Eaton SPC050277N8P Surge Protection Device - UL 1449
Part Number: SPC050277N8P
Quick Summary
The Eaton SPC050277N8P surge protection device protects critical equipment in 277 V single‑phase power systems. By absorbing transient surges from motors, breakers, and external faults, it helps prevent downtime and costly repairs. This unit offers a robust 50 kA surge rating, a NEMA 4X enclosure, and built‑in filtering with an alarm and Form C relay for reliable status signaling. UL 1449 certified, the SPC050277N8P meets essential industrial safety standards while tolerating harsh environments. For engineers and procurement teams, it delivers predictable protection with a 10‑year warranty, straightforward external side installation, and clear fault signaling, supporting maintenance planning, compliance, and total cost of ownership reduction.
Product Information
Extended Description
SPC050277N8P Eaton: Surge Protection Device, SPC series, 50 kA, 277V, Single-phase, NEMA 4X, Filtering, Alarm and Form C relay
Product Name
Eaton SPC series surge protection device
Catalog Number
SPC050277N8P
UPC
786685999722
Product Length/Depth
5.5 in
Product Height
6 in
Product Width
3.19 in
Product Weight
2.5 lb
Warranty
10 year
Certifications
UL 1449
Special features
Filtering, Alarm & Form C relay
Voltage rating
277 V
Enclosure
NEMA 4X
Phase
Single-phase
Mounting Method
External side
Series
SPC
The SPC050277N8P delivers a 50 kA surge rating at 277 V in a single‑phase configuration. This specification translates to robust protection for critical loads against high-energy transients, reducing unexpected downtime in manufacturing and data center environments. Filtering, along with an alarm and Form C relay, provides clearer fault signaling and smoother operation for preventive maintenance schedules. The business impact is fewer nuisance trips and faster fault diagnosis, enabling quicker restoration of service. The NEMA 4X enclosure protects the unit in challenging environments, including outdoor installations and wash-down areas. This enclosure rating expands installation options while maintaining IP-level protection through standard electrical code compliance. External side mounting simplifies retrofits and integration with existing panels, reducing field labor and downtime during installation. Compatibility with standard DIN rail or panel spaces allows for flexible deployment across multi-vendor power systems. UL 1449 certification ensures electrical safety and reliability, aiding regulatory compliance and certification audits. The combination of protection performance and recognized standards helps procurement teams justify ROI and lifecycle cost. A 10-year warranty underpins total cost of ownership, offering long‑term assurance against component wear and environmental exposure. With these features, the SPC050277N8P supports long-term reliability and predictable maintenance planning in facilities.
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FAQs
SPC050277N8P uses external side mounting, enabling straightforward integration into existing panel enclosures with minimal disassembly. This approach minimizes field labor and downtime during retrofit projects, while its compact footprint (5.5 in depth, 6 in height, 3.19 in width) fits standard control panels and minimizes rework in tight installation spaces.
The SPC050277N8P is rated for 50 kA surge protection at 277 V in a single‑phase configuration. This combination provides strong transient protection for sensitive equipment while aligning with industrial power distributions. The UL 1449 certification confirms compliance with recognized safety standards for surge protective devices.
Yes. The unit uses a NEMA 4X enclosure, which is designed for rugged, outdoor, and wash-down environments. This makes it appropriate for plant floors, exterior panels, and areas requiring moisture and dust resistance, helping maintain protection integrity in harsh industrial settings.
The device features built‑in filtering along with an alarm and Form C relay. This signaling enables clear fault indication and external control or monitoring integration, simplifying preventive maintenance, remote status checks, and automated shutdowns in wired control architectures.
The SPC050277N8P carries a 10‑year warranty, supporting long‑term reliability and predictable maintenance budgeting. Its robust surge protection, durable enclosure, and clear signaling help reduce downtime and extend equipment life, contributing to lower lifecycle costs and a favorable return on investment over the device’s service life.