AMETEK DLM 600W Series - Manual (Page 32)

DLM 600W Series
M362161-01 K 2-8
2.6 Input Power Requirements
The unit will operate from an AC power source rated at 90–132 VAC and 180–264 VAC,
at 47–63 Hz. The AC input voltage range is automatically selected by the unit at power–
up; no user setup is required.
CAUTION
Exceeding the maximum rated AC input voltage could result in
damage to the unit.
An IEC connector is provided on the rear panel for connecting the unit to the AC
power source with a power cord; the IEC connector also provides the safety ground
termination. The power cord supplied with the unit has a safety ground wire that
connects the enclosure of the unit to the safety ground of the AC power source. This
connection is automatically made when the power cord is plugged into an appropriate
AC receptacle.
WARNING
Operating the unit with the safety ground wire of the power cord
disconnected could result in a shock hazard.
2.7 AC Line Fuses
Fuses are provided for both lines of the AC input, and are located internal to the
enclosure on the main circuit board near the AC input connector. They have time–delay
characteristics, and are rated at 20A/250VAC. The fuses are sized to provide fault
isolation, and should not require replacement during normal operation. If the fuses
open, replacement should be done by qualified personnel to determine whether a fault
condition exists. Refer to Table 5–2 for fuse ratings.
WARNING
To prevent electrical shock, disconnect the AC power cord before
checking the internal fuses. Operating with fuses of improper rating
could result in a fire hazard.
2.8 AC Input Disconnect Device
The front panel POWER switch does not disconnect the AC input line from the unit.
Ensure that access is provided to the rear panel IEC AC input connector or the plug of
the line cord. For rack mount applications, ensure that a suitable disconnecting device
is incorporated that will provide isolation from the AC input source.