Square D LRD3365 Thermal Overload Relay – 80–104A – TeSys Deca Series – Class 10 – Motor Protection Relay for LC1D80/LC1D95 Contactors

The Square D / Schneider Electric LRD3365 is a thermal overload relay from the TeSys Deca (LRD) series designed for reliable protection of large three-phase motors. It is used with LC1D80 and LC1D95 contactors to protect against overload, phase loss, and stalled rotor conditions in demanding industrial motor applications.

Electrical Ratings

• Current Setting Range: 80–104 A
• Phase: 3 Phase
• Poles: 3 Pole (thermal sensing elements)
• Protection Type: Thermal overload protection
• Trip Class: Class 10 (fast motor protection, trips within ~10 seconds under overload conditions)
• Phase Loss Sensitivity: Yes
• Application Type: Motor overload and protection relay

Configuration and Function

• Device Type: Thermal Overload Relay
• Series: TeSys Deca (LRD Series)
• Primary Function: Motor protection (overload, phase failure, stall protection)
• Reset Function: Manual or Automatic reset selectable
• Trip Mechanism: Thermal bimetallic system
• Test Function: Built-in test/reset function
• Trip Indication: Mechanical trip indicator

Compatibility

• Suitable For Use With:
  • LC1D80 contactors
  • LC1D95 contactors
• System Type: Motor starter assembly (contactor + overload relay)
• Installation: Direct mounting under compatible LC1D contactors

Mechanical and Physical Characteristics

• Mounting Type: DIN rail or plate mount (system dependent)
• Terminal Type: Screw clamp terminals
• Compact modular design for control panels
• Heavy-duty industrial construction for high-current applications
• Designed for long service life in harsh environments
• Operating Temperature Range: typically -20 °C to 60 °C

Contacts and Control

• Auxiliary Contacts: 1 NO + 1 NC
• Contact Function: Trip signaling and interlock control
• Reset Options: Manual / Automatic selectable
• Built-in Test Function: Yes
• Mechanical trip indication included

Standards and Certifications

• IEC 60947-4-1 compliant
• UL / CSA / CCC / EAC certified
• ATEX certified (where applicable)
• Marine approvals: DNV-GL, BV, RINA, LROS
• UKCA compliant
• RoHS / REACh compliant
• Manufacturer: Schneider Electric / Square D
• Series: TeSys Deca
• MPN: LRD3365

Features

• Adjustable 80–104A overload protection range
• Designed for high-power industrial motors
• Class 10 fast tripping for sensitive motor protection
• Phase loss detection for enhanced motor safety
• Compatible with LC1D80 and LC1D95 contactors
• 1NO + 1NC auxiliary contacts for control systems
• Direct mounting for compact motor starter assembly

Returns are easy

You may return items within 30 days of delivery for a refund.

FREE Shipping on orders over $149.

My Circuit Breakers offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).

Same Day Shipping

We strive to ship out your items within one business day.

In rare circumstances, My Circuit Breakers may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.

My Circuit Breakers provides a comprehensive 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer). Extended warranties are available upon request.