HEIDENHAIN UVR170D Power supply 125kW Id.Nr. 807429-01

Buy online your HEIDENHAIN UVR170D Power supply 125kW Id.Nr. 807429-01 reference UVR170D from our US e-store Cnc-shopping USA, specialist in CNC machine-tools spare parts.

The HEIDENHAIN UVR170D is a high-capacity regenerative power supply used in HEIDENHAIN TNC controlled systems to feed the DC-link of associated LE power modules and the logic rack. It stabilizes the common DC bus, returns excess braking energy to the mains through its integrated regenerative inverter, and supports large axis groups on heavy machine tools. This unit is commonly sourced as a replacement unit for service, retrofit and maintenance operations where reliable DC-link power and energy recovery are required.

Designed around a three-phase 400 V AC input at 50/60 Hz, the UVR170D delivers a nominal 125 kW with 180 kW peak capability for short overload demands during acceleration or spindle ramp events. Its output provides a stabilized 565 V DC common bus used by LE modules and logic electronics within the HEIDENHAIN cabinet. The integrated fan ensures proper thermal management under continuous industrial duty.

As part of the UVR 1x0D family, this supply aligns with HEIDENHAIN cabinet architecture where the UVR handles DC-link generation and regeneration, while LE modules feed individual axes and spindles. Typical applications include medium to large machining centers, grinding machines and production lines requiring a stable DC bus with regenerative capability. The ID.Nr. 807429-01 identification ensures correct matching during field replacement and parts sourcing.

Reference: UVR170D

Manufacturer: HEIDENHAIN

Product type: HEIDENHAIN TNC Controls - Digital Readout

Main function: Regenerative DC-link supply for HEIDENHAIN cabinets powering logic modules and LE power modules

Applications: HEIDENHAIN TNC-driven machine tools requiring a common DC bus with regeneration, including retrofits and service replacements on high-power axis and spindle groups

Key technical data: Three-phase 400 V AC, 50/60 Hz input. Rated power 125 kW with 180 kW peak. Integrated regenerative inverter. Nominal DC bus 565 V DC. Cooling fan fitted. Part identification ID 807429-01. UVR 1x0D series used with HEIDENHAIN LE power modules and logic units.

In the field, technicians use the UVR170D as a drop-in replacement for failed UVR supplies to restore the cabinet DC bus and get axes and spindle drives back online. Keeping a stocked spare is common practice on older HEIDENHAIN installations where downtime risk is high. This model suits preventive maintenance plans and supports retrofit work when the original UVR is no longer reliable.

Each unit is tested on dedicated HEIDENHAIN test benches or simulators by skilled engineers for DC-link stability and regenerative behavior, then packed for industrial shipment. A functional warranty covers the supplied unit. Many stocked items ship directly from our Florida facility, with fast dispatch depending on availability. Typical handling for this reference is shipment within 3 days.

For legacy controls or obsolete part replacements, Cnc-shopping USA can support urgent needs with emergency spare sourcing, repair service, or a refurbished unit when available. Maintaining compatible UVR supplies keeps older TNC systems productive and reduces unexpected machine downtime.

Frequently asked questions about UVR170D:

What systems commonly use the UVR170D?
It is used in HEIDENHAIN cabinets where the UVR provides the DC-link for LE power modules and logic units in TNC-controlled machines. It suits medium to large machines that require regeneration during braking.

Is the DC bus voltage compatible with existing LE modules?
The unit provides a nominal 565 V DC common bus, which is the expected DC-link level for LE power modules in the associated HEIDENHAIN architecture.

What mains supply does the UVR170D require?
It is designed for three-phase 400 V AC at 50/60 Hz. Ensure the cabinet supply conforms to this rating and that upstream protection is sized accordingly.

Does the UVR170D handle regenerative braking energy?
Yes, it includes an integrated regenerative inverter that feeds excess energy back to the mains, which helps avoid frequent braking resistor loading in high-inertia stops.

Is cooling integrated or external?
The supply is fitted with an integrated cooling fan. During service checks, verify airflow paths and cabinet filters to maintain correct thermal performance.

How do I confirm part matching before a field replacement?
Verify the cabinet labeling and confirm the ID.Nr. 807429-01 on your installed unit or documentation. Matching the series and ID number helps ensure a straightforward drop-in replacement.