MAX300-RTG: Installation Manual Hardware Installation
26
AC Power Requirements
The MAX300-RTG has three power input voltage options available – 230VAC
50/60 hz, 115VAC 60 hz, and 115VAC 50/60 hz. As shown in Figures 6 through
9, the 230VAC model will require a single dedicated 20 Amp circuit, while the
115VAC models require TWO independent 20 Amp circuits. Electrical power &
signal wiring must be consistent with EN/IEC 60069-14, the NEC, or other
national or local codes as appropriate.
For power connections to the unit, wire suitable for use at a temperature of 80°C
or higher must be used.
Power connections to Zone 1 or Div 1 units (pxb/X purge) are made within the
flameproof box on the side of the pressurized enclosure. Approved, sealed glands
and conduit must be used. Refer to figures 1,3,8, and 9.
A manual or automatic power disconnect that removes power from the unit is
required to be installed near the unit. The disconnect must be suitable for the area
classification.
Cable/conduit glands used for power and communications entry into the unit must
be sealed to maintain overpressure in the enclosure. They must have a minimum
IP rating of 4X, and must be in compliance with local and national regulations.
Refer to Figures 8-12.