TDA 1.3-100-3-A00 Bosch Rexroth Indramat
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MPN: R911258390
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The Bosch Rexroth Indramat TDA 1.3-100-3-A00 is part of the TDA Main Spindle Controllers series and has a current rating of 100 A with a continuous effective current of 70 A. This vertical-mount controller features air cooling inside the control cabinet, a DC bus rated voltage of 300 VDC, and weighs 10.5 kilograms. It is designed for environments up to 55 degrees Celsius and an altitude of 1000 meters, with IP10 protection.
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Product Description:
The TDA 1.3-100-3-A00 main spindle controller is manufactured by Bosch Rexroth Indramat as part of the TDA Main Spindle Controllers series. It converts the constant-voltage power of a machine-tool supply into regulated three-phase output for spindle motors. By modulating current in real time, the device keeps shaft speed aligned with programmed feed rates, supporting accurate metal-cutting, drilling, and grinding sequences in automated production cells. This control behavior helps the spindle respond smoothly to changing load conditions during speed-regulated machining tasks.
Electrically, the unit is rated for a maximum armature current of 100 A, while the continuous effective current is limited to 70 A so that internal temperature remains within acceptable operating limits. A common DC bus of 300 VDC supplies the power stage, and spindle velocity is commanded through an Analog ±10 V signal from the numerical control. Protection against accidental contact is provided by the IP10 enclosure rating. Auxiliary circuits are supported by a 24 V line that can deliver 1.4 A, and the internal ±15 V test points draw 160 mA for diagnostic equipment. Cooling air is pulled from inside the control cabinet, and an 80 mm clearance zone above and below the heatsink must be maintained. This layout requires unobstructed cabinet airflow so heat can move away from the power section during sustained spindle operation. No additional encoder or fieldbus interface is provided, which keeps the wiring arrangement straightforward.
The housing is intended for Vertical mounting, and the assembly mass is only 10.5 kg, allowing manageable handling during installation and service. Continuous operation is permitted up to an ambient temperature of +55 °C, provided cabinet airflow is not restricted. The electronics conform to humidity Class F, making the controller suitable for workshops where relative humidity is high but non-condensing. Reliable operation is specified up to 1000 m above sea level, and output current must be reduced at higher elevations.
Frequently Asked Questions about TDA 1.3-100-3-A00:
Q: What is the DC bus rated voltage for the TDA 1.3-100-3-A00 spindle controller?
A: The TDA 1.3-100-3-A00 spindle controller supports a DC bus rated voltage of 300 VDC.
Q: What is the maximum current rating of the TDA 1.3-100-3-A00?
A: This controller features a current rating of 100 A, enabling high current applications in industrial settings.
Q: What is the maximum ambient temperature for safe operation of the TDA 1.3-100-3-A00?
A: The TDA 1.3-100-3-A00 is designed to operate up to a maximum ambient temperature of +55 °C.
Q: What level of protection does the TDA 1.3-100-3-A00 offer?
A: This model provides IP10 protection, offering basic safeguarding against large foreign objects.
Q: How should the TDA 1.3-100-3-A00 be mounted and cooled?
A: The TDA 1.3-100-3-A00 must be installed in a vertical orientation and cooled by air inside the control cabinet.
