Eaton SPM320240S3U Surge Protection Device - UL 1449
Part Number: SPM320240S3U
Quick Summary
The Eaton SPM320240S3U surge protection device protects 120/240 V electrical systems in commercial and industrial panels. Unprotected equipment and downtime from transient surges can drain productivity and raise maintenance costs. Certified to UL 1449 and CSA standards, with RoHS compliance, this SPD supports regulated facilities. Its two-module design in a NEMA 4 enclosure with an internal terminal breaker simplifies installation, reduces wiring complexity, and enables faster field service and easier compliance documentation. A built-in surge counter enables straightforward performance tracking for ROI and helps stakeholders justify protection investments. In short, it combines rugged protection with easy maintenance.
Product Information
Extended Description
SPM320240S3U Eaton: Surge Protective Device, Max series, Two modules, 320 kA per phase, 120/240 split phase, Standard with surge counter, NEMA 4 w/ internal terminal breaker
Product Name
Eaton SPD MAX series surge protection device
Catalog Number
SPM320240S3U
UPC
786685919454
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 CSA Std. C22.2 No. 8-M1986 UL 1283
Voltage rating
120/240 V
Enclosure
NEMA 4 with internal terminal breaker
Type
Max series
Special features
Standard with surge counter
Two-module SPD MAX series with a 320 kA per phase rating delivers robust transient suppression, reducing the risk of damage to critical loads and minimizing unplanned downtime. This directly translates to higher equipment uptime, fewer emergency service calls, and improved productivity in panels feeding motors, drives, and PLCs. The device is designed for 120/240 V split-phase systems, making it a natural fit for service entrances, MCCs, and data-center classroom environments where fast, reliable protection matters. The NEMA 4 enclosure with an internal terminal breaker enhances durability in exposed or damp installations and simplifies wiring, which lowers installation labor and error potential. A built-in surge counter provides verifiable protection performance data for audits, maintenance planning, and ROI justification. RoHS compliance and proven UL CSA certifications reinforce reliability and regulatory alignment, while the standard warranty offers long-term peace of mind.
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FAQs
The SPM320240S3U is Eaton’s SPD MAX surge protection device designed for 120/240 V split-phase panels in commercial, industrial, and data-center environments. It provides transient suppression with two modules rated for 320 kA per phase, housed in a rugged NEMA 4 enclosure with an internal terminal breaker for safe field installation.
Key specifications include a 120/240 V voltage rating, 320 kA per phase protection, two-module architecture, NEMA 4 enclosure with internal terminal breaker, and a built-in surge counter. It is RoHS compliant and carries UL 1449 and CSA certifications for reliable protection in regulated facilities.
Yes. It is designed for 120/240 V split-phase systems common in service panels, MCCs, and switchgear. The two-module design and internal terminal breaker simplify wiring, while the NEMA 4 enclosure supports indoor and outdoor installations, improving protection without extensive panel redesign.
It carries UL 1449 and CSA certifications, including CSA Electrical Notice No. 516 Edition 1 and CSA Std. C22.2 No. 8-M1986, along with RoHS compliance. These approvals support regulatory compliance and safe integration into controlled environments.
By shielding critical loads from surges, it reduces equipment damage and downtime, lowering maintenance costs. The built-in surge counter enables performance tracking, supporting ROI justification, while a 15-year warranty (20 years with registration) lowers total cost of ownership.