Siemens 6SL3210-1KE21-3UF1

We installed the Siemens 6SL3210-1KE21-3UF1 on the paper cutter. Quanzhou Xin Yuan Technology has the price. Compared to the old part, the cutting length is more accurate, the paper breaks neatly, and the noise is also lower.

Significant Identification

The Siemens 6SL3210-1KE21-3UF0 is immediately recognizable as having ample components. The nameplate is laser-engraved and feels textured when touched. The wiring panel is indeed very convenient. The terminals have color coding for easy identification and the X200 port is designed to face downwards, preventing the gray material from getting in. Unlike previous brands, this one doesn't have easily-damaged characters and has remained as good as new after several years of use. When working, there's no need to squint to look for the model.

Comprehensive indicators

The Siemens 6SL3210-1KE21-3UF0 drive has a power output of 0.37kW, with an input voltage range of 380-480V three-phase and an overload capacity of up to 150% for 60 seconds. On the test bench, we measured that the output frequency adjustment range is 0-550Hz, and its control algorithm still maintains high torque linearity at low speeds. Compared with the old analog control, its vector response speed has increased by 30%, and the current fluctuation is extremely small. The internal structure of the heat sink has been optimized, and the temperature rise during full-load operation is only 45 degrees Celsius. The hard indicators fully meet the requirements of heavy-load working conditions.

On-site implementation

After installing the equipment on the packaging machine conveyor belt, the Siemens 6SL3210-1KE21-3UF0 started smoothly without any shock or vibration. Previously, we used generic frequency converters, and the conveyor belt often got stuck, causing material accumulation. After replacing with this model, the acceleration time was set to 2 seconds, and the tension of the conveyor belt during startup was very uniform. We conducted a continuous 72-hour test on-site and did not encounter a single overheating trip. Its actual carrier frequency is defaulted at 4kHz, and the motor operates with a very dull sound, significantly improving the electromagnetic noise environment in the workshop.

Market Legend

The reason why this product has a good reputation in the industry is clear. Many experienced electricians have specifically chosen to use it. It doesn't break easily even when being used on construction sites with frequent impacts and collisions. Some machines that have been in use for seven or eight years can still be used after being disassembled and washed. Compared to cheaper products, it is not fragile and rarely experiences malfunctions or errors without reason. People often talk about it in private and praise it as a metal block - reliable and durable.