing damage and extending motor life.
2. Phase Failure Protection:
   • Detects phase loss and provides protection, which is critical for three-phase motors.
3. Thermal Trip Class:
   • These relays generally have a thermal trip class of 10A or 20, suitable for various motor starting and operating conditions.
4. Adjustable Current Setting:
   • The relay has a dial for setting the appropriate current range to match the motor's full-load current.
5. Manual and Automatic Reset:
   • Provides flexibility for resetting the relay after a trip, either manually or automatically.
6. Compact Design:
   • The small footprint of the LR2K relays makes them suitable for use in compact control panels and systems.
7. Direct Mounting:
   • Can be directly mounted onto TeSys K contactors, simplifying assembly and reducing wiring.

Specifications:

• Current Range: Different models cover a wide range of current settings, typically from 0.1A up to 16A or more.
• Trip Class: 10A or 20
• Mounting: Direct mounting on TeSys K contactors
• Reset Type: Manual or automatic reset options
• Standards: Compliance with international standards such as IEC 60947-4-1

Application:

TeSys LR2K thermal overload relays are widely used in various applications including:

• Industrial motor control
• HVAC systems
• Pumps and compressors
• Conveyor systems
• Machine tools

Selection Guide:

When selecting a TeSys LR2K relay, consider the following:

1. Motor Full-Load Current (FLC):
   • Choose a relay with an adjustable current range that includes the motor’s FLC.
2. Trip Class:
   • Select the appropriate trip class based on the motor’s starting characteristics and application requirements.
3. Reset Mechanism:
   • Decide between manual or automatic reset based on the application’s operational needs.
4. Coordination with Contactor:
   • Ensure compatibility with the TeSys K contactor model being used.

Installation and Wiring:

• Ensure proper installation according to the manufacturer's guidelines.
• Directly mount the relay onto the TeSys K contactor or use appropriate mounting accessories.
• Connect the wiring according to the wiring diagram provided with the relay, ensuring correct connection of power and control circuits.

Maintenance:

Regular maintenance includes checking for proper operation, ensuring that the current setting matches the motor’s requirements, and inspecting for any signs of wear or damage.