Eaton SPM320480D3S Surge Protection Device - UL 1449 Listed
Part Number: SPM320480D3S
Quick Summary
The Eaton SPM320480D3S surge protection device safeguards 480 V delta systems from damaging transients. This robust solution helps prevent drive outages, motor starter faults, and sensor misreads that trigger costly downtime in manufacturing lines and critical facilities. With UL 1449 and UL 1283 listings, CSA certification, and RoHS compliance, it meets stringent safety and regulatory requirements while remaining cost-effective for large installations. The NEMA 4 enclosure with an internal circuit breaker supports outdoor and harsh-environment mounting, and the two-module Max series design enables scalable protection as your facility grows. Built-in surge counter and clear diagnostic indicators provide actionable insights to optimize maintenance and uptime, reducing total cost of ownership.
Product Information
Extended Description
SPM320480D3S Eaton: Surge Protective Device, Max series, Two modules, 320 kA per phase, 480 Delta (3W+G), Standard with surge counter, NEMA 4 with internal circuit breaker
Product Name
Eaton SPD MAX series surge protection device
Catalog Number
SPM320480D3S
UPC
786685919607
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 UL 1283 CSA Std. C22.2 No. 8-M1986 CSA Electrical Notice NO. 516 Edition 1
Voltage rating
480 Delta (3W+G)
Enclosure
NEMA 4 with internal circuit breaker
Type
Max series
Special features
Standard with surge counter
Feature: 320 kA per phase surge capability across two modules provides robust protection for critical loads in 480 V delta systems. Business impact: minimizes unplanned downtime and equipment wear, lowering maintenance costs and extending motor drive life. Application: ideal for manufacturing lines and process equipment where transient events threaten uptime. Feature: NEMA 4 enclosure with an internal circuit breaker allows outdoor and harsh-environment installation without additional enclosures. Business impact: reduces installation time and protects against exposure to dust, moisture, and temperature swings. Application: outdoor panels, remote substations, and exposed process areas. Feature: Standard with surge counter enables ongoing health monitoring of the protection scheme. Business impact: enables proactive maintenance scheduling and reduces risk of unseen degradation. Application: panelboards and control cabinets in regulated environments. Feature: RoHS compliant with listed certifications (UL 1449, UL 1283, CSA) delivers regulatory peace of mind. Business impact: simplifies compliance audits and supplier qualification. Application: facilities adhering to strict electrical safety and environmental standards. Feature: Max series two-module design supports scalable expansion as plant protection needs grow. Business impact: defers capital expenditure and streamlines future upgrades. Application: expanding facilities, campuses, and multi-line production cells. Feature: 480 Delta (3W+G) rated protection ensures proper coordination with 3-phase systems. Business impact: reduces risk of misapplication and ensures effective transient suppression. Application: new installations and retrofits in industrial power distribution.
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FAQs
The SPM320480D3S is designed for use in panels with a 480 Delta (3W+G) configuration. It features a NEMA 4 enclosure and an internal circuit breaker, enabling outdoor or harsh-environment mounting. Plan for proper clearance, secure mounting, and correct wiring to the two-module Max series unit, following the Eaton installation guide and local electrical codes for safe, compliant operation.
The device delivers up to 320 kA per phase protection with a two-module configuration. This high surge capability shunts transient energy away from critical loads such as drives, motors, and sensors, preventing insulation damage, controller faults, and unexpected shutdowns. The result is longer equipment life and reduced replacement costs in high-energy electrical environments.
Yes. The unit comes in a NEMA 4 enclosure with an internal circuit breaker, specifically designed for outdoor and harsh-environment mounting. This enclosure protection combined with UL/CSA certifications ensures reliable performance in exposed facilities, warehouses, and outdoor substations while meeting essential safety requirements.
The SPM320480D3S is UL 1449 and UL 1283 listed, CSA certified, and RoHS compliant. These certifications verify safety performance, electrical noise handling, and environmental responsibility, simplifying code compliance, procurement approvals, and audits for industrial installations across sectors such as manufacturing, energy, and data centers.
The product carries a 15-year warranty from date of delivery, extending to 20 years if registered on Eaton’s SPD site. The surge counter is included as a standard feature for proactive maintenance, enabling you to track protection health over time and plan service intervals to optimize uptime and total cost of ownership.