Eaton SPM320480Y1S Surge Protection Device - RoHS
Part Number: SPM320480Y1S
Quick Summary
The Eaton SPM320480Y1S surge protection device protects critical electrical systems from transient overvoltages in commercial and industrial power distribution. Facing equipment damage and downtime during disturbances, engineers need reliable protection that doesn’t complicate maintenance. It carries UL 1283 and UL 1449 listings, CSA C22.2 No. 8, and RoHS compliance, with a robust NEMA 4 enclosure and an internal circuit breaker for rugged environments. With its two-module design and 320 kA per phase rating, this SPD MAX solution delivers dependable protection for critical loads, while the built-in surge counter supports straightforward monitoring and compliance reporting. This combination translates into reduced risk, lower maintenance costs, and improved system uptime for your facility.
Product Information
Extended Description
SPM320480Y1S Eaton: Surge Protective Device, Max series, Two modules, 320 kA per phase, 277/480 Wye (4W+G), Standard with surge counter, NEMA 4 with internal circuit breaker
Product Name
Eaton SPD MAX series surge protection device
Catalog Number
SPM320480Y1S
UPC
786685919249
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 1283 UL 1449 CSA Std. C22.2 No. 8-M1986 CSA Electrical Notice NO. 516 Edition 1
Voltage rating
277/480 Wye (4W+G)
Enclosure
NEMA 4 with internal circuit breaker
Type
Max series
Special features
Standard with surge counter
Two-module architecture provides staged protection and higher per-phase surge capacity, delivering a margin that reduces damaged components and downtime. In 277/480 V Wye systems, this configuration supports scalable protection for large loads and critical equipment, enabling easier upgrade paths as facility demands grow. The 320 kA per phase rating delivers robust transient suppression, limiting voltage spikes that can degrade drives, PLCs, and motors, helping extend equipment life and reduce replacement costs. The NEMA 4 enclosure with an internal circuit breaker protects in harsh indoor environments and simplifies installation within standard panels, lowering installation costs and enabling quick retrofits. A built-in surge counter offers visibility into event frequency, supporting preventive maintenance planning and regulatory reporting. RoHS compliance and listings (UL/CSA) reduce compliance risk and QA concerns across the supply chain. The 277/480 V Wye (4W+G) rating minimizes wiring changes and ensures coordination with upstream protection, streamlining panel integration and triggering faster project timelines.
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FAQs
Ensure the panel supports 277/480 V Wye (4W+G) and has adequate space for a unit measuring 14.91 in wide, 17.5 in high, and 9.3 in deep. Follow EN/UL panel mounting practices, connect to line and load per the catalog, and verify the internal circuit breaker is properly sized. Grounding and bonding should follow local codes for surge protection devices.
The device provides 320 kA per phase surge capability, rated for 277/480 V Wye (4W+G), and comes in a two-module configuration within an SPD MAX framework. It features a NEMA 4 enclosure with an internal circuit breaker and includes a surge counter. It carries UL 1283, UL 1449, and CSA C22.2 No. 8-M1986 listings, plus RoHS compliance.
Yes. The two-module, 320 kA per phase SPD supports protection for critical loads in data centers, manufacturing lines, and other high-demand environments. Its 277/480 V Wye rating aligns with common industrial power distribution, while the NEMA 4 enclosure and internal breaker simplify panel integration and reduce retrofit complexity in both new builds and upgrades.
Rely on UL 1283 and UL 1449 listings for electrical safety and transient suppression performance, CSA Std. C22.2 No. 8-M1986 for Canadian and North American compliance, and CSA Electrical Notice NO. 516 Edition 1. RoHS compliance supports environmental standards. The RoHS and listings help streamline procurement and QA audits across installers and end users.
The built-in surge counter simplifies monitoring and preventive maintenance, enabling timely replacements before downstream equipment is affected. With a 320 kA per phase rating and UL/CSA listings, expected downtime and maintenance costs decline as transient events are mitigated. Over time, the device helps protect motors, drives, and controls, delivering a favorable return on investment through equipment longevity and reduced outages.