Eaton SPM320480D1W Surge Protection Device - UL 1449
Part Number: SPM320480D1W
Quick Summary
Eaton SPM320480D1W surge protection device guards 480V delta systems from transient surges in industrial panels. When surges spike due to motor starts, switching events, or lightning, downtime and costly equipment damage can occur. This unit delivers 320 kA per phase protection across two modules within a rugged Max series design, housed in a NEMA 4X enclosure with an internal circuit breaker. It carries UL 1449 listing and CSA certifications, plus UL 1283 and RoHS compliance, underpinning safety and reliability in demanding environments. For OEMs and maintenance teams, it translates to improved power quality, predictable maintenance planning, and straightforward procurement during panel upgrades, with a long warranty coverage that reduces total cost of ownership.
Product Information
Extended Description
SPM320480D1W Eaton: Surge Protective Device, Max series, Two modules, 320 kA per phase, 480 Delta (3W+G), Standard with surge counter, NEMA 4X w/ internal circuit breaker
Product Name
Eaton SPD MAX series surge protection device
Catalog Number
SPM320480D1W
UPC
786685919225
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 Std. C22.2 No. 8-M1986 CSA Electrical Notice NO. 516 Edition 1 UL 1283
Voltage rating
480 Delta (3W+G)
Enclosure
NEMA 4X with internal circuit breaker
Type
Max series
Special features
Standard with surge counter
Feature → Business Impact → Application: The SPM320480D1W provides 320 kA per phase protection across two modules, delivering high-energy surge suppression that minimizes equipment damage during large transients. This translates to reduced downtime and lower replacement costs in manufacturing lines and critical facilities where large switching events are common. Application: data centers, machine shops, and outdoor panels requiring robust three-phase protection. Feature → Business Impact → Application: A NEMA 4X enclosure with an internal circuit breaker enables safer, weather-resistant protection in harsh environments and simplifies on-site maintenance. Application: outdoor switchgear, industrial enclosures, and exposed panel installations. Feature → Business Impact → Application: Standard surge counter support allows proactive maintenance planning and lifecycle management. Application: OEM panel builders and service teams needing traceable surge activity. Feature → Business Impact → Application: Comprehensive certifications including UL 1449, CSA, UL 1283, and RoHS compliance ensure regulatory alignment and faster procurement. Application: qualification-heavy projects in regulated industries. Feature → Business Impact → Application: A 15-year warranty (20 years with registration) lowers total cost of ownership and extends asset life in long-term capital projects. Application: facilities with extended asset lifespans and maintenance budgets. Feature → Business Impact → Application: 480V Delta (3W+G) compatibility supports modern industrial power topology while delivering reliable protection across equipment and controls. Application: panel upgrades and new installations in manufacturing and process environments.
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FAQs
When installing the SPM320480D1W in a 480V delta panel, ensure the enclosure is suitable for NEMA 4X environments and provide adequate clearance for heat dissipation. Connect phase L1, L2, L3, and the ground conductor per the three-phase plus ground configuration, and verify the unit’s internal circuit breaker is accessible for safe service procedures. Plan for service access to the surge counter for ongoing maintenance.
The device offers 320 kA per phase protection across two modules, designed to absorb high-energy transients common in industrial settings. Its Max series construction targets large surges from motor startups and switching events, helping prevent damage to downstream equipment, reduce unplanned downtime, and improve power quality in critical applications.
Yes. The unit is housed in a NEMA 4X enclosure with an internal circuit breaker, delivering weatherproof protection suitable for outdoor panels or harsh indoor environments. RoHS compliance and strict UL/CSA certifications further ensure safe operation in demanding conditions while facilitating compliant procurement.
Verify UL 1449 listing for surge protection performance, CSA certification for safety conformity, UL 1283 for noise immunity, and RoHS compliance for material restrictions. These certifications reduce procurement risk, support design approval, and streamline regulatory reviews for industrial installations.
The device carries a 15-year warranty from delivery, with a 20-year warranty option when registered. This long life minimizes replacement costs and downtime, while the internal surge counter supports predictive maintenance, contributing to lower operating expenses and improved asset reliability over the device’s service life.