Schneider LA2DT2 Auxiliary Contact Block

Schneider LA2DT2 Time Delay Auxiliary Contact Block

 

 

The Schneider LA2DT2 is a TeSys D time-delay auxiliary contact block, designed to be mounted on Schneider TeSys contactors. It provides one timed NO contact and one timed NC contact for motor control and automation circuits.

Product Information

• Brand: Schneider Electric
• Series: TeSys D
• Model: LA2DT2
• Type: Time Delay Auxiliary Contact Block
• Contact Configuration: 1 NO + 1 NC (timed)
• Time Delay Range: 0.1–30 seconds (on-delay)
• Mounting: Front-mounted, clip-on
• Compatible Contactors: Schneider TeSys D LC1D series contactors (LC1D09 to LC1D95)

What it actually is

This is not a relay module and not a PLC module.

It is an auxiliary timing contact block that clips onto the front of a contactor to add delayed switching functions.

Its functions include:

• Delayed NO/NC contact switching
• Sequential motor control
• Control circuit timing
• Interlocking and automation logic

System Role (Simple)

Control circuit

→ LA2DT2 Time Delay Auxiliary Contact Block

→ TeSys D Contactor

→ Motor / Solenoid / Control Circuit

The LA2DT2 provides a programmable delay before the auxiliary contacts change state, enabling timed control operations.

Key Features

• Adjustable 0.1–30 second on-delay
• 1 NO + 1 NC timed auxiliary contacts
• Front clip-on installation
• No additional panel space required
• Designed specifically for Schneider TeSys D contactors
• Compact and reliable industrial design

Typical Applications

• Motor starter circuits
• Sequential machine control
• Conveyor systems
• Pump control
• HVAC equipment
• Industrial automation panels
• Time-delayed control logic

Advantages

• Easy installation without rewiring the contactor
• Adjustable timing range
• Reliable mechanical timing operation
• Increases contactor functionality
• Suitable for industrial control applications

Important Notes

• Not a PLC ❌
• Not an independent timer relay ❌
• Not a contactor ❌
• It is a front-mounted time-delay auxiliary contact block ✔
• Must be installed on a compatible TeSys D contactor

Precautions

• Verify compatibility with the contactor model before installation.
• Set the required delay time before commissioning.
• Do not exceed the auxiliary contact electrical ratings.
• Installation should be performed with power disconnected.
• Periodically inspect for mechanical wear in high-cycle applications