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The Original Contactor 3RT2023 / 2024 / 2025 / 2026 / 2027 / 2028-1BB40 DC24V is a genuine replacement contactor built to original specifications for reliable switching performance in demanding industrial and elevator applications.
The KONE KM89717G03 is a permanent magnet DC door motor designed for the KONE AMD1.0 D1 car door operator system. With a rated voltage of 40VDC and IP40 protection grade, this component serves as the power source that drives elevator car doors to open and close accurately. It delivers smooth, low-noise operation during daily door movements, helping to improve passenger riding comfort.
As one of the key wearable parts in the door system, the motor will gradually wear after long-term cyclic operation. Common symptoms of failure include stuck door action, unusual running noise, intermittent door opening faults, and even complete door shutdown. It is widely adopted as a replacement spare part for passenger elevators in residential apartments, commercial offices, and hotels.
| Description | Elevator contactor |
|---|---|
| Model | 3RT2028-1BB40 |
| Coil Voltage | DC24V |
| Transportation | TNT, UPS, DHL, FedEx, Air, Sea |
| Packages | Carton, wooden case, pallet, etc. |
| Delivery Time | Normally 2–3 working days after payment |
| Warranty | One year |
| Payment Method | Company bank, Western Union, PayPal, etc. |
This KONE door motor maintains stable output performance under continuous working conditions and matches perfectly with the original AMD1.0 D1 door control assembly. It is strictly manufactured to original specifications, ensuring good compatibility during on-site replacement.
For elevator maintenance contractors, this spare part helps quickly resolve door system breakdowns and reduce elevator downtime. Reliable quality reduces repeated maintenance work, making it a preferred stock item for elevator spare part suppliers around the world.