Eaton SPC050277N6P Surge Protection Device - UL 1449
Part Number: SPC050277N6P
Quick Summary
The Eaton SPC050277N6P surge protection device protects critical electrical systems in industrial and commercial panels from transient surges. Varying line quality and sudden spikes can cause downtime, equipment damage, and escalating maintenance costs. UL 1449 listing guarantees safety performance, while the rugged NEMA 4X enclosure enables reliable operation in wet, dusty, and harsh environments. The SPC series integrates filtering and an alarm feature to provide visibility into power quality events and to trigger downstream protective actions. This model supports 277 V single-phase systems and external side mounting, simplifying installation in existing cabinets. For facilities seeking uptime and easier compliance, the SPC050277N6P combines robust protection with long-term cost savings and straightforward serviceability.
Product Information
Extended Description
SPC050277N6P Eaton: Surge Protection Device, SPC series, 50 kA, 277V, Single-phase, NEMA 4X, Filtering and Alarm
Product Name
Eaton SPC series surge protection device
Catalog Number
SPC050277N6P
UPC
786685999708
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
Voltage rating
277 V
Enclosure
NEMA 4X
Phase
Single-phase
Mounting Method
External side
Series
SPC
Feature: 50 kA surge rating paired with 277 V single-phase operation provides robust defense against high-energy transients. Business Impact: minimizes equipment stress, reduces unplanned outages, and extends the service life of critical drives and controllers. Application: suitable for industrial motor controls and commercial electrical rooms where power disturbances are common. Feature: Filtering & Alarm delivers real-time visibility of disturbances and automatic signaling to automation systems. Business Impact: enables proactive maintenance, reduces diagnostic time, and supports condition-based maintenance programs. Application: data acquisition and PLC-protected circuits in manufacturing lines. Feature: NEMA 4X enclosure and UL 1449 certification ensure safe operation in harsh environments. Business Impact: lowers enclosure ingress risk, simplifies outdoor or dusty plant deployments, and strengthens regulatory compliance. Application: outdoor panels, wash-down areas, and rugged production floors. Feature: External side mounting and compact footprint streamline retrofit and integration. Business Impact: reduces installation time, lowers labor costs, and fits multiple panel configurations. Application: new builds and upgrades in limited-space electrical enclosures. Feature: 10-year warranty provides long-term support and predictable maintenance budgeting. Business Impact: enhances total cost of ownership and confidence in uptime assurances. Application: procurement programs and service contracts for critical facilities.
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FAQs
The SPC050277N6P is designed for external side mounting, simplifying retrofit into many standard electrical panels. Begin by identifying a clean, accessible entry point on the panel exterior, ensuring the enclosure is rated for NEMA 4X environments. Securely mount the device using the provided hardware, connect line and load conductors per the 277 V single‑phase schematic, and verify the integral alarm output is wired to the control system or annunciation device. Confirm clearance and torque specs, then perform a functional test to ensure proper surge clamping and alarm signaling after installation.
A 50 kA surge rating indicates the device can safely absorb large transient currents typical of industrial power disturbances without degrading itself or the connected equipment. This rating translates to greater protection for drives, controllers, and sensitive electronics in 277 V single-phase networks, reducing the likelihood of nuisance tripping, voltage spikes, and downstream component damage during lightning events or switching surges.
Yes. The SPC050277N6P features a NEMA 4X enclosure designed for wet, dusty, and harsh environments, making it suitable for outdoor panels and rugged interiors. It carries UL 1449 certification, which confirms safety and performance in surge protection applications. This combination supports reliable operation in manufacturing floors, outdoor equipment racks, and ingress-prone facilities where protection against environmental factors is essential.
Key certifications for the SPC050277N6P include UL 1449, ensuring electrical safety and surge protection performance. In practice, this supports compliance with industry safety programs and procurement requirements for protected electrical systems in both industrial and commercial settings. The NEMA 4X enclosure further reinforces suitability for harsh environments, contributing to installation safety and long-term reliability.
By limiting transient overvoltages with a 50 kA rating and providing an integrated filter and alarm, the SPC050277N6P reduces fault events, minimizes downtime, and lowers maintenance costs associated with surge-related failures. Its 10-year warranty and straightforward installation also translate to lower lifecycle costs, less frequent panel servicing, and improved equipment availability in critical production lines.