Eaton SPD100480Y1N Surge Protection Device - UL 1449
Part Number: SPD100480Y1N
Quick Summary
The Eaton SPD100480Y1N surge protection device protects 277/480V wye systems from damaging transients. Engineers often struggle with mounting clearances and retrofits, so a sidemount external-to-distribution equipment design reduces panel intrusion and simplifies upgrades. UL 1449 listed and housed in a rugged NEMA 4X enclosure deliver dependable protection in harsh industrial environments, backed by a 15-year warranty. By choosing this SPD, you gain robust surge protection, extended equipment life, and improved uptime for critical manufacturing lines, data centers, and other high-demand electrical distributions. The solution also aligns with standard SPD series compatibility, making procurement straightforward and installation faster for industrial facilities.
Product Information
Extended Description
SPD100480Y1N Eaton: Surge Protection Device, SPD series, 100 kAIC, 277/480V wye (4W+G), Basic feature package, NEMA 4 enclosure, External side mount, 320 L-N, 320 L-G, 320 N-G, 640 L-L operating voltage
Product Name
Eaton SPD series surge protection device
Catalog Number
SPD100480Y1N
UPC
786685334479
Product Length/Depth
9.5 in
Product Height
3.45 in
Product Width
5.4 in
Product Weight
3.5 lb
Warranty
15 year
Certifications
UL 1449
Type
Surge protection device
Accessories
Basic feature package
Voltage rating
277/480V wye (4W+G)
Enclosure
NEMA 4X
Mounting Method
External side
Interrupt rating
100 kAIC
Operating voltage
320 L-N, 320 L-G, 320 N-G, 640 L-L
Series
SPD
Eaton’s SPD Series (Sidemount Versions) Brochure
Eaton SPD Series - For Mounting External To Electrical Distribution Equipment Installation Manual
Eaton Specification Sheet - SPD100480Y1N
Eaton’s SPD Series (Sidemount Versions) Data Sheet
Feature: External side mounting enables protection equipment to be installed outside the main distribution enclosure. Business Impact: It minimizes panel footprint, speeds retrofits, and reduces on-site disruption. Application: Ideal for adding surge protection to existing 277/480V systems in manufacturing floors, data centers, and industrial control panels. Feature: 100 kAIC interrupt rating provides higher transient tolerance. Business Impact: This capacity helps withstand lightning surges and switching transients without compromising downstream devices. Application: Suitable for critical loads and motor control centers where uninterrupted protection is essential. Feature: Voltage rating of 277/480V wye with 320 L-N, 320 L-G, 320 N-G, and 640 L-L operating voltages. Business Impact: Ensures compatibility with typical facility distributions and safe operation across the full load range. Application: Commonly deployed in industrial plants, data centers, and commercial facilities using three-phase power. Feature: NEMA 4X enclosure and UL 1449 listing ensure rugged protection for harsh environments. Business Impact: This reduces field service events and extends service life of connected equipment. Application: Suited for manufacturing floors, outdoors, and other demanding installations, while leveraging the SPD series basic feature package. Feature: Compact form factor and weight—9.5 in length, 5.4 in width, 3.45 in height, and 3.5 lb weight. Business Impact: Facilitates easy mounting and space planning in crowded electrical rooms. Application: Ideal for sidemount installations alongside other protective devices in high-density distributions.
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FAQs
Yes. The SPD100480Y1N is designed for external side mounting, allowing protection devices to be installed outside the main distribution equipment. Installation best practices are covered in Eaton’s IM01005031E manual, and the Basic feature package supports quick, code-compliant deployment. This configuration minimizes panel intrusion while maintaining accessible service for maintenance and testing.
Key specs include a 100 kAIC interrupt rating and a voltage rating of 277/480V wye (4W+G). Operating voltages are 320 V line-to-neutral, 320 V line-to-ground, 320 V neutral-to-ground, and 640 V line-to-line. The enclosure is NEMA 4X, and the unit is UL 1449 listed, making it suitable for rugged industrial environments and critical protection scenarios.
Yes. The unit is housed in a NEMA 4X enclosure and UL 1449 listed, engineered for rugged industrial use. This combination provides reliable protection in damp, dusty, or washdown environments. For outdoor or challenging site conditions, ensure external mounting is correctly implemented per the installation guide to maximize longevity and performance.
The SPD100480Y1N carries a 15-year warranty, reflecting Eaton's confidence in long-term protection for critical power systems. With proper installation and routine verification, this SPD supports reduced maintenance events and extended equipment life. The warranty helps lower total cost of ownership by minimizing unplanned downtime and safeguarding investment in distribution infrastructure.
Industries with high reliability requirements, such as manufacturing, data centers, and process control environments, benefit most. The unit protects 277/480V distribution, external-to-distribution equipment installations, and motor control centers from transient surges. Its sidemount design, rugged enclosure, and 100 kAIC rating make it ideal for protecting critical loads in crowded electrical rooms and outdoor substations.