Schneider Electric LRD3322 Thermal Overload Relay – 17–25A – TeSys Deca Series – DIN Rail Mount – Motor Protection Relay for LC1D40 to LC1D95 Contactors

The Schneider Electric LRD3322 is a 3-pole thermal overload relay from the TeSys Deca series, designed to provide reliable protection for three-phase motors against overload and phase failure conditions. It is used in combination with LC1D-series contactors to form a complete motor starter, ensuring safe and efficient motor operation in industrial applications.

Electrical Ratings

• Current Setting Range: 17–25 A
• Voltage Rating: up to 600 / 1000 V AC
• Phase: 3 Phase
• Poles: 3 Pole (thermal sensing elements)
• Protection Type: Thermal overload protection
• Application Type: Motor protection relay

Configuration and Function

• Device Type: Thermal Overload Relay
• Series: TeSys Deca
• Frame Type: LRD
• Primary Function: Motor overload and phase loss protection
• Reset Function: Manual/automatic reset (configurable)
• Trip Mechanism: Thermal bimetallic system
• Trip Indication: Auxiliary contact signaling

Compatibility

• Suitable For Use With:
  • LC1D40 contactors
  • LC1D50 contactors
  • LC1D65 contactors
  • LC1D95 contactors
• System Type: Motor starter assembly (contactor + overload relay)
• Installation: Direct mounting to compatible LC1D contactors

Mechanical and Physical Characteristics

• Mounting Type: DIN Rail Mount
• Terminal Type: Screw clamp terminals
• Dimensions: 4.52 in (L) × 2.75 in (W) × 3.19 in (H)
• Operating Temperature Range: -20 °C to 60 °C
• Compact industrial design for control panel integration
• High durability for motor protection applications

Contacts and Control

• Auxiliary Contacts: 1 NO + 1 NC
• Contact Function: Trip indication and control interlock
• Reset Type: Manual or automatic selectable
• Provides reliable overload trip signaling for control systems

Standards and Certifications

• IEC / EN / UL / CSA / CCC / GB/T compliant
• EAC certified
• Marine approvals: BV, DNV-GL, RINA, LROS
• ATEX certified (INERIS)
• UKCA compliant
• RoHS / REACh compliant
• Manufacturer: Schneider Electric
• Series: TeSys Deca
• MPN: LRD3322
• UPC / GTIN: 785901519829

Features

• Adjustable 17–25A thermal overload protection range
• Designed for wide LC1D compatibility (up to LC1D95)
• Protects motors from overload, phase loss, and imbalance
• 1NO + 1NC auxiliary contacts for control and signaling
• Compact modular TeSys Deca design
• Direct mounting with LC1D contactors for motor starters
• High reliability in industrial environments
• Wide international certification approvals
• Suitable for HVAC, pumps, conveyors, and industrial 

Returns are easy

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

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