Automated Transfer Switch (ATS)

The Automated Transfer Switch (ATS) is a power switch with dual redundant inputs that allows equipment to be connected to two utility power supply grids, increasing availability in the event of either one of the two power grids failing. The switch is rack mounted and has a current handling capacity of up to 16A.

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Features

• Allows equipment to be connected to two utility power grids and survive the failure of one of the power grids
• Connects to a primary and secondary power input, switches to the secondary power source in the event of the primary source failing
• Used to provide a resilient power source for devices with a single power supply
• Can also be used to connect equipment with an odd number of N+1 redundant power supplies (with individual feeds) to two utility power grids.
• 1U rack mounted, includes mounting kit
• Can be used with most equipment racks
• Two 16A IEC320 C20 input sockets for connection to two incoming power grids
• One IEC320 C19 and eight IEC320 C13 outputs, maximum total load 16A (cables not included)
• Fast switching time prevents server interruption during switchover
• Overload protection (circuit breaker trip guards included)
• Supports out-of-phase inputs
• Includes two IEC320 C19 to C20 16A input cables
• One year warranty

Product Details

Many computer room installations include dual independent incoming power grids. This power switch increases the availability of equipment by allowing it to be connected to both incoming power grids, therefore enabling the equipment to survive the failure of one of the incoming power grids.

The switch may be used with equipment that has a single power supply, or equipment which has three or more power supplies.

The switch can be mounted in 1U of rack space, has two power inputs and up to nine power outputs. The power inputs are connected to two independent utility power grids (which can be on different phases), whilst the output is connected to the equipment being supported. Under normal operation all the outputs are supplied from the primary power input. If the primary power grid fails, the device switches the outputs to be supplied by the secondary power input. Fast switching time (<30mS) allows the supported systems to continue without interruption.

Typical Configuration for Use with Single Power Supply Equipment

In this instance the equipment is normally supplied by Grid A which is connected to the primary ATS input. In the event of Grid A failing, the ATS switches to Grid B which is connected to the secondary ATS input.

Config. for Use w/Equip. with 3 Non-Redundant Power Supplies

All three power supplies connect to the ATS and are switched from Grid A to Grid B in the event of Grid A failing.

Config. for Use w/Equip. with 3 N+1 Redundant Power Supplies

In this instance the equipment has three power supplies in a redundant N+1 configuration (only two supplies are required for operation). Because one of the power supplies can fail without affecting the operation of the equipment, only one of the power supplies need be connected through the ATS. This will ensure that two power supplies remain active in the event of either one of the incoming power supply grids failing.

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