Product Description

TVM1.2-50-220/330-W0/115/220 is a Bosch Rexroth TVM series power supply module. It requires 3-phase AC input at 220 Volts AC. The module supports direct connection to the AC mains. However, TVM modules should not be connected directly to ungrounded AC mains. An isolation transformer is mandatory when using ungrounded AC mains. Failure to follow this protection can lead to electric shock and equipment damage. In some cases, the AC mains voltage will differ from that required by the power module. In these cases, an autotransformer can be used to step up or step down the AC mains voltage. Bosch supplies autotransformers and isolation transformers as optional accessories for TVM modules. Both of these types of transformers are available in foot-mount and wall-mount versions. Autotransformers available with Bosch support maximum 20 kVA ratings. Isolation transformers available with Bosch support maximum 10 kVA ratings. Other accessories for TVM modules include bleeder modules used to increase regenerated power and auxiliary capacitors. Dynamic braking contactors and dynamic braking resistors are also available. Nominal output current of the TVM1.2-50-220/330-W0/115/220 module is 50 Amps. Control electronics on the unit require single-phase AC input at 115 Volts AC or 220 Volts AC. The nominal DC bus voltage is 300 Volts DC. The main power terminals are located at the front of the unit. A touch guard provides protection against accidental contact with power terminals. Weight of the TVM1.2-50-220/330-W0/115/220 is 15 kilograms. Bosch has designed the unit for vertical mounting. Appropriate spacing is necessary for unobstructed airflow around the module. Bosch recommends minimum 80 millimeters spacing on the top and bottom side of the unit. Only trained professionals with relevant experience should work on the module.