TVM1.2-0050-220/300-W0/115/220 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat TVM1.2-0050-220/300-W0/115/220 is a power supply module from the TVM Power Supply Modules series with a main input voltage of 220 VAC and supports three input phases. It offers a nominal DC bus voltage of 300 V, a continuous output current of 25 A, and uses natural convection for cooling. The module features an IP10 protection rating and operates with an input frequency range of 50 to 60 Hz.
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Product Description:
The TVM1.2-0050-220/300-W0/115/220 belongs to the TVM Power Supply Modules series manufactured by Bosch Rexroth Indramat. It is a regulated power supply designed to convert three-phase mains power into a stabilized DC bus for Indramat drive controllers used in industrial automation. By delivering a controlled DC link, the module supports coordinated motion axes without requiring separate rectifiers, and it also furnishes auxiliary power for the control electronics inside the same cabinet.
On the mains side, the module accepts a 3-phase supply at 220 VAC within a +15/-10% window and operates over the industrial frequency range of 50–60 Hz. Under rated conditions, the line current drawn from the plant network does not exceed 20 A, allowing the unit to be fused and cabled with standard 25 A hardware. Internally, the rectifier and filter network establishes a nominal DC link of 300 VDC, which is the reference voltage shared by the connected servo amplifiers. The type identification 0050 indicates a 50 A design current that sets the thermal layout of the semiconductors and bus bars, while the DC side follows a ±10% tolerance to keep inverter switching within a stable operating range.
The module also features an auxiliary circuit that accepts 115/220 VAC single-phase power and provides logic-level energy for fans, contactors, and the internal monitoring board; this feed is limited to 1 A because only low-power loads are expected. Continuous bus replenishment capability is stated as 25 A, whereas a separate 15 A rating applies to downstream 24 V supplies for I/O rails. Heat is removed exclusively by natural convection, so installation must leave sufficient vertical clearance for rising air. Environmental ingress is limited by the cabinet-style rating of IP10, making the module suitable for closed electrical enclosures.
