Overview
The Schneider LADN11 is a proven auxiliary contact block designed for the TeSys D series of industrial contactors. This compact front-mounted unit provides reliable status indication and control signaling by adding an extra 1NO/1NC (normally open/normally closed) contact pair to existing TeSys D contactors. The contact block is factory-matched for seamless integration and is widely used in motor starter applications, remote signaling circuits, and electrical interlocking systems.
Key Features
- 1 normally open + 1 normally closed contact configuration (1NO+1NC)
- Front-mounting design with screw clamp terminals for secure wiring
- 10A rated contacts at 600VAC (690VAC rated)
- Compatible with LC1D09 through LC1D150 contactors
- IEC standard design for international industrial use
- Compact form factor fits standard DIN rail mounting infrastructure
Technical Specifications
- Contact Configuration: 1NO + 1NC (DPST)
- Current Rating: 10A
- Voltage Rating: 600VAC maximum (690VAC rated)
- Frequency: 25–400 Hz
- Terminal Type: Screw clamp (M3 terminals)
- Mounting: Front-mounted snap-on design
- IP Rating: NEMA A600/Q600
- Quantity per Contactor: Maximum 1 unit
Typical Applications
- Motor starter circuits requiring status feedback (run/stop indication)
- Remote signaling and alarm circuits
- Electrical interlocking for safety control logic
- PLC input triggering and event logging
- Control relay activation in cascade circuits
- Motor applications up to 100 HP (480VAC) or 125 HP (600VAC)
Compatibility & Replacements
Compatible With
- Schneider TeSys D LC1D contactors (LC1D09 through LC1D150)
- LC1DT20 through LC1DT40 4-pole contactors
- CAD32 through CAD50 control relays
- TeSys F LC1F contactors
- CR1F relay units
Replaces / Drop-In Replacement For
- Telemecanique LA1 DN11 (legacy equivalent)
- Square D LA1 DN11 auxiliary contact blocks
Works With
- Standard 24VDC control circuits
- 110–480VAC industrial control systems
- PLC and relay-based automation control
- EtherNet/IP and MODBUS networked starters (via contactor integration)
