Eaton SPM320240H1S Surge Protection Device - 320 kA per phase
Part Number: SPM320240H1S
Quick Summary
SPM320240H1S surge protection device delivers robust surge protection for main power circuits in industrial control panels. For engineers facing unpredictable transients, downtime and equipment damage can derail projects and erode margins. This unit is UL 1449 and UL 1283 listed with CSA certification and RoHS compliance, underscoring safety and regulatory alignment. The MAX series design uses two modules, 320 kA per phase, and a 240 delta high leg (4W+G) configuration, housed in a NEMA 4 enclosure with an internal circuit breaker to simplify commissioning. A surge counter provides asset-level visibility for maintenance planning, reinforcing reliability in manufacturing lines, data centers, and process facilities. These features translate to improved uptime, lower maintenance costs, and easier supplier qualification for EPC projects.
Product Information
Extended Description
SPM320240H1S 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 with internal circuit breaker
Product Name
Eaton SPD MAX series surge protection device
Catalog Number
SPM320240H1S
UPC
786685919164
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 circuit breaker
Type
Max series
Special features
Standard with surge counter
Feature → Business Impact → Application: The SPM320240H1S provides 320 kA per phase transient protection, reducing the risk of costly equipment damage and unplanned downtime in mission-critical panels. This capability translates to longer asset life and lower repair costs, ideal for manufacturing lines and data centers where uptime is paramount. Feature → Modular two-module MAX series design → Scalability and easier maintenance. The two-module arrangement allows targeted protection and straightforward replacement, minimizing panel downtime during service and enabling phased upgrades in growing plants. Feature → 240 delta high leg (4W+G) on B phase → Enhanced phase-to-phase protection in high-leg delta systems common in many industrial facilities. This configuration mitigates differential surges, supporting reliable control network operation. Feature → NEMA 4 enclosure with internal circuit breaker → Harsh-environment readiness and safe, compliant installation inside standard panels. This enclosure supports indoor/outdoor exposure in controlled environments while preserving fault-clearing capability and worker safety. Feature → Surge counter and RoHS/UL/CSA compliance → Monitoring visibility and regulatory alignment. The built-in counter simplifies trending and maintenance planning while certifications streamline procurement and commissioning in regulated facilities.
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FAQs
For installation in standard electrical panels, ensure the enclosure is suitable for the environment (NEMA 4 with internal circuit breaker). The unit weighs about 50 lb and measures 9.3 in deep, 17.5 in high, and 14.91 in wide, with two modules to enable modular protection. Verify panel space and clearances, and plan for the surge counter wiring to enable ongoing monitoring.
The device delivers 320 kA per phase protection and uses a 240 delta high leg configuration on the B phase, addressing high-energy transients in delta systems. UL 1449 and UL 1283 listings, plus CSA certification, ensure meeting strict safety standards while reducing risk of nuisance outages and equipment damage in harsh environments.
Yes. The SPM320240H1S is RoHS compliant and carries UL 1449 and UL 1283 certifications, along with CSA Std. C22.2 No. 8-M1986 and CSA Electrical Notice No. 516 Edition 1. This combination supports regulatory compliance, safer procurement, and smoother third-party inspections for industrial facilities.
Eaton provides a warranty of 15 years from the date of delivery, with an extension to 20 years when registered on Eaton’s SPD portal. This long-term coverage, combined with documented certifications, helps protect total cost of ownership and supports maintenance planning for critical infrastructure.
The two-module design enables targeted protection with modular replacement, minimizing downtime during service. As facilities scale, additional protection can be added or replaced module-by-module without overhauling entire protection schemes. This approach reduces spare-part inventories and supports phased expansion in production lines and data center cabinets.