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Engineering Selection Guide When an elevator or building system has both normal utility power and a standby source such as a generator, an automatic transfer switch can transfer the upstream…

Engineering & Procurement Guide A fire pump is not an ordinary standby load. When an installation uses automatic transfer between a normal power source and an alternate source, the transfer…

Pump Control Panel Engineering Guide A pump station automatic transfer switch should be selected as part of the complete utility-generator-pump control system, not from pump power alone. For suitable low-voltage…

Selecting an outdoor telecom cabinet ATS starts with the power architecture, not the cabinet size. For cabinet manufacturers, telecom system integrators and project buyers, the ATS must match the two…

Telecom Power Selection Guide A telecom base station can contain utility power, a standby generator, AC distribution, rectifiers, batteries and a -48 V DC power system. The key ATS selection…

Hotel ATS Engineering Selection Guide Selecting an automatic transfer switch for a hotel starts with the backup-power circuit, not with the total electrical capacity of the building. For compact ATS…

Commercial Building Backup Power Guide For a commercial building, the right automatic transfer switch is selected from the backup circuit it actually supplies, not simply from the total electrical capacity…

An automatic transfer switch can be useful in a factory without being responsible for the entire factory power system. For a compact ATS, the more realistic industrial application is usually…

A hospital automatic transfer switch should be selected according to the circuit it supplies, not simply because the installation is a hospital. For a generator-backed system, the main engineering question…