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The 125840-01 is a key component of the Bently Nevada 3500 series vibration monitoring system, primarily used to provide a stable power supply for the entire system and ensure reliable operation in industrial environments.
AC Power
High Voltage DC Power Supply
Low Voltage DC Power Supply
The 3500 Power Supplies are half-height modules and must be installed in the specially designed slots on the left side of the rack. The 3500 rack can contain one or two power supplies (any combination of ac and/or dc) and either supply can power a full rack. If installed, the second supply acts as a backup for the primary supply. When two power supplies are installed in a rack, the supply in the lower slot acts as the primary supply and the supply in the upper slot acts as the backup supply. Removing or inserting either power supply module will not disrupt operation of the rack as long as a second power supply is installed. The 3500 Power Supplies accept a wide range of input voltages and converts them to voltages acceptable for use by other 3500 modules.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Bently Nevada 125840-01High Voltage ac Power Input Module Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Thermal Power
Ensures steady power to the vibration monitoring chassis that tracks steam turbines, generator shafts, and critical boiler feed pumps.
Oil and Gas
Powers the condition monitoring racks on offshore drilling platforms to safeguard critical subsea mud pumps and high-pressure injection pumps.
Pulp and Paper
Protects the 3500 power supply loop from local electrical noise to ensure uninterrupted monitoring of high-speed paper machine drying cylinders and refiners.
Nuclear Power
Serves as a highly reliable, redundant power source for the safety-grade machinery protection system monitoring the primary coolant pumps and main turbines.
Hydroelectric Power
Sustains power to monitor shaft runout, thrust bearing vibrations, and stator conditions in large vertical hydraulic turbine-generator sets.
When using the 125840-01 module, keep these key points in mind. Safety first—always cut off the external 175-264 Vac high voltage and secure the insulation cover before wiring or changing fuses. Strict pairing—it must be used together with the front-slot 127610-01 AC main power module. For dual redundancy—ensure the two input modules are wired to separate, independent grid sources to guarantee uninterrupted operation.
It receives external high-voltage AC power and safely routes it into the 3500 rack power supply modules.
Where should the 125840-01 be installed?
It must be installed at the rear of the designated power supply slots on the left side of the 3500 rack.
Does the 125840-01 support redundant configuration?
Yes, two PIMs can be installed in a rack to achieve primary and backup redundancy.
Will an undervoltage condition damage the 125840-01?
No, an undervoltage condition will not harm either the PIM or the power supply.
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Disclaimer: We are not an authorized distributor or distributor of the product manufacturer of this website, The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because our company is not an authorized distributor of this product, the Original Manufacturer`s warranty does not apply.While many DCS PLC products will have firmware already installed, Our company makes no representation as to whether a DSC PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Our company also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from our company, its distributors, or any other source. Our company also makes no representations as to your right to install any such firmware on the product. Our company will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.
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