Eaton SPD100480Y1L Surge Protection Device - 100 kAIC
Part Number: SPD100480Y1L
Quick Summary
The Eaton SPD series surge protection device protects electrical systems from transient overvoltages in industrial and commercial applications. The device helps prevent costly downtime and equipment damage caused by surge events, a common pain point for maintenance teams and facility managers. With UL 1449 listing and a NEMA 1 enclosure design, this sidemount SPD is built to endure harsh environments while simplifying installations. For projects requiring reliable protection in 277/480V wye systems, the Eaton SPD100480Y1L delivers robust performance, extended service life, and predictable maintenance intervals. This combination of protection, reliability, and ease of retrofit supports lower total cost of ownership and greater system uptime.
Product Information
Extended Description
SPD100480Y1L Eaton: Surge Protection Device, SPD series, 100 kAIC, 277/480V wye (4W+G), Basic feature package, NEMA 1 flush 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
SPD100480Y1L
UPC
786685329970
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 1
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 - SPD100480Y1L
Eaton’s SPD Series (Sidemount Versions) Data Sheet
Feature: 100 kAIC interrupt rating mirrors high-energy surge events, guarding downstream equipment and reducing downtime. Business Impact: minimizes unplanned outages, saving maintenance costs and protecting critical loads. Application: ideal for heavy industrial controls and bus-ducts in 277/480V systems. Feature: External side mounting with NEMA 1 enclosure simplifies retrofit and field upgrades. Business Impact: faster installation, minimal panel disruption, and easier serviceability. Application: sidemount installations on external distribution equipment. Feature: Comprehensive voltage protection paths (320 L-N, 320 L-G, 320 N-G, 640 L-L) provides multi-line surge attenuation. Business Impact: broad-spectrum defense across distribution panels, enhancing reliability. Application: multi-line protection for MCCs and switchgear. Feature: 15-year warranty and UL 1449 certification deliver long-term reliability and regulatory confidence. Business Impact: lowers lifecycle risk and supports compliance programs. Application: sensitive automation and data-center ancillary loads. Feature: 277/480V wye rating with 4W+G configuration and external sidemount compatibility. Business Impact: versatile integration with existing electrical infrastructure and minimal retrofit costs. Application: new builds and modernization projects in industrial facilities. Feature: Basic feature package included reduces installation steps and ensures essential protection is in place quickly. Business Impact: accelerates project timelines and shortens time-to-protection. Application: EPCs and engineering teams seeking compliant, ready-to-install solutions.
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FAQs
SPD100480Y1L is designed for external sidemount installation, allowing mounting on the outside of electrical distribution gear. This simplifies retrofits, reduces panel ingress, and speeds up commissioning, making it ideal for upgrading existing systems without opening distribution panels.
The device provides a 100 kAIC interrupt rating and is rated for 277/480V wye (4W+G), with protection paths including 320 L-N, 320 L-G, 320 N-G, and 640 L-L to cover multi-line protection needs.
It is well suited for industrial controls, MCCs, switchgear, and automation panels operating at 277/480V; its sidemount design and broad line protection make it ideal for retrofit projects and new installations requiring robust transient suppression.
SPD100480Y1L is UL 1449 listed and comes in a NEMA 1 enclosure, supporting compliance in standard industrial environments and ensuring reliability in external mounting configurations.
With a 15-year warranty and a high-energy surge rating, the device reduces maintenance frequency and downtime, lowers replacement costs, and provides long-term protection for critical machinery and control systems.