Eaton SPM300240S3X Surge Protection Device - UL 1449
Part Number: SPM300240S3X
Quick Summary
Eaton SPD MAX SPM300240S3X surge protection device protects electrical systems from transient overvoltages in commercial and industrial electrical panels. Power surges cause equipment damage and unpredictable downtime, complicating maintenance budgets. This unit is backed by robust certifications and environmental resilience to support critical operations—UL 1449, UL 1283, and CSA standards with a RoHS-compliant footprint, plus a NEMA 4X enclosure for harsh environments. By combining monitored protection with a scalable, easy-to-install form factor, it enables reliable uptime while aligning with quality and safety mandates. The result is safer power distribution and reduced total cost of ownership for facilities relying on 120/240 V split-phase systems.
Product Information
Extended Description
SPM300240S3X Eaton: Surge Protective Device, Max series, Single module, 300 kA per phase, 120/240 split phase, Standard with surge counter, NEMA 4X with internal terminal block
Product Name
Eaton SPD MAX series surge protection device
Catalog Number
SPM300240S3X
UPC
786685918679
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 UL 1283 CSA Electrical Notice NO. 516 Edition 1 CSA Std. C22.2 No. 8-M1986
Voltage rating
120/240 V
Enclosure
NEMA 4X with internal terminal block
Type
Max series
Special features
Standard with surge counter
The SPM300240S3X is a surge protection device built for demanding electrical environments, offering clear business value through structured features. Feature → Business Impact → Application: 300 kA per phase protection minimizes the risk of damaging transients in critical feeder lines, reducing downstream equipment failures and maintenance costs in manufacturing lines and data racks. This translates to improved uptime and predictable production schedules in industrial facilities, particularly where large motors and controls operate at 120/240 V. Feature → Application → Benefit: Single module design simplifies cabinet layout and wiring, enabling faster panel wiring and easier retrofits in upgrade projects, while an internal terminal block supports clean, secure connections. Feature → Application → Benefit: Standard with a surge counter provides real-time monitoring and ease of maintenance planning, which helps facilities track surge events and justify protection investments during audits. Feature → Application → Benefit: NEMA 4X enclosure and RoHS compliance ensure durable installation in harsh environments and alignment with sustainability and regulatory requirements, reducing revision cycles during facility upgrades. Feature → Application → Benefit: Certifications including UL 1449, UL 1283, and CSA standards confirm safety and performance, empowering engineers to specify with confidence across critical power-distribution panels. Feature → Application → Benefit: 120/240 V split-phase compatibility supports a wide range of commercial, industrial, and process-control applications, ensuring seamless integration with existing electrical architectures and minimizing additional hardware costs.
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FAQs
Installation follows the manufacturer datasheet for a single-module SPD with a 120/240 V split-phase input. Connect line and load conductors to the internal terminal block, secure the unit within a NEMA 4X enclosure, and verify the surge counter is operational. The compact form factor simplifies retrofits and reduces wiring complexity in new panels, while maintaining compliance with UL and CSA protections.
Key specs include a 120/240 V rating, a per-phase surge capacity of 300 kA, a single-module format, and a split-phase configuration. It is RoHS compliant, with a NEMA 4X enclosure and standard surge counter. The product complies with UL 1449, UL 1283, and CSA standards, supporting reliable protection in demanding environments.
Yes. The device uses a NEMA 4X enclosure with an internal terminal block designed for resilience in demanding settings. RoHS compliance and industry certifications further ensure safe operation in dusty, damp, or outdoor-adjacent applications. For best results, mount in a protected location and follow installation clearances recommended in the datasheet.
The unit is certified to UL 1449 and UL 1283 standards, with CSA Electrical Notice No. 516 Edition 1 and CSA Std. C22.2 No. 8-M1986. It is RoHS compliant, and the enclosure is rated for NEMA 4X, supporting compliant use in a wide range of industrial and commercial environments.
By reducing transient damage and downtime, the SPD helps protect critical drives, controllers, and electronics, lengthening equipment life. The 15-year warranty (20 years when registered) adds long-term value, while the surge counter enables proactive maintenance planning. These factors collectively lower maintenance costs and improve process reliability in facilities with frequent power disturbances.