Schneider Electric Auxiliary Contact Blocks: LADN Series & Variants

Introduction

Schneider Electric's LADN Series Auxiliary Contact Blocks represent a critical enhancement to industrial contactors, providing reliable signaling and control circuit extension capabilities. Designed for seamless integration with Schneider contactors, these modules offer exceptional electrical and mechanical durability in demanding environments.

Key Features & Technical Advantages

1. **Modularible with TeSys D, LC1D, LC2D series contactors.

• Flexible Configuration: Supports NO (Normally Open), NC (Normally Closed), or mixed configurations (e.g., 1NO+1NC).
• Model Range:
  • Standard Models: LADN11C, LADN02C, LADN20C, LADN22C, LADN31C, LADN13C, LADN40C, LADN04C
  • Specialized Variants: LAD4RC (4NO),LAD9V2` (1NO+1NC with screw terminals)

2. Robust Construction

• Materials: Flame-retardant thermoplastics (UL94 V0 rated).
• Contact Rating:
  • Up to 5A at 230V AC / 24V DC (resistive load)
  • Mechanical lifespan: 10 million operations
• Termination: Secure screw-clamp terminals for reliable connections.

3. Certification & Safety

• International Standards: IEC/EN 60947, UL 508, CSA C22.2
• Isolation: Reinforced insulation between contact circuits and main contactor.

Applications

These auxiliary contacts are engineered for:

• Control Circuit Extension: Adding status feedback (e.g., motor running/stopped).
• Interlocking: Safety circuits in conveyor systems, pumps, and HVAC.
• Sequential Logic: Multi-contactor automation setups.

Why Choose Schneider LADN Series?

• Brand Reliability: Schneider Electric’s global reputation for industrial component quality.
• Plug-and-Play Installation: Tool-free mounting onto compatible contactors.
• Maintenance Reduction: Minimize downtime with contacts rated for high cycling.

Ordering Information

| Model | Configuration | Terminal Type | |----------------|-------------------|-------------------| | LADN11C | 1NO | Push-in | | LADN02C | 2NO | Push-in | | LADN22C | 2NC | Push-in | | … | … | … | | LAD4RCU | 4NO | Screw | | LAD9V2 | 1NO+1NC | Screw |

Note: Specify the required contact configuration (NO/NC) and terminal type when ordering. Consult Schneider technical datasheets for full compatibility matrices.

Upgrade your control systems with Schneider’s precision-engineered auxiliary contacts – where reliability meets innovation.