Eaton SPM300480D3T Surge Protection Device - NEMA 4
Part Number: SPM300480D3T
Quick Summary
SPM300480D3T surge protection device protects electrical panels from transient overvoltage in 480V delta industrial networks. Frequent surges cause unexpected downtime and equipment damage, stressing maintenance budgets. Certifications include UL 1449 and UL 1283 with CSA listings, ensuring safety and performance, plus RoHS compliance for restricted substances. Designed for the Max series and compatible with standard panels, it stabilizes uptime, protects drives and controllers, and lowers total cost of ownership through reliable surge protection and easier maintenance. For procurement teams, the unit’s 15-year warranty (20 years when registered) provides a long-term risk reduction and predictable budgeting. Its compact 300 kA per phase rating delivers robust protection without overdesign, helping panel builders meet harsh environment demands.
Product Information
Extended Description
SPM300480D3T Eaton: Surge Protective Device, Max series, Single module, 300 kA per phase, 480 Delta (3W+G), Standard with surge counter, NEMA 4 w/ internal terminal breaker
Product Name
Eaton SPD MAX series surge protection device
Catalog Number
SPM300480D3T
UPC
786685918815
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
480 Delta (3W+G)
Enclosure
NEMA 4 with internal terminal breaker
Type
Max series
Special features
Standard with surge counter
Feature → Business Impact → Application: 300 kA per phase protection for 480 Delta (3W+G) systems provides robust transient mitigation. Business Impact → This high rating reduces damage to drives, controllers, and sensors, lowers unplanned downtime, and minimizes spare-part costs across the line. Application → Ideal for motor control centers, packaging lines, and process equipment facing frequent voltage transients in harsh manufacturing environments, where reliability directly drives productivity. Feature → NEMA 4 enclosure with internal terminal breaker and standard surge counter enhances ruggedness and installation simplicity. Business Impact → The rugged enclosure protects against dust and water ingress, minimizes field wiring complexity, and the surge counter enables proactive maintenance planning. Application → Suitable for indoor/outdoor installations and retrofit projects in harsh production areas, including outdoor enclosures and damp spaces. Feature → Certifications and compliance: UL 1449, UL 1283, CSA listings, and RoHS. Business Impact → Regulators and procurement teams gain confidence, with audit-ready documentation and reduced compliance risk. Application → Works for facilities with stringent safety programs, government tenders, and OEM panel builds requiring verified electrical protection. Feature → 480 Delta (3W+G) compatibility ensures correct protection for common industrial power systems. Business Impact → Reduces mismatch risk, improves coordination with upstream protection, and minimizes nuisance trips caused by improper protection settings. Application → Suitable for manufacturing lines, distribution panels, and large facility power rooms using 480V delta networks. Feature → Warranty and ownership: 15-year warranty from delivery (20 years with registration) demonstrates long-term support. Business Impact → Improves total cost of ownership, reduces risk of unexpected replacement costs, and simplifies budgeting for capital projects. Application → Suitable for OEMs, integrators, and end-users seeking predictable reliability across multi-year plant refresh cycles. Feature → Compatibility and installation efficiency: Seamless integration with Eaton Max series panels and standard interior wiring practices supports quick field deployment. Business Impact → Reduces commissioning time, minimizes mis-wiring risk, and improves technician confidence during upgrades. Application → Suitable for upgrades in existing control panels, new builds, and retrofit projects across electronics, packaging, and material handling lines.
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FAQs
Begin by confirming the panel is compatible with a Max series SPD and that you have a suitable NEMA 4 enclosure. Mount the unit per the included diagram, connect phase and ground conductors to the internal terminal breaker, and wire the surge counter terminals if monitoring is required. Ensure proper clearances and verify continuity before energizing.
The device provides up to 300 kA per phase protection for 480V delta (3W+G) systems, designed to divert transient energy away from critical loads. This rating supports motor drives, controllers, and PLC inputs, reducing the likelihood of nuisance trips and extending component life in demanding manufacturing environments.
Yes. It features a NEMA 4 enclosure with an internal terminal breaker for rugged indoor and outdoor installations, plus RoHS compliance and multi‑certification support. For outdoor use, ensure proper weather sealing and clearance, and leverage the surge counter to track performance and maintenance needs in exposed industrial spaces.
The unit is UL 1449 and UL 1283 listed with CSA listings, and RoHS compliant. These certifications support safety, performance, and regulatory acceptance across North American projects, streamline procurement for regulated environments, and help avoid compliance delays during commissioning. They also align with CSA Electrical Notice No. 516 and other industry standards, facilitating audits and documentation.
With a 15-year warranty (20 years when registered) and a built‑in surge counter, it reduces replacement cycles and simplifies maintenance planning. A robust 300 kA per phase protection minimizes downtime from surges, lowers repair costs for downstream equipment, and supports predictable budgeting across capital projects. That translates to measurable ROI through reduced energy waste and extended asset life.