KDV1.3-100-220-300-W1-115 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat KDV1.3-100-220-300-W1-115 is a supply module from the KDV Supply Modules series. It operates with a continuous current of 100 Amps and a DC bus voltage of 300 VDC. The unit supports an input voltage of 220 VAC and has a power rating of 30 kW, with a bleeder continuous power of 2 kW and peak bleeder power of 40 kW.
Internal Product Review
The KDV1.3-100-220-300-W1-115 is a Bosch Rexroth Indramat supply module rated at 30 kW with 220 VAC input. Strong current handling is a standout, with 100 A continuous current and 300 A peak current for short-duration demand. The bleeder section adds excellent energy management through 2 kW continuous power and 40 kW peak power, making this module a very capable DC bus supply solution.
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Product Description:
The KDV1.3-100-220-300-W1-115 is a regulated DC supply module produced by Bosch Rexroth Indramat for the KDV Supply Modules series. Designed for multi-axis servo drive groups, it converts three-phase line power into a stabilized intermediate circuit and shunts excess regenerative energy through an internal bleeder. In automated machine tools and handling systems, the unit maintains the DC bus voltage for connected drive controllers so motion axes share a common power source and feedback energy is returned safely to resistive elements.
It accepts a mains input of 220 VAC, and the power section is rated for 30 kW of continuous output while remaining within a mains tolerance of ±10%. Internally, it creates a DC link of 300 VDC with the same ±10 % bus tolerance, supplying up to 100 A of continuous current to downstream inverters and 8 A on the auxiliary +24 V rail for control electronics. Ancillary demands are low; auxiliary power consumption is 500 VA, and the dedicated ventilation circuit draws only 15 VA from the cabinet. An integral fan, powered from 115 VAC, forces air through the heat sinks, limiting power loss inside the cabinet to 150 W; another 2000 W is expelled to the surrounding enclosure through the cooling airflow.
During dynamic braking or back-feeding, the module can sustain a peak current of 300 A for 300 ms, and its resistor bank dissipates up to 40 kW of instantaneous energy while handling 2 kW continuously. The bleeder section is sized to absorb a maximum feedback energy of 60 kWs, preventing the DC link from exceeding allowable limits when connected axes decelerate abruptly. These short-term absorption capabilities complement the continuous ratings described above, ensuring voltage stability and controlled thermal behavior when the drive system undergoes rapid reversals, emergency stops, or high-inertia load dumping.
