Siemens 3RK1301-0CB20-0AB4 Motor Driver Board

The 3RK1301-0CB20-0AB4 serves as a motor driver board for Siemens automation systems. This unit starts and stops motors with integrated overload protection. Its rectangular frame measures 95 millimeters in width. The driver height reaches 70 millimeters exactly. Depth stays at 45 millimeters. You will find this unit weighs approximately 0.28 kilograms. Therefore, installation requires clipping the unit onto a standard DIN rail. One removable terminal block handles all power and control wiring connections.

Physical Layout and Connectors

The terminal block accepts wires up to 14 AWG gauge. Three status LEDs indicate power, run, and fault conditions. A rotary switch allows manual motor start and stop control. Four mounting tabs secure the unit to TS35 DIN rails. You can set the motor current rating using a front dial.

Technical Specifications

Parameter	Specification
Driver Width	95 mm
Driver Height	70 mm
Driver Depth	45 mm
Unit Weight	0.28 kg
Motor Power	0.55 kW to 1.5 kW
Rated Current	1.6A to 6.0A (adjustable)
Supply Voltage	400V AC (3-phase)
Control Voltage	24V DC
Component Total	128 discrete parts
Internal Energy Storage	220 µF capacitor bank
Overload Class	Class 10
Short Circuit Rating	50 kA
Operating Temperature	-20°C to +55°C

Internal Design and Energy Storage

The 3RK1301-0CB20-0AB4 contains exactly 128 discrete components inside. A 220 microfarad capacitor bank filters the control power supply. Three power MOSFETs switch the motor phases directly. The unit includes thermal sensors for overload protection. A microcontroller manages the start and stop timing sequences. LED indicators show current operating status clearly.

Operational Performance

This motor driver board starts and stops three-phase motors up to 1.5 kW. It provides adjustable current settings from 1.6 to 6.0 amperes. Moreover, the unit includes Class 10 overload protection for motors. You can control the driver via 24V DC discrete signals. The module automatically resets after clearing a fault condition. Three LEDs show power, run, and fault status clearly. Consequently, you achieve compact motor control for small machines. Siemens designed this driver for distributed motor applications. Its rugged construction suits conveyor and pump control.

In summary, the 3RK1301-0CB20-0AB4 delivers reliable motor driver performance. Use this unit for small conveyor or fan control. It integrates overload protection in a compact design. Order this motor driver board for your Siemens automation system.