Description
Schneider Electric (Square D) LADN04 TeSys Auxiliary Contact Block
The Schneider Electric (Square D) LADN04 is a TeSys series auxiliary contact block designed to expand the switching and signaling capabilities of TeSys D-series contactors and motor starters. As a trusted component in Schneider Electric’s industry-leading TeSys motor control platform, the LADN04 provides reliable add-on contact positions for control circuit wiring, interlocking, and status indication in commercial and industrial HVAC and electrical systems.
Product Overview
The LADN04 auxiliary contact block mounts directly onto compatible TeSys D contactors, offering additional normally open (NO) or normally closed (NC) contact configurations to meet complex control circuit requirements. Its compact, modular design integrates seamlessly into existing motor control centers, control panels, and electrical enclosures without requiring additional panel space.
Key Features
- Designed for use with Schneider Electric TeSys D-series contactors and motor starters
- Add-on auxiliary contact block for expanded control circuit capability
- Modular, snap-on mounting for quick and tool-free installation
- Compact design minimizes panel space requirements
- Suitable for use in motor control, interlocking, and signaling applications
- Part of Schneider Electric’s globally recognized TeSys motor control product family
- Manufactured to Schneider Electric’s rigorous quality and reliability standards
Applications
- Commercial and industrial HVAC motor control panels
- Motor starter and contactor auxiliary control circuits
- Electrical interlocking and safety circuits
- Status indication and remote signaling wiring
- Motor control centers (MCCs)
Why Choose the LADN04?
The Schneider Electric TeSys platform is one of the most widely deployed motor control solutions in the world, trusted by HVAC contractors, electrical engineers, and facility managers for its durability and ease of integration. The LADN04 auxiliary contact block allows technicians to customize and expand contactor functionality on the job, reducing downtime and simplifying panel design. Its plug-in installation minimizes wiring errors and speeds up commissioning.
Brand & Compatibility
- Brand: Schneider Electric (Square D)
- Series: TeSys
- SKU: LADN04
- Compatible with: TeSys D-series contactors







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