Eaton SPD100400Y1L Surge Protection Device - UL 1449
Part Number: SPD100400Y1L
Quick Summary
SPD100400Y1L surge protection device protects electrical systems from transient surges in 3-phase, 4-wire power distribution. Surges damage sensitive equipment and uptime, so reliable protection is essential for manufacturing lines and data-intensive applications. This unit is UL 1449 listed, and global deployments may rely on CE marking or IP ratings depending on market. Together with a 15-year warranty and the external side mounting option, it helps shorten procurement cycles and improve facility reliability. Designed for external side mounting, 9.5 inch length, 5.4 inch width, and protection across L-N, L-G, N-G, L-L, the SPD aligns with industrial control panel needs and integration workflows.
Product Information
Extended Description
SPD100400Y1L Eaton: Surge Protection Device, SPD series, 100 kAIC, 230/400V 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
SPD100400Y1L
UPC
786685330006
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
230/400V 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 - SPD100400Y1L
Eaton’s SPD Series (Sidemount Versions) Data Sheet
SPD100400Y1L is a surge protection device designed to shield electrical systems from transient overvoltages in 230/400V wye networks. Key specifications include a 100 kAIC interrupt rating, operating voltages of 320 L-N, 320 L-G, 320 N-G, and 640 L-L, and a NEMA 1 enclosure for external mounting. Designed for external mounting to distribution equipment, SPD100400Y1L protects critical loads across 4W+G systems in industrial panels, manufacturing lines, and automation enclosures. Applications span machine control, panelboards, and power distribution where surge events threaten uptime, with basic feature package and 15-year warranty reducing maintenance surprises. Benefits include reduced equipment damage, lower repair costs, and easier regulatory compliance with UL 1449 listing, while enabling faster risk assessment and safer operation.
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FAQs
Yes. SPD100400Y1L is designed for external side mounting to distribution equipment, enabling protection without modifying internal enclosures. Mount it on the exterior of switchgear or panels using standard hardware while observing recommended clearances for a NEMA 1 arrangement. With a 9.5 in length and 5.4 in width, it fits retrofit projects and new installs alike.
The device offers a 100 kAIC interrupt rating with operating voltages of 320 L-N, 320 L-G, 320 N-G, and 640 L-L in 230/400V wye systems. This wide voltage window supports critical loads and motor drives, allowing consistent surge suppression across phase-to-neutral, phase-to-ground, and phase-to-phase paths, reducing the risk of equipment damage during transient events.
Yes, SPD100400Y1L is tailored for 4W+G networks (4 conductors plus ground) in industrial settings. Its NEMA 1 enclosure and external mounting path make it compatible with factory panels, machine controls, and distribution cabinets, while the 100 kAIC rating ensures reliable protection for sensitive automation equipment, sensors and drives against surges common in heavy industrial environments.
SPD100400Y1L carries UL 1449 listing, indicating it meets recognized safety and performance requirements for surge protection devices. This certification supports risk reduction and regulatory compliance for electrical installations. Additional regional requirements, such as CE marking or IP ratings, may apply depending on market, installation location, and applicable codes.
Maintenance is minimal with the basic feature package and a long 15-year warranty. By mitigating surge damage to drives, controllers, and relays, the SPD reduces unplanned downtime, repair costs, and parts replacement. In multi-site operations, standardized units like SPD100400Y1L streamline procurement, stocking, and service intervals, delivering measurable uptime and operational efficiency.