Outdoor UPS, also known as exterior rated uninterruptible power systems (UPS systems/battery backups) are available in standard IP 44 (NEMA 3R) and other enclosures for use in extreme wide temperature exterior environments to support applications such as: outdoor surveillance cameras, telecommunications, cellular, wi-fi, base stations and others.

Outdoor uninterruptible power systems table

	XUPs	XUPS 6339	UPS- Ferro	UPs- Dc	XUPS OEM	UPS- Conf
Wide temperature batteries
IP 44 (NEMA 3R) outdoor enclosure						3R
Filtering and surge protection
Maintenance bypass	3R			3R	Opt.	3R
Automatic bypass	3R	Opt.		3R	Opt.	3R
Wide ac voltage input window						3R
Dc output (12V, 24V or 48V)	3R	3R	3R		3R	3R
PWM automatic voltage regulation			3R	3R		3R
Ferroresonant voltage regulation	3R	3R		3R	3R	3R

Outdoor UPS are for where uptime is critical to an operation's mission fulfillment. Typical outdoor UPS back-up times are from 8 minutes to 24 hours. If even longer times are desirable, extra battery cabinets or extra internal batteries are optional.

Please note: a good rule of thumb to keep in mind for calculating backup time for your application is "if you halve the load, you triple the backup time of the batteries." e.g. if you use a 1000W UPS that has a full load backup time of 10 minutes, but your true rms measured load wattage is actually only 500W, then your backup time would actually be about 30 minutes.

The Outdoor XUPs series sine wave outdoor UPS incorporates a built-in automatic voltage regulator to enable handling wide voltage swings without having to exercise the batteries, which thereby extends battery life. This is an important feature for remote locations where being so far out may  create significant voltage drop from nominal.

Line-interactive single conversion UPS topologies are utilized as the primary choice for these units (instead of double conversion ac-dc-ac "true on-line" UPS) due to the typical application's critical need for light weight and as little heat throw-off from the UPS as possible. In addition to ambient temperature, too much extra heating from the UPS itself could otherwise potentially create an over-temperature situation. Outdoor UPS transfer times from utility to battery power are extremely fast, and essentially invisible to the modern switch mode power supplies used in almost all new systems these days.

Please note: if you are an OEM/systems integrator already utilizing your own outdoor enclosure and have enough space inside for a wide temperature UPS, click here for "indoor" wide temperature UPS.

Typical outdoor uninterruptible power supply applications would be:

• For CCTV video surveillance public security operations,
  to enable video detection camera views to continue during a power outage.
• For broadband and cellular base stations,
  to protect local and wireless cellular networks from loss of transmission during outages.
• For remote authorization systems, 
  to make sure people can still get in and out when they need to.
• For advanced traffic management systems (ATMS),
  to make sure traffic control LED signals keep intersections clear.

Outdoor uninterruptible power supplies
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