Siemens 3VA5170-1MH31-0AA0

The 3VA51 motor circuit protector is a low voltage device designed for reliable motor protection. This model operates at a rated current of 70A and features a thermal-magnetic trip unit, specifically the TM120M variant, which provides adjustable short-circuit protection in the range of 5...12 x In.

With a three-pole configuration, this device is suitable for applications requiring a rated voltage of up to 690 V. It is constructed for fixed installation, with dimensions measuring 3 x 5.5 x 3.7 inches. The design includes a degree of protection rated at IP40, ensuring its resilience in various environments.

This circuit protector does not come with overload protection and lacks integrated earth fault protection. However, it is built with a complete protection unit and can be easily mounted on a DIN rail, providing flexibility in installation. The device operates without a switched-off indicator and utilizes a rocker lever as the control element. The rated short-circuit breaking capacity reaches 70 kA at 400 V and 50 Hz.