Vertiv FSC3N005 Facility Side Cable, 50A 208V Delta 3-Phase, 10ft
Overview
The Vertiv FSC3N005 — model number CSN-S02A8-03000-5CS15A-S — is a pre-terminated Facility Side Cable (FSC) engineered to connect your floor-level 3-phase power infrastructure to the Vertiv Geist Universal Power Distribution Unit (UPDU). The core idea behind the FSC+UPDU system is straightforward: rather than stocking separate PDU models for every data center power configuration worldwide, you deploy a single UPDU model and swap the FSC to match whatever 3-phase power is available at the rack. This cable handles the 50A, 200–240V Delta side of that equation, terminating in a California Style 3P/4W Twistlock plug on the facility end and Vertiv's proprietary Universal Connector on the UPDU end.
Every FSC3N005 unit is 100% factory-tested for functionality and reliability before it ships — not batch-sampled, every unit — which matters when a single wiring fault on a live 3-phase 50A circuit creates a safety incident, not just a service call. The cable is manufactured in the USA and carries TAA Compliant and Buy American Act COTS Compliant status, making it eligible for federal, defense, and government data center procurement where domestic sourcing is a contractual requirement.
For a deeper look at the broader Vertiv power distribution catalog or the full rack PDU lineup, both are good starting points when sizing a deployment across multiple rack configurations.
Key Features
- 50A, 208V Delta at 14.4kW Max: Sized for high-density compute racks that have outgrown 30A circuits. At 14.4kW max plug capacity, a single FSC3N005 can feed a fully loaded UPDU serving a 10–15kW rack — which covers the majority of hyperconverged and GPU-compute deployments without needing a second whip. The 6/4 wire gauge (six conductors, #4 AWG) is what makes that current rating practical at 10 feet without excessive voltage drop.
- California Style 50A, 250V, 3P/4W Twistlock Plug (NEMA L16-50P equivalent): This is a standard plug form found on 3-phase 50A branch circuits in North American colocation and enterprise data centers. If your PDPs (Power Distribution Panels) already have 50A 3-phase receptacles in place, the FSC3N005 mates directly — no adapter, no field modification required. The twist-lock retention prevents accidental disconnection under vibration or cable strain.
- Universal Connector Output: The UPDU-side connector is Vertiv's proprietary Universal Connector, which is specifically designed to mate with the Universal Input on Vertiv Geist UPDU models. This connector is the physical handshake that makes the entire FSC+UPDU architecture work — don't attempt to field-fabricate a substitute.
- 10ft / 3m Cable Length: Long enough to reach from a standard raised-floor power tap or overhead busway drop to the top of a 42U or 48U rack with slack for strain relief, in a typical colo or enterprise machine room with 9–12 ft ceilings. If your power entry point is more than 10 ft from the UPDU connection point, you'll need to verify the routing distance before ordering — no extension is specified.
- 200–240V Delta, 50/60Hz: The Delta voltage range covers both US 208V 3-phase (the most common in North American data centers) and international 220–240V Delta configurations, making this cable usable in a wider range of facilities than a fixed 208V-only whip. The 50/60Hz dual-frequency rating handles both North American and international grid frequencies from a single SKU.
- 6/4 Wire Gauge: Four conductors at #6 AWG (three phase conductors plus ground) rated for the full 50A load. This is a heavy-gauge cable — expect it to be stiff and require proper bend-radius management during installation. Forcing sharp bends near the terminations can stress the conductors at the plug crimp points.
- UL & c-UL Listed (62368-1), RoHS Compliant: UL 62368-1 is the Audio/Video and IT Equipment safety standard, and UL/c-UL listing means both US and Canadian listing bodies have verified the construction. RoHS compliance covers European hazardous-substance restrictions. These marks matter for facilities with strict procurement specs or insurance requirements around unlisted electrical assemblies.
- TAA Compliant, Buy American Act COTS Compliant, Made in USA: Government data centers, DoD facilities, and federal contractors subject to FAR 25.1 procurement rules can specify this cable without exception waivers. TAA compliance means the country of origin is on the approved list for GSA Schedule and other federal contract vehicles.
- 5-Year Limited Warranty: A five-year warranty on a facility power cable is longer than most comparable products in this class, and it signals Vertiv's confidence in the construction quality — particularly the termination integrity at both ends, which is where pre-terminated cables most often fail.
