Technical information

2.4.4.1.5 Electrical
 Model 8516001: 90 to 137 Vac, 47 to 63 Hz
 Model 8516002: 90 to 265 Vac, 47 to 63 Hz
 Model 8516004: 180 to 265 Vac, 47 to 63 Hz.
Note:
The higher level of humidity for shipping allows for condensation, but not
direct contact with moisture.
PS/2 Displays Maintenance Manual
Electrical
¦ Copyright IBM Corp. 1993
2.4.4.1.5 - 1