Eaton SPM320220Y1W Surge Protection Device - UL 1449 & NEMA 4X
Part Number: SPM320220Y1W
Quick Summary
SPM320220Y1W surge protection device from Eaton protects electrical systems in commercial and industrial environments. Surges threaten equipment life, downtime, and warranty costs, making reliable protection essential. It carries UL 1449 and UL 1283 listings with CSA certifications, supporting safe and compliant operation across energy-intensive facilities. The unit is specified for 127/220 V Wye (4W+G) networks and comes in a rugged NEMA 4X enclosure for damp or harsh locations. For manufacturers and facilities teams, this translates to easier installation, clearer diagnostics with the built-in surge counter, and longer asset life while maintaining compliance and reducing total cost of ownership. This combination reduces commissioning risk and accelerates time-to-protect.
Product Information
Extended Description
SPM320220Y1W Eaton: Surge Protective Device, Max series, Two modules, 320 kA per phase, 127/220 Wye (4W+G), Standard with surge counter, NEMA 4X with internal circuit breaker
Product Name
Eaton SPD MAX series surge protection device
Catalog Number
SPM320220Y1W
UPC
786685919027
Product Length/Depth
9.3 in
Product Height
17.5 in
Product Width
14.91 in
Product Weight
50 lb
Warranty
15 years from the date of delivery (20 years when registered on www.eaton.com/spd)
Compliances
RoHS Compliant
Certifications
UL 1449 CSA Std. C22.2 No. 8-M1986 CSA Electrical Notice NO. 516 Edition 1 UL 1283
Voltage rating
127/220 Wye (4W+G)
Enclosure
NEMA 4X with internal circuit breaker
Type
Max series
Special features
Standard with surge counter
Two-module Max series design provides robust surge handling up to 320 kA per phase, distributing transient energy across both modules. This arrangement increases protection reliability and reduces the likelihood of a single point of failure, delivering consistent performance in high-energy events. Typical applications include data centers, manufacturing lines, and heavy equipment feeders where uptime matters. NEMA 4X enclosure with an internal circuit breaker enables direct installation in damp or harsh environments without additional enclosures. The integrated protection simplifies wiring and reduces panel space, cutting installation time and material costs while improving protection reach across the facility. Standard with surge counter provides real-time status and fault-trend visibility, streamlining preventive maintenance and asset management. This feature supports compliance audits and helps maintenance teams schedule replacements before a failure occurs. Rated for 127/220 V Wye systems (4W+G), the unit fits common facility power distributions and simplifies selection for retrofit projects. Its compatibility with standard Eaton protection schemes ensures coordinated protection across upstream breakers and downstream equipment. RoHS compliant and UL/CSA certified, the SPM320220Y1W helps procurement meet global compliance requirements while reducing risk of non-conforming components. The 15-year warranty (20 years when registered) reinforces long-term value and lowers total cost of ownership.
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FAQs
Installers should plan for a 127/220 V Wye configuration with four-wire grounding (4W+G) and place the unit in appropriate spaces since the enclosure is NEMA 4X rated. The device includes an internal circuit breaker, reducing the need for extra protective hardware and simplifying wiring. Its two-module design also supports straightforward fault isolation during commissioning.
The 127/220 V Wye rating aligns with common facility power distributions, and the two-module Max series construction provides robust energy handling up to 320 kA per phase. This combination minimizes transient damage on downstream equipment, enhances protection coverage for sensitive devices, and supports straightforward retrofits in existing electrical rooms.
Yes. The device carries UL 1449 and UL 1283 listings, along with CSA certifications, confirming electrical safety and performance. These certifications facilitate regulatory compliance and supplier qualification for critical infrastructure projects, reducing procurement risk and speeding up approvals in regulated industries.
The integrated surge counter provides real-time event logging and fault visibility, enabling proactive maintenance and accurate diagnostics. By tracking surge occurrences, maintenance teams can schedule inspections before failures occur, optimize replacement timing, and demonstrate protective performance during audits or asset reviews.
The unit carries a 15-year warranty from delivery, with a 20-year warranty option when registered on Eaton’s SPD portal. This extended coverage lowers total cost of ownership, supports long-term budgeting, and offers confidence in protection against surge-related equipment damage over multiple facility cycles.