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Chapter 1 Installation and Preparation
RMX-4120/4121/4122/4123 (750 W Models)
Necessary Cable
• North America—Extra Hard Usage Cord, min. 300 V, 60 C, 14 AWG, 3 Conductor cord,
3 m or less, with a NEMA 5-15P to C14.
• Europe—HAR Marked, min. 300 V, 60 C, 2.5mm
2
, 3 Conductor cord, 3 m or less, with a
plug configured for the country of use to C14.
• International—Certified for country of use, min. 300 V, 60 C, 2.5mm
2
, 3 Conductor cord,
3 m or less, with a plug configured for the country of use to C14.
The power cord can be used to disconnect the RMX programmable power supply from the
AC power line in an emergency. Connect the plug to an easily accessible power outlet so that the
plug can be removed from the outlet at any time. Be sure to provide adequate clearance around
the power outlet.
1. Check that the AC power line meets the nominal input rating of the product. The product
can receive a nominal line voltage in the range of 100 VAC to 240 VAC at 50 Hz or 60 Hz.
2. Check that the POWER switch is turned off.
3. Connect the power cord to the AC inlet on the rear panel.
4. Insert the power plug into a grounded outlet.
RMX-4124/4125/4126/4127 (1500 W Models)
Caution Risk of electric shock. Before you connect the power cord, turn off the
switchboard breaker (a switch that cuts off the power supply from the switchboard).
Risk of fire. Connection to the switchboard must be performed by a person who has
knowledge about electrical safety standards and the electrical aspects of regulated
DC power supplies. The switchboard breaker must meet the requirements shown
below.
Caution Inside the product, protective circuits are connected to match the polarity
of the input terminal. Be sure to connect the L, N, and (GND) terminals of the product
to the matching terminals on the switchboard.
In an emergency, turn off the switchboard breaker to disconnect the product from the AC power line.
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