Integration & Compatibility
The FSC3N005 is designed exclusively for use with Vertiv Geist Universal PDU (UPDU) models. The Universal Connector on the cable output is a proprietary interface — it will not mate with standard IEC or NEMA outlet types on conventional PDUs. If you're building out a new rack deployment, pair this cable with the correct UPDU model (sold separately) and confirm the UPDU's Universal Input accepts the 208–240V Delta, 50A input this cable provides. The UPDU's per-receptacle output voltage will be 208–240V, which needs to match the input requirements of the servers and equipment being powered downstream.
For facilities running 50A 3-phase Delta branch circuits from a switchboard or RPP (Remote Power Panel), the California Style Twistlock plug on the FSC3N005 mates with standard 3P/4W 50A Twistlock receptacles — the same form factor used by many major colo providers for their per-rack power delivery. Verify your facility's receptacle type before ordering; if your PDP uses a different plug form (e.g., IEC 60309 or a different NEMA configuration), a different FSC model will be required.
If you're planning a multi-rack rollout, the FSC+UPDU architecture lets you standardize on a single UPDU part number across all racks and adjust only the FSC per rack based on local power availability — a meaningful simplification for data center power planning and spare-parts inventory. Pair this with a solid rack PDU strategy for the cleanest deployment.
Frequently Asked Questions
Q: What PDU does the FSC3N005 connect to?
A: The FSC3N005 is designed exclusively for use with Vertiv Geist Universal Power Distribution Unit (UPDU) models. The Universal Connector on the cable output mates with the Universal Input on the UPDU. The UPDU is sold separately.
Q: What plug type does the FSC3N005 use on the facility side?
A: It uses a California Style 50A, 250V, 3-Phase/4-Wire Twistlock plug — a standard form factor for 50A 3-phase branch circuits in North American data centers and colocation facilities.
Q: Is the FSC3N005 TAA compliant?
A: Yes. The FSC3N005 is TAA Compliant and Buy American Act COTS Compliant, with country of origin listed as USA. It is eligible for federal, DoD, and GSA Schedule procurement requiring domestic sourcing.
Q: What is the warranty on the FSC3N005?
A: Vertiv covers the FSC3N005 with a 5-year limited warranty.
Q: What certifications does the FSC3N005 carry?
A: The FSC3N005 is UL and c-UL Listed under standard 62368-1 (Audio/Video and IT Equipment safety) and is RoHS compliant.
Q: Can the FSC3N005 be used with international 3-phase power?
A: The cable supports 200–240V Delta at 50/60Hz, which covers both US 208V 3-phase and international 220–240V Delta configurations. However, confirm the plug form (California Style Twistlock) is compatible with your facility's receptacle type — international facilities may use IEC 60309 or other plug standards that require a different FSC model.
The FSC3N005 is the cable you spec when you're deploying Vertiv Geist UPDUs into North American colo or enterprise data center racks fed by 50A 3-phase Delta circuits. The 6/4 wire gauge at 10 feet gives you a clean, code-compliant run from a standard 50A Twistlock receptacle to the UPDU's Universal Input without undersizing the conductors for the load — a detail that matters when you're running at or near 14.4kW on a shared power zone.
Technical Highlights:
- 14.4kW at 208V Delta: Sized for high-density racks running 10–15kW loads — covers modern hyperconverged nodes, GPU compute, and high-density blade chassis without needing a second whip or a panel upgrade to a larger breaker.
- California Style 3P/4W Twistlock: Mates directly with the standard 50A 3-phase Twistlock receptacles found in the majority of North American enterprise and colocation power panels — no adapters, no field termination, twist-locks to prevent pull-out under cable strain.
- TAA + Buy American Act COTS Compliant, Made in USA: Purpose-built for federal, DoD, and GSA Schedule procurements where domestic origin is a contractual hard requirement — not just a preference.
Deployment Considerations:
- The Universal Connector on the UPDU end is proprietary to Vertiv Geist UPDU models — confirm your UPDU model number accepts this input before ordering. This cable will not function with standard IEC or NEMA outlet-type PDUs.
- At 10ft / 3m, routing distance from the panel receptacle to the UPDU connection point needs to be verified before install. Heavy 6/4 gauge cable has limited flex and requires proper bend-radius management — don't force tight bends near the plug terminations.
The FSC3N005 is the right call for government data centers and federal contractors deploying Vertiv Geist UPDUs under TAA-constrained procurement, specifically where the power panel is delivering 50A 208V Delta 3-phase and the rack density demands are in the 10–15kW range.
