TeSys K
Schneider Electric catalog image for this SKU; may represent the product family.
AUXILIARY CONTACT BLOCK
Auxiliary contact block, TeSys K, 4NO, front mounting, screw clamp terminals
SKU LA1KN40Schneider Electric LA1KN40 is a auxiliary contact block in the TeSys K range. Key specifications include contact configuration: 4 NO; operational voltage: 690 V AC 25...400 Hz; ip protection: IP20 conforming to IEC 60529.
4 NOContact configuration
690 V AC 25...400 HzOperational voltage
IP20 conforming to IEC 60529IP protection
PRODUCT DATA
Technical specifications
Source: Schneider Electric product catalog.
Verified September 18, 2026.
| Product reference | LA1KN40 |
|---|---|
| Range | TeSys |
| Product name | TeSys K |
| Product or component type | Auxiliary contact block |
| Device short name | LA1 |
| Range compatibility | TeSys K LC1K TeSys K CA2K TeSys K CA3K |
| Mounting location | Front |
| Pole contact composition | 4 NO |
| Contacts operation | Instantaneous |
| [Ue] rated operational voltage | 690 V AC 25...400 Hz |
| [Ui] rated insulation voltage | 690 V conforming to IEC 60947-5-1 600 V conforming to UL 60947-5-1 600 V conforming to CSA C22.2 No 60947-5-1 |
| [Ith] conventional free air thermal current | 10 A (at 50 °C) |
| Standards | EN/IEC 60947-5-1 UL 60947-5-1 CSA C22.2 No 60947-5-1 GB/T 14048.5 JIS C8201-5-1 UL 60335-2-40:Annex JJ |
| Product certifications | CB Scheme CCC UL CSA CE UKCA |
| Irms rated making capacity | 110 A at <= 690 V AC conforming to IEC 60947 |
| Permissible short-time rating | 80 A 1 s 60 A 500 ms 110 A 100 ms |
| Associated fuse rating | 10 A gG at <= 690 V conforming to IEC 60947 |
| Minimum switching current | 5 mA |
| Minimum switching voltage | 17 V |
| Non overlap distance | 0.5 mm |
| Insulation resistance | > 10 MOhm |
| Connections - terminals | Screw clamp terminals 1 cable(s) 0.34…1.5 mm²flexible with cable end Screw clamp terminals 1 cable(s) 0.75…4 mm²flexible without cable end Screw clamp terminals 1 cable(s) 1.5…4 mm²rigid Screw clamp terminals 2 cable(s) 0.34…1.5 mm²flexible with cable end Screw clamp terminals 2 cable(s) 0.75…4 mm²flexible without cable end Screw clamp terminals 2 cable(s) 1.5…4 mm²rigid |
| Tightening torque | 1.3 N.m - with screwdriver Philips No 2 1.3 N.m - with screwdriver pozidriv No 2 |
| Height | 30 mm |
| Width | 38 mm |
| Depth | 35 mm |
| Net weight | 0.045 kg |
| Environmental characteristic | Normal environment |
| IP degree of protection | IP20 conforming to IEC 60529 |
| Protective treatment | TC conforming to IEC 60068 |
| Ambient air temperature for storage | -50…80 °C |
| Ambient air temperature for operation | -25…50 °C |
| Operating altitude | 2000 m |
For complete electrical ratings, applicable standards, connection requirements and installation instructions, consult the official Schneider Electric reference ↗.