INDRAMAT TVD 1.2-08-03 246503

Indramat TVD 1.2-08-03 Power Supply Module

Description

The Indramat TVD 1.2-08-03 is a robust and reliable power supply module designed for the DIAX series of AC servo drives. This unit converts 3-phase AC input into a stable DC bus voltage required to power multiple servo drive amplifiers. With a power rating of 8 kW, it is suitable for a wide range of demanding industrial motion control applications. As a legacy component, it is essential for maintaining existing machinery that relies on the proven Indramat DIAX platform.

Specifications

• Manufacturer: Indramat (now part of Bosch Rexroth)
• Model: TVD 1.2-08-03
• Part Number: 246503
• Product Type: Power Supply Module
• Rated Power: 8 kW
• Input Voltage: 3 x 380-460V AC (+/- 10%)
• Input Frequency: 50-60 Hz
• DC Bus Output: Approximately 300V DC
• Compatibility: Indramat DIAX Drive Systems

Label Info

• Model: TVD 1.2-08-03
• Part Nr: 246503
• Manufacturing Code: K05/96

Application

This power supply is a central component in CNC machines, packaging equipment, robotics, and other automated systems that utilize Indramat servo motors and drives for precise control of movement and positioning.

Country of Origin

Made in Germany.

CO2 Impact

Opting for this pre-owned power supply module instead of a new one prevents the emission of approximately 480 kg of CO2, which is equivalent to the savings from driving a standard car for over 2400 kilometers.

Availability

This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

What is the difference between the TVD 1.2 and TVD 1.3 models?

The TVD 1.2 series, like this unit, is designed for the DIAX 02 system. The TVD 1.3 series is for the later DIAX 03 system. While they look similar, they are not directly interchangeable due to firmware and communication differences. Always replace a 1.2 with a 1.2.

What does the ‘H3 – MAINS OK’ LED indicate?

The H3 LED confirms that the incoming 3-phase AC power supply is within the correct voltage and phase sequence specifications. If this light is off while the machine is powered, it indicates an issue with the mains power supply to the unit, not necessarily a fault with the TVD itself.

Can I operate this power supply without a braking resistor connected to terminals RB1 and RB2?

It depends on the application. The braking resistor (bleeder) is crucial for dissipating regenerative energy from the motor during deceleration. For applications with high inertia or frequent, rapid braking, a correctly sized external braking resistor is mandatory to prevent overvoltage faults on the DC bus. For simple applications, it might run, but it is highly recommended to use one as specified by the machine designer.

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Last Update: Friday, March 13, 2026