3RB2163-4MC2
The 3RB2163-4MC2 is a solid-state overload relay from the SIRIUS 3RB21 standard series. It has an adjustable current range of 160~630A, is suitable for S10/S12 housings, features a main circuit with a drain bus connection and auxiliary circuit screw terminals, built-in ground fault detection, and supports manual/automatic reset.
Product Positioning
The 3RB2163-4MC2 is a solid-state overload relay from the Siemens SIRIUS 3RB21 standard series. It has an adjustable current range of 160~630A, is suitable for S10/S12 high-current housings, and has a built-in ground fault detection function, making it suitable for motor applications with high protection accuracy requirements.
Core Product Advantages and Features
Wide current adjustable range
The current setting range is 160~630A, covering the overload protection requirements of large motors.
Escape level adjustable from 5 to 30E
The tripping level can be flexibly adjusted according to the motor's starting characteristics (light load or heavy load start).
Built-in ground fault detection
It has an internal grounding fault detection function, which enhances the abnormal protection capability of the motor circuit.
Drain main circuit connection
The main circuit uses a busbar connection method, while the auxiliary circuit uses screw terminals for easy installation and wiring.
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