Description
Product Core Brief
- Model: 3500/15 (Part: 106M1079-0)
- Brand: Bently Nevada
- Series: 3500 Machinery Protection System
- Core Function: Provides primary power to the 3500 rack backplane.
- Product Type: Universal AC Power Supply Module
- Key Specs: 85-264 Vac rms | Universal Input | Front Panel LED
- Condition: New Original (New Surplus)
BENTLY 3500/15 106M1079-0
Product Introduction
BENTLY 3500/15 106M1079-0 is a Universal AC Power Supply Module designed for the Bently Nevada 3500 Machinery Protection System. It converts standard AC line voltage into the internal DC voltages required by all modules in the 3500 rack.
The 106M1079-0 is an upgraded universal power module capable of accepting a wide range of global AC voltages (85 to 264 Vac rms) at 47 to 63 Hz. It is typically installed in the upper slot of the 3500/15 power supply position. For critical applications, a second power supply can be installed in the lower slot to provide redundant, hot-swappable power.
Key Technical Specifications
- Module Type: Universal AC Power Supply
- Input Voltage: 85 to 264 Vac rms (Universal)
- Frequency: 47 to 63 Hz
- Max Input Current: 2.3 A rms (at high voltage), 4.5 A rms (at low voltage)
- Indicators: Front panel “Power OK” LED
- Grounding: Single-point ground switch (Open/Closed)
- Protection: Over-voltage protection (blows internal PIM fuse)
- Compatibility: 3500 Rack (Requires 106M1081-01 Backplane/Power Input Module)
Quality Control Process (Engineer’s Perspective)
- Incoming Verification: Trace source via serial number. Inspect front panel and rear connectors for physical damage.
- Visual Inspection: Verify the single-point ground switch position and internal fuse integrity.
- Live Functional Test: Apply 120 Vac and 240 Vac to verify universal input operation. Confirm “Power OK” LED illuminates.
- Output Voltage Test: Measure backplane DC rail voltages to ensure they are within OEM tolerance.
- Final QC & Packaging: Seal in anti-static bag. Apply QC Passed label with date.
BENTLY 3500/15 106M1079-0
Replacement Pitfall Guide
❗ Backplane Mismatch: The 106M1079-0 is the front panel/power module. It must be paired with the correct backplane/power input module (typically 106M1081-01). Do not mix with older legacy PIM backplanes (e.g., 125840-01/02).
❗ Redundancy Rules: If installing dual power supplies, both modules must be identical, and the single-point ground switches on both must be set to the exact same position (both OPEN or both CLOSED).
❗ Grounding Loops: The power module features a grounding switch. If the system is grounded elsewhere (e.g., via an external security ground), this switch MUST be set to OPENED to prevent ground loops.
❗ Over-Voltage Damage: While the module has over-voltage protection, a severe spike will blow the internal fuse to protect the rack. A blown fuse indicates a dead module requiring replacement.
❗ Hot-Swapping: Dual power supplies are designed for hot-swapping. Never remove the only power supply in a running rack without taking the system offline.
Keep these in mind and you’ll cut 90% of rework time.
Compatibility Matrix & Benchmarks
- 3500/15 106M1079-0 → 3500/15-05-05-00 : Direct — Standard dual universal AC configuration
- 3500/15 106M1079-0 → 3500/15-05-00-00 : Direct — Single universal AC configuration
- 3500/15 106M1079-0 → 127610-01 : Incompatible — Legacy non-universal AC power module
Benchmarks:
- Power OK LED Response: < 2 seconds upon power-up
- Ground Switch Resistance: < 0.1 Ω (Closed), > 1 MΩ (Open)
