Schneider Electric Telemecanique LA4DWB Interface Module

Description:

The Telemecanique LA4DWB Interface Module is used in industrial motor control systems to provide a solid-state interface between low-level DC control signals and AC-operated TeSys Deca contactors and control relays. Commonly installed in motor control centers (MCCs), conveyor systems, pumps, compressors, packaging machines, and industrial control panels. Maintenance teams, OEMs, and system integrators use this interface module for repair, replacement, retrofit, or industrial automation maintenance.

Applications:

The Telemecanique LA4DWB Interface Module is commonly used in industrial facilities to enable PLCs, electronic controllers, and low-voltage DC control devices to operate AC contactors in equipment such as conveyors, pumps, compressors, HVAC systems, material handling equipment, robotics, production lines, MCCs, and industrial control panels where dependable signal isolation, reliable machine control, process monitoring, and electrical interlocking are essential.

Technical Specifications:

• Manufacturer: Telemecanique (Schneider Electric)
• Model / Part Number: LA4DWB
• Product Type: Solid-State Interface Amplifier Module
• Product Series: TeSys Deca (LA4D)
• Technology: Solid-state interface amplifier
• Rated Supply Voltage (Us): 24 VDC
• Control Circuit Voltage Limits: 5–30 VDC at 20°C
• Rated Operational Voltage (Ue): 24–250 VAC, 50/60 Hz (control circuit)
• Rated Insulation Voltage (Ui): 250 V (IEC 60947-5-1)
• Conventional Free Air Thermal Current (Ith): 8 A
• Current Consumption: 8.5–15 mA at 20°C
• Electrical Durability: 20 million operating cycles at 240 VAC
• Local Indication: LED status indicator
• Mounting: Top-mounted on compatible contactors
• Compatible Devices: TeSys Deca LC1D09...LC1D115 contactors
• Terminal Type: Connector terminals for 1–2.5 mm² solid or flexible conductors
• Standards: IEC 60255-5, IEC 60947-5-1
• Certifications: UL, CSA
• Application Environment: Industrial motor control, automation systems, and electrical control panels.

Common Replacements:

• Schneider Electric LA4DWB Solid-State Interface Amplifier Module
• Siemens SIRIUS Interface Relay Module
• Allen-Bradley Bulletin 100-D Interface Module