Eaton SPM300240H4R Surge Protection Device - UL 1449
Part Number: SPM300240H4R
Quick Summary
The Eaton SPD MAX SPM300240H4R surge protection device provides robust transient suppression for 3‑phase electrical systems in data centers, manufacturing lines, and utility installations. Engineers often confront unplanned voltage spikes that trigger downtime, shorten equipment life, and raise maintenance costs; this unit offers reliable frontline defense against those risks. Key certifications and ratings include UL 1449 listing and a NEMA 4 enclosure with an internal circuit breaker, supporting both indoor and harsh indoor environments. By pairing high surge capability with easy integration in Eaton’s Power Xpert SPD ecosystem, it delivers tangible business value through improved reliability, reduced repair costs, and simpler compliance across industrial facilities.
Product Information
Extended Description
SPM300240H4R Eaton: Eaton SPD Max series surge protection device, SPD Max Series, 300 kA per phase, 240 Delta High Leg (4W + G) on 'B' Phase, Power Xpert SPD, NEMA 4 with internal circuit breaker
Product Name
Eaton SPD MAX series surge protection device
Catalog Number
SPM300240H4R
UPC
786689410315
Product Length/Depth
9.5 in
Product Height
17.05 in
Product Width
15 in
Product Weight
52 lb
Certifications
UL 1449
Voltage rating
240V high-leg delta (4W+G) on B phase
Surge current
300kA per phase
Feature → Business Impact → Application: The SPD MAX device delivers a surge current rating of 300 kA per phase, providing industry-leading transient protection that minimizes insulation damage and protects critical loads. The result is reduced downtime, longer equipment life, and lower replacement costs for drives, controllers, and motor systems across data centers, manufacturing floors, and utility installations. This directly supports reliability-centered maintenance programs and helps meet strict uptime targets in demanding environments. Feature → Business Impact → Application: 240V high-leg delta operation on the B phase enables compatibility with common 4W+G delta power distributions, simplifying integration into existing infrastructure without costly rewiring. This reduces installation time and risk while ensuring robust protection for sensitive equipment in industrial plants. Feature → Business Impact → Application: NEMA 4 enclosure with internal circuit breaker delivers rugged protection in outdoor or harsh indoor spaces, enabling flexible siting and safer maintenance. It also simplifies compliance with environmental protection standards while reducing field wiring complexity for panel builders. Feature → Business Impact → Application: UL 1449 listing confirms regulatory compliance and product safety, reducing procurement risk and streamlining approval processes for contractors and engineers working on critical systems. Feature → Business Impact → Application: Dimensions and weight (9.5 in D, 17.05 in H, 15 in W; 52 lb) support straightforward mounting in standard electrical spaces and cabinets, accelerating installation on existing racks and reducing labor time. Feature → Business Impact → Application: Power Xpert SPD compatibility ensures seamless integration with Eaton’s protection portfolio, enabling centralized monitoring, easier maintenance, and scalable protection strategies for large sites with multiple protection devices.
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FAQs
Yes. The SPM300240H4R is designed for 240V high-leg delta (4W+G) on the B phase, simplifying integration into common delta power distributions. It supports easy mounting in standard panels and provides reliable surge protection for sensitive drives and controllers without rewiring existing feeders.
A 300 kA per phase rating indicates the device can absorb extremely large transient currents per phase without failing, reducing the risk of insulation damage and equipment downtime. This rating is ideal for facilities with high transient activity such as motors, drives, and data-center power rails.
Yes. The unit is UL 1449 listed, providing recognized safety and performance compliance for surge protection devices used in industrial installations. This helps streamline procurement approvals and supports regulatory alignment across project specifications.
Yes. The SPM300240H4R comes in a NEMA 4 enclosure with an internal circuit breaker, offering protection against dust, moisture, and indirect water exposure. This makes it suitable for outdoor panels and harsh indoor environments while maintaining service continuity.
The device is compatible with Eaton’s Power Xpert SPD ecosystem, enabling centralized monitoring and streamlined maintenance alongside other SPD assets. Installation is straightforward in standard cabinets, with mounting dimensions of 9.5 in depth, 17.05 in height, and 15 in width, helping to minimize on-site labor and debris during upgrades.