Schneider Electric LA1LB0311 Auxiliary Contact Block

Description:

The Telemecanique LA1LB0311 Auxiliary Contact Block is used in industrial motor control systems to provide one normally open and one normally closed auxiliary contact for contactors and combination motor starters. 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 LA1LB0311 Auxiliary Contact Block is commonly used in industrial facilities to expand the control capabilities of contactors and motor starters in equipment such as conveyors, pumps, compressors, HVAC systems, material handling equipment, and automated manufacturing machinery where dependable electrical interlocking, status feedback, control circuit expansion, and reliable machine control are essential.

Technical Specifications:

• Manufacturer: Telemecanique (Schneider Electric)
• Model / Part Number: LA1LB0311
• Product Type: Auxiliary Contact Block
• Contact Configuration: 1 Normally Open (1 NO) + 1 Normally Closed (1 NC)
• Auxiliary Contact Operation: Instantaneous
• Mounting Location: Left-side mount
• Electrical Connection: Screw clamp terminals
• Rated Operational Voltage (Ue): Up to 690 VAC
• Conventional Free Air Thermal Current (Ith): 10 A
• Rated Insulation Voltage (Ui): 690 VAC (IEC), 600 VAC (UL/CSA)
• Product Compatibility: Telemecanique Integral self-protected combination motor controllers and compatible contactors
• Device Function: Auxiliary signaling and control circuit expansion
• Product Status: Discontinued legacy model
• Application Environment: Industrial motor control, automation systems, and electrical control panels.

Common Replacements:

• Schneider Electric LA1LB0311 Auxiliary Contact Block
• Siemens 3RH29 Auxiliary Contact Block
• Allen-Bradley 100-S Auxiliary Contact Block