Description
The Schneider Electric LADN11 is a compact, rugged auxiliary contact block intended to supplement contactors (such as the TeSys D and TeSys Deca LC1D/LC1F series) and control relays. It mechanically attaches to the front of the contactor, adding auxiliary switching capability for electrical control and automation systems. With a dual contact configuration (1 NO + 1 NC), it can be used to provide feedback to control circuits—such as signaling motor status, interlocks, or safety logic.
The contacts operate instantaneously with minimal overlap between opening and closing states, ensuring reliable switching performance. The unit supports a broad operational voltage range up to 690 V AC and can carry up to 10 A of load in AC applications, making it suitable for various industrial control tasks. It complies with multiple international standards (IEC 60947-5-1, UL, CSA) and offers robust mechanical durability with up to ~30 million cycles. Designed with screw clamp terminals and IP20 finger-safe protection, it ensures secure electrical connections and safe operation in equipment panels.
📊 Specifications Table
| Specification | Details |
|---|---|
| Product | Auxiliary Contact Block – LADN11 |
| Brand/Range | Schneider Electric, TeSys / TeSys Deca / TeSys D |
| Contact Configuration | 1 Normally Open (NO) + 1 Normally Closed (NC) |
| Mounting Location | Front of contactor (clip-on) |
| Terminal Type | Screw-clamp |
| Rated Operational Voltage (Ue) | Up to 690 V AC (25–400 Hz) |
| Rated Operational Current (Ie) | 10 A at AC-15, 230 V (typical) |
| Thermal Current (Ith) | 10 A at 60 °C |
| Rated Insulation Voltage (Ui) | 690 V (IEC); 600 V (UL/CSA) |
| Minimum Switching Voltage/Current | 17 V / 5 mA |
| Irms Rated Making Capacity | 140 A AC / 250 A DC |
| Permissible Short-Time Rating | 100–140 A (varies by duration) |
| Contact Operation | Instantaneous |
| Mechanical Durability | ~30 million cycles |
| Protection Rating | IP20 (finger-safe) |
| Operating Temperature | ~-5 °C to +60 °C |
| Standards / Certifications | IEC 60947-5-1, UL 60947-5-1, CSA, CCC, EAC, UKCA |
| Dimensions (approx.) | 48 × 26 × 42 mm (H×W×D) |
| Application | Provides auxiliary switching for contactors and relays in control circuits |
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