Part Number: TDB2U201 3-30s Manufacturer: Nieaf Smitt Part Series: TDB2U2 Electronic plug-in railway timer-relay, 24 Vdc, 2 x change-over contacts, less height than the TDB4 relay, time delay is fixed at 3-30s. Available to Order Quantity × 1 Item added to your Quotation Basket TDB2U201 3-30s Nieaf Smitt Your Quotation Basket Items: 2