Eaton SPM320240H3U Surge Protection Device - UL/CSA
Part Number: SPM320240H3U
Quick Summary
Eaton SPD MAX surge protection device protects critical electrical systems in industrial facilities. This protector targets transient overvoltages that threaten uptime and equipment life. Unplanned surges from utility events or motor startups can cause costly downtime, and protection must be reliable and timely. The unit carries CSA and UL certifications (UL 1449, UL 1283) and RoHS compliance, ensuring regulatory alignment and safe operation in harsh environments. With a NEMA 4 enclosure and internal terminal breaker, it withstands demanding plant conditions while simplifying installation. The SPM320240H3U supports 240 delta high-leg configurations (4W+G) and two-module protection, delivering robust surge capacity. For engineers seeking long-term reliability and reduced maintenance, this model offers excellent total cost of ownership and compatibility with Eaton's SPD ecosystem.
Product Information
Extended Description
SPM320240H3U 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 4 w/ internal terminal breaker
Product Name
Eaton SPD MAX series surge protection device
Catalog Number
SPM320240H3U
UPC
786685919577
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 1449 UL 1283 CSA Electrical Notice NO. 516 Edition 1
Voltage rating
240 delta (4W+G)
Enclosure
NEMA 4 with internal terminal breaker
Type
Max series
Special features
Standard with surge counter
Feature → Business Impact → Application: The SPM320240H3U delivers 320 kA per phase protection across two modules, dramatically reducing the risk of voltage transients damaging sensitive equipment and extending asset life in demanding environments. This translates to measurable uptime gains and lower replacement costs in manufacturing lines and distribution panels. Application-wise, it supports 240 delta high-leg (4W+G) configurations, enabling seamless integration with common industrial power systems while minimizing nuisance tripping during startup surges. The NEMA 4 enclosure with an internal terminal breaker simplifies installation and maintenance in both outdoor and harsh indoor spaces, reducing commissioning time and enhancing reliability on oil rigs, steel plants, and processing facilities. RoHS compliance and stringent certifications (UL 1449, UL 1283, CSA) ensure regulatory alignment, risk mitigation, and safe operation across global sites. The standard surge counter provides ongoing visibility for proactive maintenance and energy management, contributing to a lower total cost of ownership over the device lifecycle.
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FAQs
The SPM320240H3U fits industrial environments requiring robust transient protection, including manufacturing lines, data centers, utility rooms, and outdoor electrical enclosures. Its 320 kA per phase capacity and 240 delta high-leg compatibility make it a strong choice for critical feeder protection, helping minimize downtime and safeguard sensitive drives and controls.
Key specs include a 320 kA per phase surge capacity, 240 delta high-leg (4W+G) configuration, two-module protection, and a NEMA 4 enclosure with internal terminal breaker. It also carries RoHS compliance and certifications to UL 1449, UL 1283, and CSA standards, ensuring safe operation in demanding environments.
The device is UL 1449 and UL 1283 listed, CSA certified (C22.2 No. 8-M1986), and RoHS compliant. These certifications support regulatory compliance across North American facilities and help mitigate certification audits, warranty eligibility, and maintenance planning for regulated industries.
An internal terminal breaker simplifies wiring, reduces wiring errors, and speeds installation. It also enables straightforward fault isolation and quick reset after surges, minimizing downtime. Combined with the NEMA 4 enclosure, it offers reliable protection in variable environments and eases field commissioning and servicing.
Eaton provides a 15-year warranty from delivery, extended to 20 years when registered on Eaton's SPD portal. This long warranty lowers lifecycle costs by reducing replacement and service expenses, improves budgeting predictability, and enhances asset protection for mission-critical electrical systems.