Schneider Electric LRD12 TeSys 034680 Relay

Schneider Electric LRD12 TeSys 034680 Thermal Overload Relay

The Schneider Electric LRD12 TeSys 034680 is a differential thermal overload relay designed to provide reliable protection for AC circuits and motors against overloads. With an adjustable thermal protection range of 5.5 to 8 amperes, it ensures precise safeguarding of electrical equipment.

Key Features

• Adjustable Thermal Protection: Offers a setting range from 5.5 to 8 A, allowing for tailored protection based on specific application requirements.
• Class 10A Trip Characteristics: Conforms to IEC 60947-4-1 standards, ensuring rapid response to overload conditions.
• Phase Failure Sensitivity: Detects phase loss, providing enhanced protection for three-phase motors.
• Manual or Automatic Reset: Features both manual and automatic reset options for operational flexibility.
• Compact Design: Dimensions of 66 mm (height) x 45 mm (width) x 70 mm (depth) facilitate easy integration into various control panels.
• Wide Network Frequency Compatibility: Operates effectively within a frequency range of 0 to 400 Hz.

Technical Specifications

• Rated Insulation Voltage (Ui): 690 V conforming to IEC 60947-4-1.
• Rated Impulse Withstand Voltage (Uimp): 6 kV.
• Auxiliary Contacts: 1 Normally Open (NO) + 1 Normally Closed (NC).
• Mounting Options: Compatible with plate mounting, rail mounting, and direct mounting under contactors.
• Operating Temperature Range: -20°C to 60°C without derating.
• Protection Rating: IP20, ensuring protection against solid objects larger than 12.5 mm.

Certifications and Compliance

The LRD12 relay adheres to multiple international standards, including:

• IEC 60947-4-1
• UL 60947-4-1
• CSA C22.2 No 60947-4-1
• CCC
• EAC
• ATEX INERIS
• Marine certifications such as BV, RINA, DNV-GL, and LROS (Lloyd’s Register of Shipping)

Additionally, it is RoHS compliant, reflecting Schneider Electric’s commitment to environmental sustainability.

Applications

The LRD12 is ideal for motor protection applications, particularly when used in conjunction with TeSys D contactors. Its design ensures safe and effective protection against overloads and phase failures, making it suitable for various industrial and commercial settings.

In summary, the Schneider Electric LRD12 TeSys 034680 Thermal Overload Relay combines advanced protection features with a compact design, offering a reliable solution for safeguarding motors and AC circuits against overload conditions.