Schneider Electric LA1-LC021 Auxiliary Contact Block

Description:

The Telemecanique LA1 LC021 Auxiliary Contact Block is used in industrial motor control systems to provide additional auxiliary contacts for TeSys Integral contactor breakers and control circuits. Commonly installed in motor control centers (MCCs), conveyor systems, pumps, compressors, packaging machinery, and industrial control panels. Maintenance teams, OEMs, and system integrators use this auxiliary contact block for repair, replacement, retrofit, or industrial automation maintenance.

Applications:

The Telemecanique LA1 LC021 Auxiliary Contact Block is commonly used in industrial facilities to expand the control capabilities of TeSys Integral contactor breakers in equipment such as conveyors, pumps, compressors, HVAC systems, material handling equipment, and automated manufacturing machinery where dependable status feedback, electrical interlocking, control circuit expansion, and reliable machine control are essential.

Technical Specifications:

• Manufacturer: Telemecanique (Schneider Electric)
• Model / Part Number: LA1 LC021 (LA1LC021)
• Product Type: Auxiliary Contact Block
• Product Series: TeSys Integral (LA1LC)
• Contact Configuration: 2 Normally Open (2 NO) + 1 Normally Closed (1 NC)
• Auxiliary Contact Operation: Instantaneous
• Mounting Location: Right side of compatible TeSys Integral contactor breaker
• Compatible Devices: TeSys Integral contactor breakers
• Rated Operational Voltage (Ue): Up to 690 VAC
• Rated Insulation Voltage (Ui): 690 VAC
• Conventional Free Air Thermal Current (Ith): 6 A
• Terminal Type: Screw clamp terminals (1 × 2.5 mm² or 2 × 1.5 mm² conductors)
• Device Application: Control circuit expansion and status indication
• Application Environment: Industrial motor control, automation systems, and electrical control panels.

Common Replacements:

• Schneider Electric LA1LC021 Auxiliary Contact Block
• Siemens 3RH29 Auxiliary Contact Block
• Allen-Bradley 100-S Auxiliary Contact Block