Eaton SPM400240D3W SPD MAX Surge Protector - NEMA 4X
Part Number: SPM400240D3W
Quick Summary
SPM400240D3W is an Eaton SPD MAX surge protection device for 3-phase electrical panels. This solution protects critical equipment from transient overvoltages and helps prevent unscheduled downtime. It carries UL 1449 and UL 1283 certifications with CSA verification and RoHS compliance, underscoring robust performance and regulatory alignment. The unit features a NEMA 4X enclosure with an internal circuit breaker and a built-in surge counter for proactive maintenance, making it suitable for demanding industrial environments. Designed for 240V delta systems, it supports reliable protection across manufacturing lines, data centers, and other mission-critical facilities while simplifying installation and service logistics.
Product Information
Extended Description
SPM400240D3W Eaton: Surge Protective Device, Max series, Two modules, 400 kA per phase, 240 Delta (3W+G), Standard with surge counter, NEMA 4X with internal circuit breaker
Product Name
Eaton SPD MAX series surge protection device
Catalog Number
SPM400240D3W
UPC
786685920818
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 1283 CSA Std. C22.2 No. 8-M1986 UL 1449 CSA Electrical Notice NO. 516 Edition 1
Voltage rating
240 Delta (3W+G)
Enclosure
NEMA 4X with internal circuit breaker
Type
Max series
Special features
Standard with surge counter
The 400 kA per phase protection capacity translates to immediate fault current handling, reducing the risk of equipment damage and the associated downtime that erodes factory throughput. Business impact: lower maintenance costs and extended asset life, with a clear ROI from avoided outages. In practice, the two-module configuration ensures scalable protection for mid-to-large power panels, enabling seamless upgrades without replacing the entire protection scheme. Application relevance: ideal for 240V delta (3W+G) networks in manufacturing and heavy electrical installations, where reliable surge mitigation preserves motor drives and controls. The NEMA 4X enclosure with an internal circuit breaker provides rugged, weather-resistant protection for outdoor or harsh indoor environments, while the surge counter supports compliance auditing and proactive replacement planning.
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FAQs
The SPM400240D3W is designed for 240 V delta 3W+G configurations and fits standard 3-phase panels. Ensure the enclosure is accessible for maintenance, mount according to the manufacturer's guidelines, and connect per the internal circuit breaker configuration. Utilize the surge counter for traceability and periodic verification as part of your commissioning checklist.
This unit delivers up to 400 kA per phase protection with two modules, providing robust transient mitigation for multi-line systems. It includes a built-in surge counter for monitoring, and meets UL 1449 and UL 1283 standards, ensuring compliant performance in critical applications.
Yes. The 400 kA per phase rating and NEMA 4X enclosure make it suitable for data centers, manufacturing floors, and other critical facilities where minimizing downtime and protecting sensitive drives and controls is essential.
The device is RoHS compliant and carries UL 1283, UL 1449, CSA Std. C22.2 No. 8-M1986, and CSA Electrical Notice No. 516 Edition 1. These certifications confirm electrical safety, performance under transient conditions, and regulatory alignment for industrial environments.
Eaton offers a 15-year warranty from date of delivery, with 20-year coverage when registered on Eaton’s SPD portal. The built-in surge counter supports ongoing monitoring, enabling proactive maintenance and timely replacement to maximize ROI and uptime.