The Power Supply unit(s) shall be Alpha Communications® / S.T.R.™ QwikBUS™ model NG333, or approved equal. The NG333 shall be built into a rugged high impact Grey ABS plastic case, and shall be powered a contractor supplied power cord.
Low voltage wiring shall be used and positive screw terminal and plug-in connectors shall be provided for installation wiring. The NG333 shall be mountable right to the surface of the wall or in a customer supplied junction box cabinet (model# CEC152 or equivalent).
The Alpha Communications® / S.T.R.™ NG333 Power Supply is used only with the 4-wire QwikBUS™ series intercom and/or video-intercom systems. The NG333 provides the regulated power needed to control the SP333 QwikBUS™ intelligent controller.
Each NG333 gets its power from a customer supplied power cord, and will operate on an input of 120VAC.
Height: 3.75" (96mm)
|Construction:||High impact Grey ABS plastic case|
|Connections:||Positive screw terminal and plug-in connectors|
|Mounting:||Surface-mounted (usually installed near the System Central Equipment)|
|Temp. Range:||0°C - 50°C