LADN22 auxiliary block contact order, mounting and control-circuit verification

Schneider Electric LADN22 adds four auxiliary contacts to compatible TeSys Deca contactors. Its 2NO+2NC layout is for control and indication circuits, not for switching motor power. The shared motor-control montage shows a product category rather than an exact LADN22 accessory.

Technical specification and selection data

Terminal order matters

The LADN22 contact order and terminal numbering must agree with the panel drawing. Schneider distinguishes LADN22 from some similar-looking suffix variants by contact sequence. Label every wire before removal and verify both normally open and normally closed functions after fitting.

Host compatibility

Confirm the exact LC1D host, available mounting position and any already installed accessories. A block that appears to clip onto the contactor may interfere with another module or alter the wiring route. Check the manufacturer fit list for LADN22.

Control test

Use an approved isolation procedure, install LADN22 and test each auxiliary circuit through contactor energize and release. Record the final contact map and check that interlocks and feedback signals respond as designed.

Similar-looking Schneider references

The following codes resemble LADN22 in naming or appearance. Ratings, functions and connection details can differ; they are comparison references, not guaranteed substitutes for LADN22.

LADN223, LADN22G, LADN02, LADN20, LADN21, LADN23, LADN20C, LADN04, LADN11, LADN13

Before placing an order

Specify LADN22 with the host contactor code, four required contact functions and terminal arrangement. Compare any LADN substitute to LADN22 at the contact-number level.

For LADN22, confirm the printed designation, current Schneider Electric documentation, installation conditions and any lifecycle notice before purchase or commissioning.