BV7032-0,5
Siemens Siprotec® Series Auxiliary DC Voltage Supply Module (Model: BV7032-0,5)
(Model Naming Interpretation:
- BV: Core product line prefix for Siemens’ “Auxiliary Voltage” modules, denoting compatibility with Siprotec® 7-series protection relays (7SJ, 7SK, 7UT) and membership in the Siprotec® auxiliary component family.
- 7032: Hardware configuration code; “70” specifies design for MV substation applications (up to 36 kV), “32” indicates dual-output capability and compliance with IEC 61850-3 (substation automation standards).
- 0,5: Output power rating suffix; denotes 0.5 A maximum continuous output current (sufficient for powering a single protection relay and 2–3 auxiliary sensors).
- Core Positioning: The “reliable power hub for Siprotec® relays,” delivering stable, isolated DC power to safety-critical protection devices—essential for ensuring MV switchgear protection loops remain operational during grid voltage fluctuations or transient events. )
2. Product Description
The BV7032-0,5 is a dedicated auxiliary DC voltage supply module developed by Siemens for the Siprotec® family of MV power system protection relays, widely used in distribution networks, industrial plants, and renewable energy facilities


