Schneider Electric LC1D18BDLRD21 Power Contactor

Description:

The Schneider Electric LC1D18 Contactor with LRD21 Thermal Overload Relay is used in industrial motor control systems to provide reliable motor switching and overload protection for three-phase motors. Commonly installed in motor control centers (MCCs), conveyor systems, pumps, compressors, and industrial control panels. Maintenance teams, OEMs, and system integrators use this motor starter assembly for repair, replacement, retrofit, or industrial automation maintenance.

Applications:

The Schneider Electric LC1D18 Contactor with LRD21 Thermal Overload Relay is commonly used in industrial facilities to provide dependable motor starting and overload protection in equipment such as conveyors, pumps, compressors, packaging machines, HVAC systems, material handling equipment, robotics, production lines, MCCs, and industrial control panels where dependable motor protection, reliable machine control, process monitoring, and electrical interlocking are essential.

Technical Specifications:

• Manufacturer: Schneider Electric (formerly Telemecanique)
• Contactor Model: LC1D18
• Overload Relay Model: LRD21
• Product Type: Magnetic Contactor with Thermal Overload Relay
• Product Series: TeSys D / TeSys Deca
• Contactor Rated Operational Current (Ie): 18 A (AC-3)
• Number of Poles: 3-Pole
• Motor Power Rating: Up to 7.5 kW at 400/415 VAC (AC-3)
• Overload Relay Adjustment Range: 12–18 A
• Thermal Overload Class: Class 10A
• Auxiliary Contacts (LRD21): 1 NO + 1 NC
• Rated Operational Voltage (Overload Relay): Up to 690 VAC
• Rated Insulation Voltage (Ui): 690 VAC (IEC 60947-4-1)
• Mounting: Direct mounting beneath LC1D18 contactor or DIN rail/panel mounting with accessories
• Compatible Contactors: LC1D18, LC1D25, LC1D32, and LC1D38
• Terminal Type: Screw clamp terminals
• Standards: IEC 60947-4-1, UL, CSA
• Application Environment: Industrial motor control, automation systems, and electrical control panels.

Common Replacements:

• Schneider Electric LC1D18 Contactor
• Siemens SIRIUS 3RT2 Contactor
• Allen-Bradley 100-C18 Contactor