FAULT MANAGED POWER (Class 4 Power)
Powering Edge Connectivity with Safe DC Power or High Power Electricity over Low-Voltage Cabling Infrastructure
Fault Managed Power redefines how we think about electrical and data distribution.
As buildings go from analog to digital and endpoints need more power and data, adopting FMP is no longer optional—it’s essential. FMP delivers the power and reach of higher voltage systems but without the expensive conduit, copper and specialized labor. It’s the game changer for electrical distribution and IT/OT networks.
Sounds like magic power – it’s not. Its fault managed power.
Sinclair Digital's Fault Managed Power System (Class 4 Power)
Fault Managed Power (FMP) — also known as Class 4 Power or Fault Managed Power Systems (FMPS) — is an emerging electrical distribution technology that makes power delivery safer, more reliable, and more efficient than traditional power systems. Added to the 2023 National Electric Code, it is gaining industry recognition.
Unlike conventional power distribution that relies on protective devices like breakers and fuses to respond after a fault occurs, FMP systems actively monitor for faults and stop energy delivery instantly to avoid hazards and downtime.
High Power
1500W per copper pair
Long Distance
Over 1km
Fast Installation
Limited energy means less materials and reduced labor requirements
Power + Data
Power & Data Cabling together in same pathway
Safety
UL-1400-1 Compliant
Sinclair® Digital's Fault Managed Power System
(Class 4 Power)
Fault Managed Power (FMP) — also known as Class 4 Power or Fault Managed Power Systems (FMPS) — is an emerging electrical distribution technology that makes power delivery safer, more reliable, and more efficient than traditional power systems. Added to the 2023 National Electric Code, it is gaining industry recognition.
Unlike conventional power distribution that relies on protective devices like breakers and fuses to respond after a fault occurs, FMP systems actively monitor for faults and stop energy delivery instantly to avoid hazards and downtime.
Where Fault Managed Power Is Making an Impact
FMP is ideal for modern digital infrastructure where power resilience and scalability are critical:
Data Centers & Edge Facilities
Reducing downtime risk and simplifying distribution trays ensuring continuous uptime for mission-critical workloads.
Telecommunications & Wireless Networks
Powering remote nodes without complex AC distribution.
Healthcare & Critical Facilities
Protecting people, devices, and equipment with reliable fault isolation and from power anomalies.
Commercial Buildings
Reliable power for smart systems and emergency operations.
Education & Campus
Scalable for edge computing to support high performance learning where uptime is critical
Hospitality
TBD
Sinclair® Digital's Leadership
We were among the first to integrate Class 4 Power into operational IT networks, making us a recognized pioneer in fault-managed power solutions.
Learn More & Get Started?
Ready to explore how Fault Managed Power / Class 4 Power can empower your next project?
Contact us to discover design considerations, deployment strategies, and real‑world use cases.
Efficient & Cost‑Effective
Class 4 power can often be installed using the same pathways and practices used for communication cabling — the same integrators who do PoE and structured cabling can support FMP systems — helping projects deploy faster and more predictably.
Higher Power & Longer Distance
Unlike Class 2 or Class 3 power systems (e.g., typical PoE), FMP systems are not limited by source output. They safely deliver hundreds or thousands of watts over much longer cable runs, enabling new use cases across modern infrastructure.
Easier Integration
Class 4 power can often be installed using the same pathways and practices used for communication cabling — the same integrators who do PoE and structured cabling can support FMP systems — helping projects deploy faster and more predictably.
Standards‑Driven Reliability
FMP technology is now defined in the NEC (Class 4) and supported by new safety standards (e.g., UL 1400), reflecting growing industry adoption and ensuring system reliability and compliance.
