Eaton SPM320480D3W Surge Protection Device - NEMA 4X
Part Number: SPM320480D3W
Quick Summary
Eaton SPD MAX SPM320480D3W is a surge protection device for industrial power systems facing transient voltage spikes. This solution targets the reliability challenges that lead to unplanned downtime, equipment damage, and reduced productivity in automation environments. It is UL 1449 listed, CSA certified, and RoHS compliant, with a rugged NEMA 4X enclosure and an internal circuit breaker to withstand harsh plant conditions. By combining robust protection with proactive maintenance features, it helps factories meet uptime targets while supporting compliant, safer installations. Designed for 480V delta 3W+G networks, it also complements broader protection strategies in electrical protection and circuit control applications.
Product Information
Extended Description
SPM320480D3W Eaton: Surge Protective Device, Max series, Two modules, 320 kA per phase, 480 Delta (3W+G), Standard with surge counter, NEMA 4X with internal circuit breaker
Product Name
Eaton SPD MAX series surge protection device
Catalog Number
SPM320480D3W
UPC
786685919621
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
CSA Std. C22.2 No. 8-M1986 UL 1283 CSA Electrical Notice NO. 516 Edition 1 UL 1449
Voltage rating
480 Delta (3W+G)
Enclosure
NEMA 4X with internal circuit breaker
Type
Max series
Special features
Standard with surge counter
Feature: Two modules and 320 kA per phase provide substantial transient energy handling for 480 Delta (3W+G) systems. Business Impact: Higher fault tolerance reduces downstream equipment stress, cutting repair costs and extending asset life. Application: Ideal for motor drives, controllers, and critical sensors in process automation environments. Feature: NEMA 4X enclosure with internal circuit breaker. Business Impact: Resilient protection against dust, water, and corrosion with built-in isolation improves field serviceability and safety. Application: Suitable for indoor and outdoor protection in harsh industrial areas where enclosure integrity matters. Feature: Standard surge counter. Business Impact: Real-time visibility into surge events supports proactive maintenance and faster troubleshooting. Application: Compliance-driven facilities and data-centric panels that require actionable status indicators. Feature: RoHS compliant with CSA and UL 1449 listings. Business Impact: Simplified regulatory due diligence and third-party trust, accelerating procurement cycles. Application: Global deployments requiring recognized safety and environmental standards. Feature: 15-year warranty (20 years with online registration). Business Impact: Long-term total cost of ownership reduction and predictable budgeting for protection investments. Application: Corporate reliability programs and OEM panel builds where warranty terms influence ROI. Feature: Compact two-module design with standard installation footprint. Business Impact: Easier retrofits and panel upgrades without extensive rewiring. Application: Modernizing existing electrical protection layouts within automation cells and switchgear closets.
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FAQs
The SPM320480D3W is rated for 480 Delta (3W+G) systems and uses a two-module design delivering up to 320 kA per phase, making it well-suited for high-energy industrial environments where robust transient protection is required.
This SPD is UL 1449 listed and CSA certified, with RoHS compliance, ensuring safety and regulatory alignment for global industrial installations and panel builds.
The unit features a NEMA 4X enclosure with an internal circuit breaker and a compact two-module footprint, enabling straightforward retrofit or new installations in standard protection panels with reliable field serviceability.
It carries a 15-year warranty from the date of delivery, extending to 20 years when registered on Eaton’s SPD site, providing long-term protection value and budgeting certainty.
By limiting voltage spikes, the SPM320480D3W reduces equipment wear, prevents outages, and lowers maintenance costs, delivering measurable uptime gains and extending the life of drives, controllers, and sensors.