Bently Nevada 3500/15-02-02-00 Redundant High Voltage AC Power Input Module 125840-01 
Description：
125840-01 is Bently Nevada 3500/15 power supply High Voltage AC (175 to 264 Vac rms) Power Input Module. 3500/15-02-02-00 is redundant power supply, need 2 sets of 127610-01+125840-01
The 3500/15 Power Supply is a half-height module and must be installed in designated slots on the left side of the rack. The 3500 rack can contain one or two power supplies with any combinations of AC and DC. Either supply can power a full rack. 
When two power supplies are installed in a rack, the one in the lower slot acts as the primary supply, and the other in the upper slot acts as the backup supply. If installed,the second supply is the backup for the primary one. Removing or inserting either power supply module does not disrupt operation of the rack as long as a second powersupply is installed.
The 3500/15 Power Supply accepts a wide range of input voltages and converts them to voltages acceptable for use by other 3500 modules. The following power supplies are available with the 3500 Series Machinery Protection System:
LegacyACPower
Universal AC Power
HighVoltage DC Power Supply
LowVoltage DC Power Supply
125840 is half-height module, ocated directly behind the associated power supply 127610-01.
Input Voltage : 110 to 220 Vac nominal,  85 to 264 Vac rms, 120 to 373 Vac pk
The universal AC Power Supply and Power Input
Module are not compatible with the legacy High
Voltage AC or Low Voltage AC units.
Dimensions: 120.7 mm x 25.4 mm x 114.3 mm
Weight: 0.34 kg