Rack Transfer Switches

The PX3TS Rack Transfer Switch series prevents downtime in cabinets with single power supply devices.

Rack Transfer Switches

The PX3TS Rack Transfer Switch series prevents downtime in cabinets with single power supply devices. It provides power metering at the inlet, outlet, and branch circuit level. It also offers outlet-level switching for better remote power control. Its patent-pending hybrid design allows for reliable load transfers within 4 to 8ms.

Raritan’s hybrid rack transfer switch system is the first in the world to offer both electromechanical relays and silicon-controlled rectifiers (SCRs) to overcome the limitations of a traditional automatic transfer switch (ATS). It provides load transfer times that are comparable to that of a static transfer switch (STS), more energy efficiently, and at a far more accessible price point.  It is also the first in the world to offer inlet, outlet, and branch circuit level power metering; and outlet-level switching for better remote power control.

Raritan’s rack transfer switch offers:

• Current sampling at 4,800 times per second for load transfers within 4 to 8ms.
• Oversized relays, rated at 48A, and SCRs, rated at 70A, even though the transfer switches are intended for 16A and 32A loads.
• Relay contact air gap of 3.3mm vs. the 0.6mm gap used in most transfer switch relays on the market to prevent electric arcing.
• Two single throw relays instead of one double throw relay (a single point of failure) to support reliable out-of-phase transfers.
• Inlet, outlet, and branch circuit level metering.
• Remote outlet switching.