Eaton SPM120240H3X Surge Protection Device - NEMA 4X
Part Number: SPM120240H3X
Quick Summary
The Eaton SPM120240H3X surge protection device protects critical electrical systems from transient overvoltages in industrial panels and data centers. This helps prevent unexpected downtime and equipment damage caused by lightning, switching surges, or grid disturbances. The unit carries UL 1449, UL 1283, and CSA certifications, with RoHS compliance ensuring responsible material use, while the NEMA 4X enclosure supports harsh environments. For facilities aiming to maximize uptime, deployability, and regulatory alignment, this SPD MAX series product offers robust protection combined with long-term cost savings and straightforward maintenance.
Product Information
Extended Description
SPM120240H3X Eaton: Surge Protective Device, Max series, Single module, 120 kA per phase, 240 Delta high leg (4W+G) on B phase, Standard with surge counter, NEMA 4X with internal terminal block
Product Name
Eaton SPD MAX series surge protection device
Catalog Number
SPM120240H3X
UPC
786685914800
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
240 delta (4W+G)
Enclosure
NEMA 4X with internal terminal block
Type
Max series
Special features
Standard with surge counter
Feature → Business Impact → Application: 120 kA per phase surge capacity delivers strong transient suppression, reducing the risk of component failure and unplanned outages in high-load industrial systems. This translates to improved equipment reliability, lower maintenance costs, and extended service life for drives, PLCs, and automation panels. Application: data centers and manufacturing lines using 240 V delta networks gain dependable protection against surges, with minimized downtime and safer operation. Feature → Business Impact → Application: 240 delta high leg (4W+G) support ensures targeted protection for critical 4-wire circuits, enabling compliant installation in standard 240 V delta configurations. Application: motor control centers and feeder panels requiring precise phase protection. Feature → Business Impact → Application: NEMA 4X enclosure with internal terminal block provides rugged, corrosion-resistant mounting and simplified wiring, reducing field wiring errors and installation time in outdoor or damp environments. Application: outdoor enclosures or washdown areas in process industries. Feature → Business Impact → Application: standard surge counter aids maintenance teams with verifiable protection activity, supporting proactive asset management and fault tracing. Application: facilities needing auditable protection performance. Feature → Business Impact → Application: RoHS compliant construction aligns with sustainability goals and regulatory expectations, facilitating procurement for sensitive applications. Application: government, healthcare, and industry-grade installations seeking compliant components.
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FAQs
The SPM120240H3X is designed for 240V delta (4W+G) configurations with an internal terminal block for straightforward wiring. Use compatible conductors and adhere to local electrical codes. The enclosure is NEMA 4X, enabling secure installation in damp or outdoor environments. Ensure proper clearances and alignment with the device’s mounting pattern to maintain surge protection performance.
This SPD provides 120 kA per phase protection, enabling effective mitigation of large transient events. This rating directly reduces the likelihood of insulation damage and downstream failures in motor drives, transformers, and control panels, improving uptime and extending the life of connected equipment in demanding industrial settings.
Yes. The device is designed with a NEMA 4X enclosure, offering excellent protection against dust, water, and corrosive environments. It carries UL 1449 and UL 1283 certifications, along with CSA Std. C22.2 No. 8-M1986, validating safety and performance in industrial applications.
The SPD MAX series includes a 15-year warranty from the date of delivery, extending to 20 years when registered on Eaton’s SPD portal. This coverage reduces total cost of ownership by lowering replacement and maintenance expenses while providing confidence in long-term protection for critical assets.
Standard with a surge counter, the device enables straightforward monitoring of surge events and protection activity. This supports proactive maintenance planning, assists with incident analysis, and helps validate protection for regulatory compliance and asset management programs.