Eaton SPD100480Y3P Surge Protection Device - UL 1449
Part Number: SPD100480Y3P
Quick Summary
SPD100480Y3P is a surge protection device designed to safeguard 277/480V electrical distributions in industrial environments. Manufacturers and integrators often face costly downtime from transient overvoltages; this unit provides fast clamping and reliable external side mounting to minimize disruption. UL 1449 certification ensures safety, while a NEMA 4X stainless steel enclosure guards against dust, moisture, and corrosion in harsh facilities. With a 15-year warranty and an integrated surge counter, it supports traceability and long-term maintenance planning. This combination delivers practical, business-ready protection for electrical distribution panels and improves uptime and asset longevity.
Product Information
Extended Description
SPD100480Y3P Eaton: Surge Protection Device, SPD series, 100 kAIC, 277/480V wye (4W+G), Standard feature package and surge counter, NEMA 4X stainless steel 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
SPD100480Y3P
UPC
786685340074
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
Standard feature package and surge counter
Voltage rating
277/480V wye (4W+G)
Enclosure
NEMA 4X
Mounting Method
External side
Enclosure material
Stainless steel
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 - SPD100480Y3P
Eaton’s SPD Series (Sidemount Versions) Data Sheet
Feature: 100 kAIC interrupt rating provides robust protection against high-energy surges. Business impact: reduces the risk of equipment damage from grid disturbances, lowering unplanned downtime and maintenance costs. Application: ideal for 277/480V four-wire plus ground (4W+G) systems in industrial facilities. Feature: L-N, L-G, N-G, and L-L operating modes with defined voltage allowances (320 L-N, 320 L-G, 320 N-G, 640 L-L). Business impact: precise fault-current routing minimizes potential arc flash exposure and preserves downstream equipment. Application: protects motors, drives, and MCCs across manufacturing lines. Feature: NEMA 4X stainless steel enclosure with external side mounting. Business impact: durable protection against dust, water ingress, and corrosion while simplifying installation in outdoor or harsh indoor environments. Application: panel-mounted distribution right where space is at a premium. Feature: standard feature package and surge counter. Business impact: enables ongoing monitoring and compliance reporting without extra components. Application: easy integration into asset management programs for facility managers. Feature: UL 1449 listed device with a 15-year warranty. Business impact: long-term reliability and total cost of ownership reduction, supporting maintenance planning and ROI. Application: designed for industrial protection programs needing proven safety and lifecycle support.
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FAQs
SPD100480Y3P is designed for external side mounting on standard electrical distribution equipment. Begin by verifying panel clearance and ensuring the enclosure is free of debris. Connect L-N, L-G, N-G, and L-L lines per the wiring diagram, secure the unit to the enclosure using the included hardware, and verify the surge counter is reset. Reference the installation manual for exact torque specs and safety precautions to maintain UL 1449 compliance.
Yes. The SPD100480Y3P is UL 1449 listed, and it is housed in a NEMA 4X stainless steel enclosure designed to resist dust, moisture, and corrosion. This makes it suitable for both indoor and challenging environments commonly found in industrial facilities, providing reliable protection for critical electrical distributions.
The device offers a 100 kAIC interrupt rating and protection across L-N, L-G, N-G, and L-L configurations. This multi-mode protection helps guard 277/480V four-wire systems against a range of surge events, supporting motor drives, transformers, and MCCs in manufacturing settings.
Yes. The product is specifically designed for external side mounting, enabling installation adjacent to distribution gear without occupying interior panel space. This simplifies retrofits and new builds, reduces wiring complexity, and aligns with external protection strategies for large electrical rooms.
SPD100480Y3P carries a 15-year warranty, offering long-term protection and predictable maintenance planning. By reducing surge-related equipment damage and downtime, facilities can realize lower maintenance costs and improved uptime, delivering a favorable total cost of ownership in harsh operating environments.