Eaton SPC050277N2P Surge Protection Device - UL1283 5th Edition Filtering
Part Number: SPC050277N2P
Quick Summary
The Eaton SPC050277N2P surge protection device guards electrical systems against damaging transients in 277 V single-phase industrial and commercial applications. When surges occur, equipment downtime, data loss, and unplanned maintenance erode productivity; this SPD helps mitigate those costs by clamping spikes and reducing electrical noise. Built to UL 1449 listing and UL1283 5th Edition with a rugged NEMA 4X enclosure, it withstands harsh environments while delivering reliable protection. Its external side mounting and SPC-series compatibility enable straightforward installs in existing panels without major rewiring. With a 10-year warranty and robust performance, it supports uptime, protects critical automation equipment, and strengthens overall plant reliability.
Product Information
Extended Description
SPC050277N2P Eaton: Surge Protection Device, SPC series, 50 kA, 277V, Single-phase, NEMA 4X, Filtering, UL1283 5th Edition
Product Name
Eaton SPC series surge protection device
Catalog Number
SPC050277N2P
UPC
786680215421
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, UL1283 5th Edition
Voltage rating
277 V
Enclosure
NEMA 4X
Phase
Single-phase
Mounting Method
External side
Series
SPC
High surge capacity with dedicated filtering provides tangible business value. The SPC050277N2P delivers up to 50 kA surge rating, which translates to reduced risk of downstream component damage and lower maintenance costs on critical lines. In practice, this means fewer unplanned shutdowns on automation panels, CNCs, and conveyors. The UL1283 5th Edition filtration improves power quality by suppressing conducted EMI and voltage transients, enabling more stable PLC inputs and cleaner sensor data for tighter process control. The NEMA 4X enclosure adds resilience against dust, moisture, and corrosive environments, reducing service calls in outdoor or industrial settings. External side mounting simplifies retrofits, minimizes panel downtime, and preserves valuable cabinet space, especially in retrofit projects with existing SPC-series infrastructure. A 10-year warranty reinforces long-term total cost of ownership advantages and supplier confidence for mission-critical applications in manufacturing, data centers, and process industries.
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FAQs
The SPC050277N2P is designed for external side mounting, enabling straightforward retrofits without invasive panel work. Its compact 5.5 in depth, 6 in height, and 3.19 in width fit a range of enclosure footprints, and its single-phase 277 V rating integrates smoothly with standard automation panels. This minimizes downtime during installation and preserves existing wiring arrangements while delivering robust surge protection.
This device is UL 1449 listed and UL1283 5th Edition compliant, ensuring recognized protection performance and EMI filtering. The UL listings support equipment safety and performance claims for electrical panels and machines, while the EN/IEC equivalents in the field provide confidence for regulated facilities. A NEMA 4X enclosure further supports compliance in dusty or damp environments, reducing risk during audits and inspections.
Yes. The SPC050277N2P is a 277 V single-phase surge protector designed specifically for industrial automation applications. Its 50 kA surge capacity, UL-listed performance, UL1283 filtering, and rugged NEMA 4X enclosure make it well-suited for protecting controllers, drives, sensors, and panelboards in manufacturing and processing environments.
The device reduces unplanned downtime by clipping transient spikes and filtering noise that can cause nuisance trips. Its 10-year warranty lowers lifecycle risk, while its reliability minimizes frequent replacements of downstream electronics. In high-throughput lines, this translates to improved uptime, fewer maintenance visits, and a lower total cost of ownership for surge protection investments.
The SPC050277N2P complements other protection layers by handling transients at the source with a dedicated 50 kA rating, while its compatibility with SPC-series products supports modular protection schemes. It’s ideal for 277 V single-phase feeders feeding industrial machines, automation panels, and critical loads, providing filtration and protection without requiring major panel modifications.