Power Distribution Units
When off-the-shelf PDUs don't fit your voltage, enclosure, or monitoring requirements, we build to your spec. Custom PDUs integrating voltage regulation, isolation, and branch-circuit monitoring — rack, floor, or wall — with the outlet configs, breakers, and protocols your application demands.
Responds within 2 business hours
Configurations
Rack · Floor · Wall · Custom
Monitoring
SNMP v3 · Modbus · BACnet
Accuracy
±1% power measurement
Manufacturing
Build to order · ISO 9001
3 Models Available
Power Island
42 Pole (Sm), 84 Pole (Lg)
Modular power distribution with neutral and ground bus. Tiered and slotted conduit landing brackets supporting single and three-phase applications.
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Power Pac
Three Phase, 15 – 450kVA
Comprehensive power distribution with built-in voltage regulation and monitoring. Designed for harmonic loads with >96% efficiency and system monitoring panel.
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Power Pal
Three Phase, 15 – 300kVA
Efficient power distribution with high isolation and harmonic load support. Cost-effective alternative to regulated systems with >96% efficiency and overload protection.
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Regulation, isolation, and distribution in one chassis
Standard PDUs just distribute power. Online Power integrates voltage regulation, isolation transformers, and power distribution into single units giving you fewer boxes, less complexity, and a single point of accountability for your entire power chain.
Custom outlet configurations for any application
NEMA 5-15, NEMA 5-20, NEMA L6-30, IEC C13, IEC C19, bus bars, MIL-spec connectors, and hospital grade receptacles configured exactly as your equipment requires. No adapter cables, no outlet conversion, and no compromises on connection integrity.
Branch circuit monitoring at plus or minus 1 percent accuracy
Track voltage, current, power factor, and kWh at the individual circuit level for capacity planning, phase balancing, tenant billing, and PUE reporting. Remote visibility via SNMP, Modbus, or web interface means your facility team sees real-time load data from anywhere.
What your spec sheet won't tell you
AI and HPC workloads are pushing data center rack densities to 30 to 60 kilowatts per cabinet, far beyond the 5 to 8 kilowatts that standard rack PDUs support. Floor-standing PDUs feeding multiple racks through sub panels are increasingly necessary but catalog PDU vendors do not offer the custom configurations these high density deployments require. For medical OEM applications, the PDU embedded in an imaging system must meet UL 60601-1 medical grade requirements including leakage current, isolation, and EMC specifications that no standard data center PDU carries. For colocation billing, monitoring grade accuracy of plus or minus 2 to 3 percent is not adequate for tenant billing. You need plus or minus 1 percent or better conforming to ISO/IEC 62053-21. Verify your PDU vendor's measurement accuracy specification because many quote accuracy at full load but degrade significantly at the 20 to 40 percent load points where most circuits actually operate.
Codes & Standards
UL 891
Switchboards
UL 60601-1
Medical Electrical Equipment (OEM PDUs)
NEMA PB-2
Deadfront Distribution Switchboards
TIA-942
Data Center Infrastructure Standard
NEC Article 645
Information Technology Equipment
ISO/IEC 62053-21
Power Measurement Accuracy
Where It Gets Specified
Custom Configuration
Every power distribution unit is built to your specific requirements. Contact our engineering team for custom panel board configurations and load analysis.
"In these uncertain times dealing with COVID-19, the US Government needed to build warehouses to help fight this tragedy. Time was critical so we turned to Online Power to provide 16 emergency lighting inverters. Online Power was able to build and ship all 16 units in 10 days. Great job Online Power."
Ready Electric Company
Electrical Contractor, Eckart Supply