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The 3300/12 is the primary power supply module for the Bently Nevada 3300 Machinery Protection System (MPS). It converts facility AC line power into regulated DC voltages for the rack backplane, providing stable, low-noise power to all connected vibration, thrust, and temperature monitors.
Equipped with surge protection, EMI filtering, and diagnostic LEDs, the 3300/12 ensures uninterrupted machinery protection logic, even under line fluctuations. It is essential for any 3300 series installation and occupies the dedicated power slot in the system rack.
| Specification | Description |
|---|---|
| Model Designation | 3300/12 |
| System Family | Bently Nevada 3300 Series |
| Input Voltage Options | 115 VAC (85–132 VAC) or 230 VAC (170–264 VAC), 47–63 Hz |
| Output Voltages | Regulated DC for rack backplane (+5 VDC, -24 VDC, etc.) |
| Surge Protection | Metal-oxide varistors (MOVs) and line filtering |
| Front Panel Indicators | Power "ON" LED; System "OK" status |
| Environmental Tolerance | Continuous industrial operation |
| Dimensions | 5 cm x 20 cm x 33 cm |
| Weight | 1.36 kg |
| Mounting | Dedicated power supply slot in 3300 rack |
Provides backplane power for all Bently Nevada 3300 modules.
Used in turbine, compressor, and pump protection across petrochemical, power generation, and industrial facilities.
Acts as the foundation for machinery protection logic in critical equipment monitoring.
Can redundant power supplies be used in a 3300 rack?
The 3300/12 is designed for a single module per rack. For critical applications, external UPS systems are recommended to maintain stable AC input.
What happens if an internal fuse blows?
User-replaceable fuses are located behind the front panel. If a fuse fails:
The Power LED turns off.
The System OK relay changes state, alerting the control room that protection for the rack is compromised.