Eaton SPM250480D4T SPD MAX Series Surge Protector - UL 1449
Part Number: SPM250480D4T
Quick Summary
The SPM250480D4T SPD MAX surge protection device guards critical 480V delta systems against damaging transients. Unprotected surges can trigger unplanned downtime, motor wear, and costly panel replacements, eroding uptime and increasing maintenance costs. UL 1449 certification and a NEMA 4 enclosure with an internal terminal block help ensure safe, compliant operation in harsh environments, while Power Xpert SPD compatibility enables scalable protection across sites. By pairing robust protection with straightforward installation, this unit delivers measurable business value—reducing downtime, extending equipment life, and simplifying compliance for industrial facilities.
Product Information
Extended Description
SPM250480D4T Eaton: Eaton SPD Max series surge protection device, SPD Max Series, 250 kA per phase, 480 Delta (3W + G), Power Xpert SPD, NEMA 4 with internal terminal block
Product Name
Eaton SPD MAX series surge protection device
Catalog Number
SPM250480D4T
UPC
786689408305
Product Length/Depth
9.5 in
Product Height
17.05 in
Product Width
15 in
Product Weight
52 lb
Certifications
UL 1449
Voltage rating
480 Delta (3W+G)
Surge current
250kA per phase
Surge protection rating of 250kA per phase delivers robust defense against transient overvoltages that can damage drives and motors. This reduces unplanned downtime and maintenance costs for high-value equipment in manufacturing lines. Voltage rating of 480 Delta (3W+G) ensures compatibility with common industrial delta networks, simplifying design and procurement. This enables streamlined installation across multiple machines and reduces wiring errors in new builds or retrofits. NEMA 4 enclosure with an internal terminal block provides rugged protection for indoor and outdoor environments and simplifies wiring. The result is faster installation, fewer field wiring errors, and long-term reliability in washdown areas and outdoor substations. Product dimensions and weight — 9.5 in L, 15 in W, 17.05 in H, 52 lb — support mounting in standard electrical rooms, MCCs, and enclosures without oversized footprint. This translates to better space utilization and easier logistics for retrofit projects. UL 1449 listing and compatibility with Eaton Power Xpert SPD family ensure regulatory compliance and scalable, centralized protection for campuses or multi-site operations. This helps procurement achieve standardization and lowers life-cycle costs through unified protection strategies. In practice, customers report smoother commissioning and lower total cost of ownership when protection is matched to load profiles and supply voltage. The combination of high surge capacity, rugged enclosure, and straightforward wiring addresses common objections about reliability and maintenance.
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FAQs
The SPM250480D4T is designed for 480V delta (3W+G) systems, with an internal terminal block that simplifies wiring. It is compatible with Eaton Power Xpert SPD architectures and is suitable for panelboards, MCCs, and other industrial enclosures where reliable transient protection is required.
This unit provides 250kA per phase surge protection, delivering strong defense against high-energy transients that can damage motors, drives, and control electronics.
Yes. It features a NEMA 4 enclosure, which, together with an internal terminal block, offers rugged protection suitable for indoor and outdoor washdown environments and challenging industrial installations.
The protection device measures 9.5 inches in length, 15 inches in width, and 17.05 inches in height, with an approximate weight of 52 lb, enabling straightforward mounting in standard electrical rooms and racks.
By mitigating transient events, the SPM250480D4T reduces downtime, protects expensive motors and drives, simplifies regulatory compliance with UL 1449, and supports standardized protection across sites, resulting in lower total cost of ownership over the equipment lifecycle.