Eaton SPC050277N1P Surge Protection Device - UL 1449
Part Number: SPC050277N1P
Quick Summary
The Eaton SPC050277N1P surge protection device protects electrical systems from transient overvoltage in industrial control panels and machinery. This helps engineers avoid costly downtime and equipment damage caused by voltage spikes during switching or external events. UL 1449 listing coupled with a rugged NEMA 4X enclosure ensures safety and reliability in harsher environments, while a 10-year warranty underscores long-term performance. Designed for 277 V single-phase applications, the SPC050277N1P integrates seamlessly with SPC-series deployments, delivering robust surge protection with quick retrofit capability and predictable lifecycle costs. In practice, it supports predictable uptime, simplified maintenance planning, and improved system resilience for industrial facilities and commercial infrastructure alike.
Product Information
Extended Description
SPC050277N1P Eaton: Surge Protection Device, SPC series, 50 kA, 277V, Single-phase, NEMA 4X, Standard configuration
Product Name
Eaton SPC series surge protection device
Catalog Number
SPC050277N1P
UPC
786680215414
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
Standard configuration
Voltage rating
277 V
Enclosure
NEMA 4X
Phase
Single-phase
Mounting Method
External side
Series
SPC
50 kA surge capacity provides strong transient suppression, reducing stress on downstream components and extending equipment life, which translates to lower maintenance costs and fewer unplanned outages in critical production lines. The 277 V rating aligns with common commercial and light-industrial power networks, enabling straightforward integration into existing panel boards without overdesign or retrofits. The external side mounting supports flexible installation in crowded or retrofit environments, enabling rapid deployment in control cabinets and power distribution enclosures. The SPC series heritage offers standardized protection with proven compatibility across Eaton protection devices, simplifying sparing and service planning. A rugged NEMA 4X enclosure delivers dust and water ingress protection, enabling outdoor or harsh indoor installation while maintaining performance. The UL 1449 listing confirms safety compliance, and the 10-year warranty provides long-term asset protection, reducing total cost of ownership. Typical applications include industrial control panels, machine feeds, and commercial infrastructure where reliable transient suppression is essential for uptime and process integrity. Compatibility with standard mounting footprints minimizes engineering changes and accelerates time-to-protection, ensuring fast, cost-effective deployments in new builds or upgrades.
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FAQs
Consider external side mounting clearance and panel space to accommodate the 5.5 inch depth and overall footprint. Ensure mounting location provides easy access for inspection and maintenance. Verify 277 V single-phase supply and compatible DIN rail or enclosure mounting options, and confirm the enclosure rating (NEMA 4X) aligns with environmental exposure, such as dust and moisture. Use proper torque on terminals and follow standard safety procedures during installation.
The device offers a 50 kA surge current rating, configured for 277 V single-phase systems. This enables effective clamping of high-energy transients common in industrial and commercial facilities, protecting downstream equipment such as drives, controllers, and sensors from damaging voltage spikes. Its UL 1449 listing provides safety assurance, while the enclosure supports reliable operation in demanding environments.
Yes. The SPC050277N1P is part of Eaton’s SPC surge protection family and uses an external side mounting method, matching typical SPC-series configurations. Its dimensions (5.5 in depth, 6 in height, 3.19 in width) and 2.5 lb weight fit common panel footprints, enabling straightforward retrofit into existing control panels and power distribution enclosures.
The SPC050277N1P is UL 1449 listed, ensuring compliance with recognized circuit protection safety standards. It features a NEMA 4X enclosure for enhanced environmental protection, suitable for wet or dusty environments. The 10-year warranty further supports reliability and long-term performance in demanding industrial applications.
By reducing transient-related equipment stress, the SPC050277N1P lowers maintenance frequency and replacement costs for downstream devices. Its robust UL 1449 protection and NEMA 4X enclosure reduce downtime in production lines and outdoor installations, delivering predictable lifecycle costs and improving overall asset reliability in industrial facilities.