Schneider Electric LADN20A Auxiliary Contact Block, 2 NO + 2 NC, TeSys D

The Schneider Electric LADN20A is a high-quality auxiliary contact block designed for use with TeSys D contactors. It provides reliable switching for control circuits and signaling applications, featuring 2 normally open (NO) and 2 normally closed (NC) contacts. This front-mounting, clip-on block is easy to install and offers robust performance in industrial environments.

Advantages

Compact design saves panel space; screw clamp terminals ensure secure wiring; high mechanical durability of 30 million cycles; wide operating temperature range from -5 to 60 °C; compliant with international standards (IEC, UL, CSA).

Suitable for

• Control circuit switching in motor starters
• Signaling and interlocking applications
• Automation and industrial control panels

Key specifications

• Contact Configuration: 2 NO + 2 NC
• Rated Operational Current (AC-15): 3 A at 240 V, 1.8 A at 400 V, 1 A at 690 V
• Rated Operational Current (DC-13): 10 A at 24 V, 1 A at 60 V, 0.1 A at 250 V
• Rated Insulation Voltage: 690 V (IEC), 600 V (UL/CSA)
• Rated Impulse Withstand Voltage: 6 kV
• Connection: Screw clamp terminals, wire stripping length 8 mm
• Wire cross-section: 1 x 1...2.5 mm² (flexible with ferrule or solid)
• IP Protection: IP20
• Standards: IEC 60947-5-1, UL 60947-5-1, CSA C22.2 No 60947-5-1

Recommendations

For optimal performance, use with TeSys D contactors and ensure proper torque settings for screw terminals. Always follow local electrical codes and manufacturer guidelines.