Eaton SPM300240H4T SPD MAX surge protection device - UL 1449
Part Number: SPM300240H4T
Quick Summary
The Eaton SPM300240H4T SPD MAX surge protection device protects critical loads in 240V high-leg delta systems from damaging voltage transients. This compact, high-energy SPD is designed for industrial electrical protection across manufacturing lines, data centers, and motor-driven equipment. When surge events occur, it clamps fast, reducing downtime and extending uptime for mission-critical machinery. The unit is UL 1449 listed and shipped in a rugged NEMA 4 enclosure, with an internal terminal block for simple field installation. By combining robust surge handling with straightforward commissioning, it minimizes nuisance trips and maintenance while supporting Power Xpert SPD compatibility. For buyers, this translates to lower total cost of ownership and improved power quality.
Product Information
Extended Description
SPM300240H4T 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 terminal block
Product Name
Eaton SPD MAX series surge protection device
Catalog Number
SPM300240H4T
UPC
786689410322
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 1: 300 kA per phase surge rating provides robust energy handling, which translates to a significant reduction in downstream equipment damage and costly downtime. Application: ideal for motor drives and automated lines in manufacturing environments, increasing line availability and extending equipment life. Feature → Business Impact → Application. Feature 2: 240V high-leg delta (4W+G) on B phase optimizes protection for delta-fed panels, ensuring correct connection and reliable performance across distribution schemes. Application: installation in 4-wire delta systems reduces miswiring risk and protects critical loads in industrial plants. Feature 3: NEMA 4 enclosure with an internal terminal block offers rugged, weather-resistant protection and straightforward wiring. Application: suitable for harsh plant floors and outdoor enclosures while simplifying field installation and service. Feature 4: UL 1449 certification provides regulatory confidence and trusted surge protection performance. Application: supports compliance programs in regulated facilities and reduces liability exposure. Feature 5: Power Xpert SPD compatibility enables centralized monitoring and coordinated protection across a facility’s electrical network. Application: streamlines maintenance, improves fault diagnosis, and enhances overall power management. Feature 6: Compact footprint with defined dimensions (9.5 in deep, 17.05 in high, 15 in wide) and 52 lb weight aids in layout planning and panel integration. Application: simplifies cabinet design and retrofit projects while maintaining robust protection for critical loads.
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FAQs
Yes. The SPM300240H4T is designed for 240V high-leg delta (4W+G) configurations and includes an internal terminal block for straightforward wiring. Its NEMA 4 enclosure supports panel or mounted installation in industrial environments, with mounting and clearance considerations aligning with typical SPD guidelines to ensure reliable service and ease of maintenance.
The device provides a 300 kA per phase surge rating, delivering rapid clamping to limit voltage transients that can damage downstream equipment. By absorbing high-energy events, it reduces spike energy reaching drives, controllers, and motors, improving reliability and extending equipment life in automation and manufacturing setups.
Industries with heavy electrical loads and sensitive automation benefit the most, including manufacturing lines, material handling, motor drives, conveyors, CNC equipment, and data-center-adjacent control panels. The 240V high-leg delta protection and rugged enclosure make it ideal for harsh plant environments seeking high reliability and uptime.
This SPD is UL 1449 certified, indicating established surge protection performance. It comes in a NEMA 4 enclosure, providing weather resistance and suitability for indoor and certain outdoor plant areas. These standards support regulatory compliance and safe operation in demanding industrial facilities.
The SPD MAX device reduces unplanned downtime by protecting critical loads from transient surges, potentially lowering repair costs and extending asset life. Its robust build and compatibility with centralized monitoring (Power Xpert SPD) simplify maintenance, improve fault diagnostics, and contribute to a lower total cost of ownership over the equipment lifecycle.