Eaton SPM320240H3W Surge Protection Device - UL 1449 Listed
Part Number: SPM320240H3W
Quick Summary
Eaton SPM320240H3W surge protection device protects critical electrical systems in industrial facilities, from manufacturing lines to data centers. The device helps prevent costly outages by diverting transient surges away from equipment and sensitive controls. UL 1449, UL 1283, and CSA certifications reinforce safety and reliability, while RoHS compliance supports regulatory and environmental standards. Built for two-module configurations with a 320 kA per phase rating and a 240 delta (4W+G) connection, it fits standard NEMA 4X enclosures and includes an internal circuit breaker and surge counter for easy monitoring. This combination delivers a robust protection strategy that reduces downtime, extends equipment life, and simplifies maintenance planning for engineering teams.
Product Information
Extended Description
SPM320240H3W Eaton: Surge Protective Device, Max series, Two modules, 320 kA per phase, 240 Delta high leg (4W+G) on B phase, Standard with surge counter, NEMA 4X w/ internal circuit breaker
Product Name
Eaton SPD MAX series surge protection device
Catalog Number
SPM320240H3W
UPC
786685919584
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 Electrical Notice NO. 516 Edition 1 UL 1283 CSA Std. C22.2 No. 8-M1986
Voltage rating
240 delta (4W+G)
Enclosure
NEMA 4X with internal circuit breaker
Type
Max series
Special features
Standard with surge counter
Feature: 320 kA per phase surge rating provides robust transient protection. Business impact: reduces equipment damage and downtime, lowering maintenance costs and increasing line uptime. Application: ideal for motor drives, switchgear, and control panels in manufacturing and process facilities using 240 delta (4W+G) configurations. Paragraph 2: Feature: two-module configuration offers scalable protection and improved fault tolerance. Business impact: simplifies installation planning and field service, enabling staged upgrades without extended panel downtime. Application: retrofit projects and new builds where space permits two compact modules in standard protections enclosures. Paragraph 3: Feature: NEMA 4X enclosure with internal circuit breaker delivers weather resistance and safe fault isolation. Business impact: supports outdoor or harsh environments while maintaining serviceability. Application: exposed equipment rooms, outdoor bays, and challenging plant environments. Paragraph 4: Feature: built-in surge counter enhances monitoring and traceability. Business impact: improves maintenance planning and post-event analysis, driving lower total cost of ownership. Application: facilities with regulatory reporting needs and centralized protection dashboards. Paragraph 5: Feature: RoHS compliant with UL 1449 and UL 1283 certifications ensures regulatory alignment. Business impact: reduces compliance risk and simplifies procurement audits. Application: industrial facilities pursuing RoHS and CSA compliance while maintaining high protection standards.
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FAQs
Ensure panel space accommodates the two-module design and leaves room for wiring access. The device uses a standard NEMA 4X enclosure with an internal circuit breaker, so verify mounting clearance, conduit connections, and torque specs per the Eaton catalog. Plan for minimal downtime by scheduling installation during a maintenance window and verify compatibility with your panel's wiring diagrams.
The 320 kA per phase rating specifies the maximum surge energy the protector can safely divert per phase. In 240 delta (4W+G) configurations this translates to strong protection for motors, drives, and control circuits against high-energy transients, reducing the risk of equipment damage and unplanned outages while supporting reliable system operation.
Yes, the unit is designed with a NEMA 4X enclosure, which provides weather resistance and suitability for semi-outdoor or challenging plant environments. For outdoor installations, ensure the enclosure remains within specified temperature and exposure limits and that installation follows applicable electrical codes and manufacturer guidelines.
The SPM320240H3W carries UL 1449 and UL 1283 certifications and CSA notices, along with RoHS compliance. These certifications validate safety performance and regulatory adherence, facilitating procurement, risk assessment, and audits across regulated industries such as manufacturing, data centers, and process facilities.
ROI comes from reduced downtime, extended equipment life, and lower maintenance costs due to fewer transient-induced failures. Features like the built-in surge counter simplify event tracking, while the two-module design enables scalable protection with minimal disruption, delivering predictable maintenance windows and improved total cost of ownership.