Eaton SPM300400Y4T SPD Max Surge Protection Device - UL 1449
Part Number: SPM300400Y4T
Quick Summary
Eaton SPM300400Y4T SPD Max surge protection device protects 230/400 V industrial power systems from transient surges and voltage spikes. This helps data centers, manufacturing lines, and control panels avoid unplanned downtime and equipment wear. UL 1449-listed protection with a rugged NEMA 4 enclosure supports reliable performance in harsh environments, while the internal terminal block simplifies wiring and serviceability. By aligning with Eaton’s Power Xpert SPD portfolio, this device delivers scalable protection, improved power quality, and a lower total cost of ownership for facilities seeking robust electrical protection and straightforward maintenance.
Product Information
Extended Description
SPM300400Y4T Eaton: Eaton SPD Max series surge protection device, SPD Max Series, 300 kA per phase, 230/400 Wye (4W + G), Power Xpert SPD, NEMA 4 with internal terminal block
Product Name
Eaton SPD MAX series surge protection device
Catalog Number
SPM300400Y4T
UPC
786689410377
Product Length/Depth
9.5 in
Product Height
17.05 in
Product Width
15 in
Product Weight
52 lb
Certifications
UL 1449
Voltage rating
230/400 Wye (4W+G)
Surge current
300kA per phase
Feature → 300 kA per phase surge capacity → Business Impact → Superior protection against transient events, reducing equipment damage and downtime; Application → Ideal for motor drives, breakers, and control panels in heavy industry. Feature → 230/400 V Wye (4W+G) rating → Business Impact → Direct compatibility with common industrial feeders and panelboards; Application → Suitable for commercial and industrial distribution networks. Feature → UL 1449 listed → Business Impact → Meets recognized safety standards, supporting compliance audits and insurance requirements; Application → Critical for electrical installations in regulated environments. Feature → NEMA 4 enclosure with internal terminal block → Business Impact → Weather-resistant and easy to wire, lowering installation time and service costs; Application → Outdoor or harsh-environment cabinets. Feature → Compact footprint and clear cataloging → Business Impact → Simplifies procurement and mechanical fit in existing enclosures; Application → Retrofit projects and new builds. Feature → Power Xpert SPD compatibility → Business Impact → Seamless expansion of protection coverage as system needs grow; Application → Enterprise-wide surge protection strategy.
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FAQs
Power down the system, mount the unit in a suitable enclosure, and connect conductors to the internal terminal block. Ensure wiring follows the 230/400 V Wye (4W+G) layout and complies with UL guidelines. The NEMA 4 enclosure provides protection in challenging environments, and the unit’s 9.5 in depth, 17.05 in height, and 15 in width fit standard commercial panels.
The device provides 300 kA per phase surge current protection, delivering strong transient suppression for critical equipment and reducing the risk of voltage spikes causing damage.
Yes. The SPM300400Y4T is UL 1449 listed and is housed in a NEMA 4 enclosure with an internal terminal block, designed for reliable operation in challenging environments.
It is well-suited for industrial power distribution, motor drives, control panels, and machine cabinets operating at 230/400 V. Its 4W+G configuration and robust enclosure make it ideal for both indoor and outdoor installations in manufacturing, process industries, and facilities management.
The device’s internal terminal block simplifies wiring, reduces installation time, and supports straightforward servicing. UL 1449 certification and a rugged enclosure minimize maintenance costs, while high surge capacity lowers the likelihood of downtime due to transient events, delivering a lower total cost of ownership.