Schneider TeSys LADN40 Front Auxiliary Contact Block, 4NO
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Schneider Electric LADN40 is a front-mounted TeSys Deca auxiliary contact block with 4NO instantaneous contacts for compatible contactors and control relays. Screw-clamp terminals support control and signalling wiring. Its 10A thermal rating is separate from the voltage-dependent AC-15 and DC-13 switching ratings. The contactor or control relay is selected separately.
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| Model | LADN40 |
|---|---|
| Type | TeSys Deca instantaneous auxiliary contact block |
| Contact composition | 4NO |
| Mounting location | Front |
| Operation | Instantaneous |
| Range compatibility | TeSys D / Deca CAD and LC1D; TeSys F LC1F and CR1F |
| Rated operational voltage (Ue) | 690VAC, 25–400Hz |
| AC-15 operational current | 6A at 120VAC; 1.04A at 690VAC |
| DC-13 operational current | 0.55A at 125VDC; 0.1A at 600VDC |
| Conventional free-air thermal current (Ith) | 10A at 60°C; distinct from utilization-category switching ratings |
| Insulation voltage (Ui) | 690V IEC 60947-5-1; 600V UL/CSA |
| Minimum switching load | 5mA / 17V |
| Rated making capacity | 140A AC / 250A DC, IEC 60947-5-1 |
| Short-time rating at 60°C | 100A for 1s; 120A for 500ms; 140A for 100ms |
| Associated protection | 10A gG fuse per manufacturer specification |
| Mechanical durability | 30 million cycles |
| Single-conductor terminals | 1–4mm² rigid without cable end; 1–4mm² flexible with/without cable end |
| Two-conductor terminals | 2 × 1–4mm² rigid or unferruled flexible; 2 × 1–2.5mm² ferruled flexible |
| Terminal torque | 1.7Nm |
| Dimensions (H × W × D) | 48 × 44 × 42mm |
| Protection degree | IP2X, IEC 60529 |
| Operating / storage ambient | −5 to +60°C / −60 to +80°C |
| Operating altitude | 3000m |
| Colour | Dark grey |
| Standards | EN/IEC 60947-5-1; EN 50012; UL 60947-5-1; CSA C22.2 No 60947-5-1 |
| Net weight | 50g |
Schneider TeSys LADN40 Front Auxiliary Contact Block, 4NO
Schneider Electric LADN40 is a front-mounted TeSys Deca auxiliary contact block with 4NO instantaneous contacts for compatible contactors and control relays. Screw-clamp terminals support control and signalling wiring. Its 10A thermal rating is separate from the voltage-dependent AC-15 and DC-13 switching ratings. The contactor or control relay is selected separately.
Key specifications
- Model: LADN40
- Type: TeSys Deca instantaneous auxiliary contact block
- Contact composition: 4NO
- Mounting location: Front
- Operation: Instantaneous
- Range compatibility: TeSys D / Deca CAD and LC1D; TeSys F LC1F and CR1F
- Rated operational voltage (Ue): 690VAC, 25–400Hz
- AC-15 operational current: 6A at 120VAC; 1.04A at 690VAC
- DC-13 operational current: 0.55A at 125VDC; 0.1A at 600VDC
- Conventional free-air thermal current (Ith): 10A at 60°C; distinct from utilization-category switching ratings
- Insulation voltage (Ui): 690V IEC 60947-5-1; 600V UL/CSA
- Minimum switching load: 5mA / 17V
- Rated making capacity: 140A AC / 250A DC, IEC 60947-5-1
- Short-time rating at 60°C: 100A for 1s; 120A for 500ms; 140A for 100ms
- Associated protection: 10A gG fuse per manufacturer specification
- Mechanical durability: 30 million cycles
- Single-conductor terminals: 1–4mm² rigid without cable end; 1–4mm² flexible with/without cable end
- Two-conductor terminals: 2 × 1–4mm² rigid or unferruled flexible; 2 × 1–2.5mm² ferruled flexible
- Terminal torque: 1.7Nm
- Dimensions (H × W × D): 48 × 44 × 42mm
- Protection degree: IP2X, IEC 60529
- Operating / storage ambient: −5 to +60°C / −60 to +80°C
- Operating altitude: 3000m
- Colour: Dark grey
- Standards: EN/IEC 60947-5-1; EN 50012; UL 60947-5-1; CSA C22.2 No 60947-5-1
- Net weight: 50g
Official Schneider Electric datasheet
Submit your RFQ. Our team will send a quotation confirming price and availability.
| Model | LADN40 |
|---|---|
| Type | TeSys Deca instantaneous auxiliary contact block |
| Contact composition | 4NO |
| Mounting location | Front |
| Operation | Instantaneous |
| Range compatibility | TeSys D / Deca CAD and LC1D; TeSys F LC1F and CR1F |
| Rated operational voltage (Ue) | 690VAC, 25–400Hz |
| AC-15 operational current | 6A at 120VAC; 1.04A at 690VAC |
| DC-13 operational current | 0.55A at 125VDC; 0.1A at 600VDC |
| Conventional free-air thermal current (Ith) | 10A at 60°C; distinct from utilization-category switching ratings |
| Insulation voltage (Ui) | 690V IEC 60947-5-1; 600V UL/CSA |
| Minimum switching load | 5mA / 17V |
| Rated making capacity | 140A AC / 250A DC, IEC 60947-5-1 |
| Short-time rating at 60°C | 100A for 1s; 120A for 500ms; 140A for 100ms |
| Associated protection | 10A gG fuse per manufacturer specification |
| Mechanical durability | 30 million cycles |
| Single-conductor terminals | 1–4mm² rigid without cable end; 1–4mm² flexible with/without cable end |
| Two-conductor terminals | 2 × 1–4mm² rigid or unferruled flexible; 2 × 1–2.5mm² ferruled flexible |
| Terminal torque | 1.7Nm |
| Dimensions (H × W × D) | 48 × 44 × 42mm |
| Protection degree | IP2X, IEC 60529 |
| Operating / storage ambient | −5 to +60°C / −60 to +80°C |
| Operating altitude | 3000m |
| Colour | Dark grey |
| Standards | EN/IEC 60947-5-1; EN 50012; UL 60947-5-1; CSA C22.2 No 60947-5-1 |
| Net weight | 50g |