3TC4817-0BP0[DC Contactor]
The Siemens SIRIUS 3TC4817-0BP0 is a size 4 double-pole DC contactor. The main contacts are designed for switching DC circuits. It is rated at 75A for DC-3/DC-5, and the operating coil is AC 230V 50Hz/276V 60Hz. It has 2 normally open and 2 normally closed auxiliary contacts and is suitable for DC motor and DC load control.
Product Positioning
The 3TC4817-0BP0 belongs to the 3TC DC contactor series. The main contacts are designed for switching DC power, while the coil is driven by AC 230V control power. It is suitable for DC motor start-stop, battery systems, electroplating and DC power distribution. When the two main contacts are connected in series, they can be used for DC circuits with a maximum voltage of 750V.
Core Product Advantages and Features
Dedicated DC main contact
The bipolar main contacts are designed for DC arcing. The rated current of DC-1 and DC-3/DC-5 is 75A, which can stably switch DC loads.
Series connection up to DC 750V
When the two main contacts are connected in series, the rated voltage is maintained at 75A from 440V to 750V. The DC-3/DC-5 can control 45kW at 750V.
AC 230V operating coil
The coil operates on AC, with 230V at 50Hz and 276V at 60Hz, and can be directly powered by the AC control power supply inside the panel.
Built-in 2NO+2NC contacts
The 22-type auxiliary switch group (2 normally open and 2 normally closed) provides interlocking, self-holding and status feedback, with a mechanical life of 10 million cycles.