The Liebert Precision Power Center (PPC) power conditioning and distribution cabinet is designed to bring you a distribution system that offers the benefits of a custom-tailored power system, with the convenience and cost savings of a pre-packaged, factory-tested unit. Housed in a single, self-contained cabinet, it combines distribution, computer-grade grounding, isolation, and power monitoring to provide the protection your vital computer or communications equipment demands. Available in 15-225 kVA capacity systems for raised floor applications and 15-150 kVA capacities in top-exit models for non-raised floors, the Liebert PPC offers flexible expansion capabilities to fit growing sites. Multiple input and output selections in both 60 Hz and 50 Hz models. 
A look inside the Liebert PPC Precision Power Center
Liebert PPC Features: - The main input breaker with low voltage shunt trip accessory provides primary transformer overcurrent protection, a power disconnecting means, and a method to interface with shutdown controls.
- Built-in transformer reduces harmonic neutral currents, which are possible with building wiring systems.
- A double-shielded isolation transformer located close to the load provides superior noise attenuation.
- Supplemental transformer protection is provided by temperature sensors in each winding to alarm abnormally high winding temperature or shutdown unit before isolation damage.
- One or more, individually enclosed 42 pole output panelboards with panelboard main breaker and
individual isolated neutral and ground busbars distribute power to the sensitive load equipment. - 42 output conduit landings are provided for each output panelboard to accommodate the large number of dedicated branch circuits recommended for sensitive electronic loads.
- Oversized neutral components safely withstand neutral currents of at least 1.73 times full load currents.
- System shutdown controls, including manual restart, overtemperature shutdown and emergency power off, are included.
- Shielded output cables for each load reduce EMI and RFI.
Optional System Enhancements A host of options enable you to design the Liebert packaged power system to your exact needs: - An expansion cabinet can be placed adjacent to Liebert PPC, adding up to six additional panel boards.
- Transient voltage surge suppression (TVSS) is available for increased protection from damaging voltage surges. Very short interconnecting wiring provides superior surge clamping performance.
- Redundant Liebert PPC configurations are available for high-availability, fault-tolerant applications including: dual-input breakers, dual-transformers, and static transfer switches.
- K20 transformer safely withstands high harmonic currents associated with electronic loads without derating.
Is the Liebert PPC the best PDU for your power needs?
Our engineers can help you select the best Power Distribution Unit for your power needs.
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Liebert PPC
Precision Power Center
The Liebert PPC offers many benefits: Flexibility: - Fully compatible with the non-linear loads of modern computer systems and other electronic equipment.
- Growth capability with add-on panelboards, optional
- expansion cabinet and flexible cabling that can be installed with minimal disruption.
- The unit can be easily relocated to protect your investment.
- UL and CSA Listed as a complete system to meet safety requirements for fast, hassle-free inspection and building code approvals.
Higher Availability: - Factory assembled and tested to ensure reliability and consistent performance.
- Improved power quality results in optimum equipment operation, reducing downtime and extending service life.
- Automatically establishes a single point ground to meet major manufacturers' recommendations and the requirements of the National Electric Code.
- Built-in metering and alarm annunciation with communication capabilities to Liebert centralized monitoring.
Lowest Total Cost Of Ownership: - Packaged system approach reduces installation time and cost compared to a conventional approach using multiple interconnected components.
- Compact single cabinet conserves valuable floor space.
- Single input cable connection reduces installation time and cost.
Ideally Suited For: - Data centers
- Telecommunications
- Manufacturing
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