Brand: Bently Nevada Description: 129478-01 Condition: Brand New Certificate: COO TEST REPORT WARRANTY LETTER Warranty: 1 year Inventory Qty: 8 Payment Term: T/T Shipping Port: Shenzhen Bently Nevada 129478-01 Designed for older Bently Nevada rack installations requiring high-voltage DC excitation (±300 V to ±500 V) for specialty sensors or barrier networks
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Manufacture |
Bently Nevada |
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Model Number |
129478-01 |
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Ordering Number |
129478-01 |
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Catalog |
3500/15 |
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Description |
Legacy High Voltage DC Power Input Module |
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Country Of Origin |
USA |
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HS CODE |
85389091 |
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Dimension |
2*11*3 (CM) |
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Weight |
0.4 kg |
Ordering Information
3500/15 Power Supply Module
3500/15 -AA-BB-CC
A: Power Supply Type (Top Slot)
03 Legacy High Voltage DC (88 to 140 Vdc)
04 Legacy Low Voltage DC (20 to 30 Vdc)
05 Universal AC Voltage (85 to 264 Vac rms)
06 High Voltage DC Supply
07 Low Voltage DC Supply
B: Power Supply Type (Bottom Slot)
00 No Supply (Used when no supply is required)
03 Legacy High Voltage DC (88 to 140 Vdc)
04 Legacy Low Voltage DC (20 to 30 Vdc)
05 Universal AC Voltage (85 to 264 Vac rms)
06 High Voltage DC Supply
07 Low Voltage DC Supply
C: Agency Approval
00 None
01 CSA / NRTL / C (Class 1, Division 2)
Technical Parameters
Input Voltage: 24 V DC via rack backplane for Bently Nevada 129478-01
Output Voltage: +400 V DC nominal
Load Current: up to 25 mA total in Bently Nevada 129478-01
Regulation: ±10 % under varying load and input conditions
Ripple & Noise: ≤ 500 mV p-p (0–10 kHz)
Protections: overcurrent shutdown, thermal-trip, reverse-polarity clamp
Isolation: 1.5 kV DC input-to-output; 1 kV output-to-chassis
Efficiency: ~ 75 % at half load
Indicators: front-panel “HV OK” LED and “Fault” LED
Operating Temperature: 0 °C – 65 °C; Humidity to 95 % RH non-condensing
Product function
Converts the rack’s 24 V DC bus using Bently Nevada 129478-01 into a regulated high-voltage DC rail for powering legacy high-voltage sensors, barrier networks, or charge amplifiers. Provides on-board fault detection and front-panel status indication, reducing the need for external HV supplies.
Application Areas
Legacy Turbine & Compressor Panels: Supplying HV excitation to older Proximitor® preamplifiers via Bently Nevada 129478-01.
Barrier Networks: Driving high-voltage zener-barrier arrays in Zone 2/Div 2 installations.
Charge-Amplifier Sensors: Powering early-generation piezoelectric accelerometer isolators with Bently Nevada 129478-01.
Instrument Test Benches: Bench-testing legacy HV-powered modules through Bently Nevada 129478-01.
