1. 3ND1 820 is a type of twelve-pole contactor from Siemens. It is suitable for motor and lighting loads of up to 7.5 kW and 11 kW respectively. The contactor has a built-in overload relay with adjustable settings and a standard auxiliary contact block. It is also made out of a highly durable plastic material to provide reliable operation in a range of different environments.
2. The 3ND1 820 features a large width of 22.5mm, which enables plenty of wiring space. This allows wires to be easily connected without needing to strain or twist them. The contactor also has a wide range of construction and performance specifications, backed up by a 25A rating and a VDE/EN/IEC rated diode.
3. Additionally, the 3ND1 820 is constructed with an encapsulated coil, which allows for maximum protection against dust, steam, and water. Siemens has done extensive testing with this product to ensure its reliability in commercial, residential and industrial applications. The contactors are also CCC rated, ensuring they meet safety and performance requirements in China.