Eaton SPM250400Y4T SPD - UL 1449, 250 kA/phase, 230/400V
Part Number: SPM250400Y4T
Quick Summary
The Eaton SPM250400Y4T SPD protects electrical systems from transient surges in industrial panels. Surges from lightning and switching can cripple equipment and halt production, driving costly downtime. This UL 1449 listed device ships in a rugged NEMA 4 enclosure and is rated for 230/400 V Wye networks, with an internal terminal block for streamlined installation. Designed to integrate with Eaton's Power Xpert SPD ecosystem, it supports reliable, scalable protection for future upgrades while keeping procurement simple and predictable for maintenance teams.
Product Information
Extended Description
SPM250400Y4T Eaton: Eaton SPD Max series surge protection device, SPD Max Series, 250 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
SPM250400Y4T
UPC
786689408282
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
250kA per phase
The SPM250400Y4T delivers 250 kA per phase surge protection, providing strong transient suppression that minimizes the risk of damages to downstream drives, relays, and controllers. Business impact: reduced unplanned downtime and lower repair costs, with faster recovery after events in manufacturing lines and critical infrastructure. Application: ideal for panel boards and machine rooms where 230/400V Wye connections are standard and where high-energy surges are a concern. The NEMA 4 enclosure with internal terminal block simplifies mounting and wire routing, improving installation efficiency and field serviceability. Business impact: easier maintenance, fewer field wiring errors, and safer, cleaner terminations. Application: outdoor or harsh indoor environments in industrial facilities, data centers, and process plants. The Power Xpert SPD compatibility enables centralized monitoring and diagnostics, reducing total cost of ownership through proactive protection strategies. Application: integrated protection across Eaton equipment and third-party panels with compatible accessories. Certification and safety standards are addressed by UL 1449 listing, ensuring compliance for industrial and commercial electrical installations.
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FAQs
Installation begins with mounting the unit in a suitable enclosure that provides access to the internal terminal block. Connect the 230/400V Wye lines to the corresponding line terminals and ensure proper ground bonding. Use the included hardware and torque specs, verify UL 1449 compliance, and terminate all conductors securely to prevent wiring faults that could compromise surge protection performance.
The SPM250400Y4T delivers 250 kA per phase surge current, offering robust protection against high-energy transients. This rating helps safeguard downstream equipment such as drives, relays, and controllers from damaging surge events, reducing maintenance costs, downtime, and the risk of catastrophic failure in demanding industrial environments.
Yes. The SPM250400Y4T is designed for seamless integration within the Eaton Power Xpert SPD ecosystem, enabling centralized monitoring and diagnostics. It also fits standard 230/400V panel configurations and can simplify procurement and service when used alongside other Eaton protection devices and control hardware.
The device uses a NEMA 4 enclosure, which provides a durable rating suitable for indoor and certain outdoor applications with moisture and dust exposure. With an internal terminal block, wiring is protected and accessible for service, making it appropriate for harsh industrial environments typical in manufacturing and process facilities.
Installing the SPM250400Y4T reduces downtime and repair costs by protecting critical equipment from transient surges, extending component life, and lowering maintenance overhead. Although initial costs are modest relative to downstream equipment protection, the long-term ROI comes from fewer outages, easier maintenance, and improved energy reliability in high-risk electrical networks.