Eaton SPD120208Y3M Surge Protection Device - UL 1449
Part Number: SPD120208Y3M
Quick Summary
The Eaton SPD120208Y3M surge protection device protects electrical systems from transient surges in commercial and industrial panels. Many engineers struggle with finding compact, compliant protection that fits external mounting requirements. It carries UL 1449 certification and offers a 15-year warranty to ensure long-term protection, while its NEMA 1 enclosure supports rugged indoor installation. With 120 kAIC interrupt rating and a 120/208V wye configuration, this SPD balances performance and footprint. For procurement teams, the solution reduces downtime risk, simplifies installation, and aligns with standard protection strategies across power distribution systems. By selecting a sidemount SPD with surge counter and standard feature package, you gain reliability without sacrificing accessibility or serviceability, improving overall total cost of ownership.
Product Information
Extended Description
SPD120208Y3M Eaton: Surge Protection Device, SPD series, 120 kAIC, 120/208V wye (4W+G), Standard feature package and surge counter, NEMA 1 with internal disconnect enclosure, External side mount, 150 L-N, 150 L-G, 150 N-G, 300 L-L operating voltage
Product Name
Eaton SPD series surge protection device
Catalog Number
SPD120208Y3M
UPC
786685332246
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
120/208V wye (4W+G)
Enclosure
NEMA 1
Mounting Method
External side
Interrupt rating
120 kAIC
Operating voltage
150 L-N, 150 L-G, 150 N-G, 300 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 - SPD120208Y3M
Eaton’s SPD Series (Sidemount Versions) Data Sheet
External side mounting simplifies installation in already-assembled electrical spaces and reduces enclosure modifications, delivering faster commissioning and lower field labor costs. This design translates to a tangible business impact: improved panel density and easier retrofits in existing switchgear housings, enabling rapid protection upgrades for data centers, manufacturing lines, and commercial buildings. The device is rated for 120 kAIC, ensuring resilience against high-energy surges and minimizing equipment damage during extreme events, which directly improves uptime and asset life. The 120/208V wye (4W+G) configuration supports common commercial/industrial power systems, reducing design complexity and enabling plug-and-play compatibility with standard distribution architectures. The NEMA 1 enclosure provides indoor protection and straightforward installation on external surfaces, while the external side mounting simplifies integration with distribution equipment. A built-in surge counter offers visibility into surge activity, enabling proactive maintenance and informed procurement decisions. The standard feature package and included surge counter deliver value without extra accessory costs, supporting a lower total cost of ownership and easier regulatory compliance across facilities.
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FAQs
The SPD120208Y3M is designed for external side mounting, allowing installation adjacent to distribution equipment within a NEMA 1 enclosure. This configuration reduces space requirements and simplifies wiring by enabling a straightforward sidemount integration for retrofit projects or new builds in compact electrical rooms.
Key specs include a 120 kAIC interrupt rating, 120/208V wye configuration (4W+G), and operating voltages of 150 L-N, 150 L-G, 150 N-G, and 300 L-L. The device supports L-N, L-G, N-G, and L-L connections, making it suitable for typical commercial and light-industrial power systems.
Yes. With a NEMA 1 enclosure and external side mounting, this SPD is well-suited for external protection in industrial and commercial panels. Its rugged construction and high surge capability are ideal for protecting sensitive equipment in harsh environments while remaining easy to install and service.
The SPD120208Y3M is UL 1449 listed, confirming its surge protection performance and safety compliance. It also features a 15-year warranty, providing long-term assurance of protection, reliability, and support for critical power systems.
By reducing surge-related equipment damage and downtime, the SPD120208Y3M lowers maintenance and replacement costs. The built-in surge counter enables ongoing monitoring of surge activity, supporting proactive maintenance and informed procurement strategies that improve uptime and total cost of ownership.