Raritan Rack Transfer Switch – PX-xx

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Raritan Rack Transfer Switch – PX-xx

Rack Transfer Switches Designed for True Reliability

Raritan’s hybrid rack transfer switch system prevents downtime in racks with single-power-supply devices. It is the first company in the world to offer both electromechanical relays and silicon-controlled rectifiers (SCRs) to overcome the limitations of the traditional automatic transfer switch (ATS). It delivers load transfer times similar to a static transfer switch (STS), greater energy efficiency and a much 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 4,800 times per second for load transfers between 4 and 8 ms.
  • Although the transfer switches are designed for 16A and 32A loads, large relays rated at 48A and SCRs rated at 70A are included.
  • A relay contact air gap of 3.3 mm, compared to the 0.6 mm gap used in most transfer switch relays on the market to prevent electrical arcing.
  • Two single-throw relays instead of one double-throw relay (a single point of failure) to support reliable out-of-phase transfers.
  • Power metering at the inlet, outlet and branch circuit level.
  • Remote outlet switching.

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Patent-Pending Hybrid Design

Raritan introduces the first hybrid rack transfer switch that combines electromechanical relays and silicon-controlled rectifiers (SCRs) for outstanding performance and reliability.

Lightning-Fast Transfer Times

SCRs provide fast power transfer times of 4 to 8 ms, so your equipment keeps running during a power outage or surge.

Designed for Reliability

This pioneering rack transfer switch offers input surge protection, field-replaceable output short-circuit protection and redundant internal power supplies.

Web-Based Remote Power Monitoring

Real-time remote power quality monitoring with user-definable thresholds and alerts for voltage and frequency. Includes the AC waveform of the last transfer and measurement of power loads.

Real-Time Power Metering

Monitor power usage at the inlet, outlet or branch circuit level to prevent circuit breaker trips, uncover stranded capacity and use resources efficiently.

Remote Power Control

Reboot hung servers or keep outlets off to prevent unauthorized access, ensure proper provisioning and prevent circuit breaker trips.

Break-Before-Make

Built-in sensors detect failed power feeds and, within 4 to 8 ms, ensure power is transferred before switching from one power source to the other.

Out-of-Phase Transfers

Uses two single-throw relays instead of one double-throw relay (a single point of failure) to support reliable transfers regardless of power phase.

Eliminates Relay Welding

To prevent arcing caused by power surges, it uses SCRs and oversized relays with a 3.3 mm air gap, compared to the 0.6 mm gap used in most transfer switch relays.

Monitor and Optimize Your Environment

Optional ports for plug-and-play environmental sensors that let you monitor critical environmental conditions.

Industry's Most Flexible USB Port

The transfer switch is equipped with front and rear USB ports to support Wi-Fi networking, cascading, webcams, quick setup, and tablet access and control.

Remote Management Capabilities

Threshold alerts and status updates via GSM text, email and Syslog. Intuitive GUI, SNMP, Modbus, TCP/IP, JSON-RPC for scripting, IPv4/IPv6.

Energy Metering and Power Quality Monitoring

Make informed capacity planning decisions, use power resources efficiently and monitor power fluctuations.

Ready for Harsh Environments

Operates at ambient temperatures up to 60°C (UL) and 50°C (CE) at 85% relative humidity.

DCIM Monitoring Integration

Integrates seamlessly with Power IQ® DCIM Monitoring Software for complete data center power infrastructure management.

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