This interlock prevents two contactors from closing simultaneously, providing both mechanical and electrical interlocking between the two devices. It is fitted between paired contactors to protect against phase-to-phase short circuits in reversing or changeover applications. Typical use is in motor control panels where two contactors must never be energised at the same time.
| Range of product | TeSys Deca |
| Range | Linergy |
| Product name | FT |
| Device short name | LA9D |
| Product or component type | Mechanical interlock |
| Accessory / separate part | Interlocking accessory |
| Interlocking type | Electrical and mechanical |
| Poles description | 3P 4P |
| Electrical circuit type | Changeover Reversing |
| Range compatibility | TeSys TeSys D contactor TeSys TeSys Deca |
| Product compatibility | LC1D115 LC1D150 |
| Warranty | 18 months |
| Unit Type of Package 1 | PCE |
| Number of Units in Package 1 | 1 |
| Package 1 Height | 8.200 cm |
| Package 1 Width | 9.600 cm |
| Package 1 Length | 23.000 cm |
| Package 1 Weight | 294.000 g |
| Unit Type of Package 2 | P06 |
| Number of Units in Package 2 | 105 |
| Package 2 Height | 75.000 cm |
| Package 2 Width | 60.000 cm |
| Package 2 Length | 80.000 cm |
| Package 2 Weight | 44.080 kg |