Electrical Requirements; Power Cord; Safety; Branch Circuits And Grounding - IBM 3 User Manual

Electrical Requirements

Use the following tables to plan your site power requirements. The tables list the
voltage inputs, grounding, plugs, and receptacles necessary for your new printer.
All voltages are single-phase.
Nominal Operation Voltages

Power Cord

Place the printer so the power cord can plug into the power receptacle without
putting stress on the power cord. The standard power cord length in the U.S. and
in all other countries is 2.74 m (9 ft). A 1.83 m (6 ft) power cord is also available in
the U.S.

Safety

Safety is a major consideration in the design and manufacture of IBM products.
Proper electrical grounding is essential for safety and for reliable operation of the
printer. If you have any questions about the grounding of your receptacle, ask your
electrician.

Branch Circuits and Grounding

A machine must be properly grounded. It is recommended that an insulated
green-wire ground, the same size as the phase wire, be installed between the
branch circuit panel and the receptacle.
For personal safety, the ground should have sufficiently low impedance to limit the
voltage to ground and to facilitate the operation of circuit protective devices in the
circuit. For example, the ground path must not exceed 1 ohm for 120-volt,
20-ampere branch circuit devices.
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4247 Model 003 User's Guide
Countries
United States, Canada
Central and South American,
and Far Eastern
European, Middle Eastern,
and African
100 V to 127 V 50 or 60 Hz
X
X
Saudi Arabia, only
200 V to 240 V 50 or 60 Hz
X
X