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5. High-Voltage Power Interface
5.1. Overview
The High-Voltage Power Interface connects directly to high-voltage and high-current components. It
accepts an external power input, provides power conditioning for all Nuvation Energy BMS modules
and power for the contactors. The Stack Controller controls all operations on the Power Interface via
the Stack Bus.
There is only one model of the Power Interface, the NUV100-PI-HE.
5.2. Mechanical Dimensions
The overall dimensions of the Power Interface are 174.40 mm X 121.58 mm X 48.60 mm.
It comes standard with DIN clips that enable the Power Interface module to be securely mounted to
EN50022-compliant DIN rails. The clips add an extra 19.6 mm to the overall width of the Power
Interface, bringing it from 174.40 mm to 194 mm. The clips also hold the module approximately 7
mm away from the inside lip of the DIN rail.
Extra space should be provided around the module to allow for easy installation/maintenance.
The Power Interface can contain high-voltage signals. It is possible to have signals
1250 V DC away from earth ground. Care must be taken when mounting the PCB
into a metal enclosure to ensure the metal walls remain the correct distance from the
exposed conductor on the PCB. Using the 1250 V DC as an example, the metal walls
must be at least 4.2 mm from the nearest exposed conductor and not touch the PCB
or any component on the PCB, including the connector housings.
The Power Interface weighs approximately 915 g.
Document ID: NE-IG-001
Nuvation Energy High-Voltage BMS - Installation Guide
27
Rev 2.1, 2020-03-13
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