Schneider LC1D40AB7 | TeSys D contactor – 3P(3 NO) – AC-3 – <= 440 V 40 A – 24 V AC 50/60Hz coil

Technical Specifications

• Model: LC1D40AB7

• Series: TeSys D

• Type: Electromechanical Contactor

• Number of Poles: 3P (3 Normally Open contacts – 3 NO)

• Control Circuit Voltage: 24 V AC, 50/60 Hz

• Main Circuit Voltage: Up to 440 V AC

• Rated Operational Current (Ie):

  • AC-3 Duty (for motor control): 40 A at 440 V

• Rated Operational Power (AC-3):

  • 18.5 kW @ 400/415 V (3-phase motor)

• Auxiliary Contacts: Optional (can be added via clip-on modules)

• Mounting: DIN rail or screw mounting

• Conformity: IEC 60947-4-1 and IEC 60947-5-1

• Electrical Durability: Up to 1.5 million cycles (AC-3 duty)

• Mechanical Durability: Up to 10 million cycles

• Operating Temperature: -5°C to +60°C

• Protection Class: IP20 (with terminal shrouds)

• Certifications: CE, UL, CSA, EAC

Key Features

1. Robust 3-Pole Switching Capability:
   The LC1D40AB7 features three normally open (3 NO) main contacts, enabling reliable control of three-phase loads such as motors and resistive loads.

2. High-Performance AC-3 Rating:
   With a 40 A current rating for AC-3 duty, this contactor is ideal for starting and stopping motors up to 18.5 kW (at 400V), which covers a wide range of industrial machinery and HVAC equipment.

3. Low Voltage Control Coil (24 V AC):
   The 24 V AC coil is suitable for control circuits where low-voltage operation is needed, improving operational safety and compatibility with control systems.

4. Compact and Modular Design:
   The TeSys D series is known for its compact footprint and modular architecture, allowing easy integration into electrical panels and straightforward installation alongside other Schneider components.

5. Flexible Mounting Options:
   Can be mounted on a DIN rail or via screws, providing flexibility for panel designers and installers.

6. Long Mechanical and Electrical Life:
   Built for endurance, the LC1D40AB7 offers up to 10 million mechanical operations and 1.5 million electrical operations under typical AC-3 loads.

7. Wide Accessory Range:
   Compatible with a full range of TeSys D accessories such as auxiliary contact blocks, thermal overload relays, timer blocks, and mechanical interlocks, enhancing its versatility in control applications.

8. Compliance with Global Standards:
   Certified under IEC, UL, CSA, and other international standards, making it suitable for worldwide applications.

Typical Applications

1. Motor Control:
   Ideal for controlling three-phase motors in conveyors, pumps, compressors, and industrial automation setups. Provides reliable start/stop control and integration into motor starter circuits.

2. Lighting and HVAC Systems:
   Used in commercial buildings and industrial facilities to switch and control large lighting banks or HVAC equipment with moderate inductive loads.

3. Heating and Resistive Load Switching:
   Suitable for switching resistive loads such as electric heaters and ovens where precise control and high reliability are essential.

4. Control Panels and Starters:
   A core component in motor starter panels, including direct-on-line (DOL) starters, reversing starters, and star-delta starters.

5. Process Automation:
   Used in automated machinery and PLC-controlled systems where it serves as the interface between control signals and power circuits.