EXAIR 7940 Installation & Maintenance

11510 Goldcoast Drive ▪ Cincinnati, OH, USA 45249-1621
(513) 671-3322 ▪ FAX (513) 671-3363 ▪ E-mail: techelp@exair.com
HIGH VOLTAGE POWER SUPPLY INSTALLATION & MAINTENANCE
Power Supply cord - 6ft. (1.8m) long
(4) 37/64 (14.7mm) mounting holes
The Power Supply Should Not Be Used In An Explosive Or Flammable Area.

ELECTRICAL SUPPLY

The Model 7940 Power Supply requires a 115V, 50/60Hz power source. Model 7941 requires a 230V, 50/60Hz. The
Model 7940 must be plugged into a grounded receptacle. If the unit is not grounded, it will produce a shock and will
not function properly.
The power cord of the Model 7941 Power Supply has a green ground wire that must be connected to a grounded
source. Additional grounding can be obtained by attaching a ground wire between a grounded metal surface and the
grounding terminal of the power supply.

MOUNTING

Mounting flanges are provided at the base of each power supply. The power supply can be bolted to the machine frame
for uniform grounding. If grounding cannot be obtained through the machine, it is best to connect to earth ground
through a grounding rod or copper cold water system.
Models 7940 and 7941
"On-off" switch
(lighted)
Model 7940:
Input Voltage: 115VAC
Input Current: .2 A max.
Frequency: 50/60 Hz
Output Voltage: 5,000 V rms
Output Current: 5 mA max.
Grounding terminal

SPECIFICATIONS

(4) 7/16 - 14 high voltage output
connectors
Model 7941:
Input Voltage: 230VAC
Input Current: .1 A max.
Frequency: 50/60 Hz
Output Voltage: 5,000 V rms
Output Current: 5 mA max.
©2007 EXAIR Corporation
LIT 7118