Data Sheet

Product Specification Sheet APS643 - Rev. 01/2017
NG333 Power Supply Unit (QwikBUS™ Series)NG333 Power Supply Unit (QwikBUS™ Series)
42 Central Drive • Farmingdale • NY • 11735-1202 • Phone: [phone] • Fax: [phone] Central Drive • Farmingdale • NY • 11735-1202 • Phone: [phone] • Fax: [phone]
TOLL-FREE: [phone] • Web: AlphaCommunications.com • Email: [e-mail]-FREE: [phone] • Web: AlphaCommunications.com • Email: [e-mail]
Copyright© 1998-2017 Alpha Communications® - All Rights Reserved.
Due to continuous product improvement, all colors, sizes, materials, finishes and specifications are subject to change without notice.
Architects' And Engineers' SpecificationsArchitects' And Engineers' Specifications
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.
Contractor shall furnish the proper C333-4 connecting cable to
connect to the SP333 intelligent controller.
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).
Contractor shall observe all local and national electrical and
building codes.
NG333 Switching Power SupplyNG333 Switching Power Supply
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.
Each 4-wire QwikBUS™ system requires a minimum of one NG333
Power Supply.
FeaturesFeatures
Easily Installs Right on Finished Wall Surface or in Optional
Junction Box (model# CEC152 or equivalent)
Operates on Safe Low-Voltage Class II Wiring
Positive Screw Terminal and Plug-in Connectors
SpecificationsSpecifications
Dimensions:
Height: 3.75" (96mm)
Width: 4.25" (108mm)
Depth: 2.375" (61mm) from mounting surface
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