Schneider LADN04 Electric LADN04 TeSys Auxiliary Contact Block 0NO+4NC

The Schneider Electric LADN04 is a front-mounting auxiliary contact block from the TeSys D and TeSys Deca ranges, providing 4 normally closed (NC) instantaneous contacts for control and signalling circuits. Compatible with TeSys D and TeSys F contactors, it is rated for operation up to 690 V AC with a conventional free air thermal current of 10 A at 60°C.

Technical specifications:

• Commercial reference: LADN04
• Manufacturer: Schneider Electric
• EAN:
• Series / range: TeSys D / TeSys Deca
• Product type: Auxiliary contact block
• Contact arrangement: 4 NC, instantaneous
• Mounting location: Front
• Compatible product groups: TeSys D LC1D, TeSys D CAD, TeSys F LC1F, TeSys F CR1F, TeSys Deca CAD, TeSys Deca LC1D
• Rated operating voltage [Ue]: 690 V AC (25...400 Hz)
• Rated current [Ie]: 6 A at 120 V AC-15; 1.04 A at 690 V AC-15; 0.55 A at 125 V DC-13; 0.1 A at 600 V DC-13
• Rated insulation voltage [Ui]: 690 V (IEC 60947-5-1); 600 V (UL/CSA)
• Conventional free air thermal current [Ith]: 10 A at 60°C
• Making capacity [Irms]: 140 A AC / 250 A DC (IEC 60947-5-1)
• Mechanical durability: 30 million cycles
• Minimum switching current: 5 mA
• Minimum switching voltage: 17 V
• IP protection rating: IP20 (IEC 60529)
• Operating temperature: -5...60°C
• Storage temperature: -60...80°C
• Operating altitude: 3000 m
• Connection type: Screw terminals, 1...4 mm² flexible and rigid cable
• Tightening torque: 1.7 N.m
• Dimensions (WxHxD): 44 x 48 x 42 mm
• Weight: 0.05 kg
• Color: Dark grey
• Certifications: CB Scheme, UL, CSA, CCC, EAC, UKCA

Features and benefits:

• 4 NC instantaneous contacts enable reliable signalling, feedback, and interlocking in control circuits
• Front-mounting design for straightforward installation on compatible TeSys D and TeSys F contactors
• 30 million cycle mechanical durability ensures a long service life in high-cycle applications
• Screw terminals accept 1 to 4 mm² flexible and rigid cables for flexible wiring options
• Non-overlap time of 1.5 ms between NC and NO contacts ensures safe switching transitions

Applications:

• Motor control and protection panels built around TeSys D or TeSys F contactors
• Industrial automation systems requiring expanded NC control contact capacity
• Signalling, interlocking, and status feedback circuits in motor starters
• HVAC and building automation control panels using TeSys Deca contactors

Compliant with EN/IEC 60947-5-1, GB/T 14048.5, EN 50012, UL 60947-5-1, and CSA C22.2 No 60947-5-1. Part of the Schneider Electric TeSys D range.

Also known as: Schneider LADN04, Schneider Electric LADN04, TeSys D auxiliary contact block, 4NC contact block.