Eaton SPM400208Y4T SPD MAX Surge Protector - UL 1449
Part Number: SPM400208Y4T
Quick Summary
Eaton SPM400208Y4T SPD MAX surge protection device protects critical electrical systems from transient surges in 120/208 V wye networks. A common challenge is unplanned outages and equipment damage caused by transient events that sneak past conventional protection. UL 1449 listing with a rugged NEMA 4 enclosure supports reliable indoor and outdoor use, while a 400 kA per phase rating provides scalable protection for evolving load profiles. For engineering teams, this SPD translates to higher uptime, lower maintenance costs, and seamless integration with Power Xpert SPD monitoring and protection schemes, making it a trusted choice for data centers, manufacturing floors, and utility rooms.
Product Information
Extended Description
SPM400208Y4T Eaton: Eaton SPD Max series surge protection device, SPD Max Series, 400 kA per phase, 120/208 Wye (4W + G), Power Xpert SPD, NEMA 4 with internal terminal block
Product Name
Eaton SPD MAX series surge protection device
Catalog Number
SPM400208Y4T
UPC
786689410469
Product Length/Depth
9.5 in
Product Height
17.05 in
Product Width
15 in
Product Weight
52 lb
Certifications
UL 1449
Voltage rating
120/208 wye (4W+G)
Surge current
400kA per phase
Feature → Business Impact → Application: The SPD MAX series delivers up to 400 kA per phase surge capacity, enabling robust transient protection for sensitive loads and critical equipment; this reduces the risk of costly downtime and warranty-triggering events in data centers or automation lines. Application: ideal for high-availability panels in manufacturing environments where spike events are frequent. Feature → Business Impact → Application: 120/208 V wye (4W + G) configuration ensures compatibility with common commercial and industrial power distributions; this simplifies installation and reduces wiring errors, accelerating project timelines. Application: new installations and retrofits in commercial offices or industrial plants. Feature → Business Impact → Application: UL 1449 listing and NEMA 4 enclosure provide regulatory compliance and rugged enclosure protection; this supports both indoor and outdoor installations with confidence in environmental resilience. Application: electrical rooms and outdoor cabinet deployments. Feature → Business Impact → Application: internal terminal block design speeds wiring, minimizes field connections, and lowers labor costs during commissioning. Application: maintenance turnaround and upgrades in control panels. Feature → Business Impact → Application: compact dimensions (9.5 in depth, 17.05 in height, 15 in width) and a 52 lb footprint aid mounting in tall or narrow enclosures; this improves space planning in cabinets and power distribution units. Application: space-constrained switchgear and panel boards. Feature → Business Impact → Application: Power Xpert SPD compatibility enables standardized monitoring and diagnostics, improving asset management and incident response; Application: critical infrastructure and data center protection schemes.
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FAQs
The SPM400208Y4T uses a 4W+G 120/208V wye configuration and includes an internal terminal block for straightforward wiring. Install in a suitable enclosure with adequate clearance, connect line, neutral, and ground per the wiring diagram, then integrate with Power Xpert SPD monitoring for real-time fault and event reporting.
This device delivers up to 400 kA per phase surge capacity, UL 1449 listed protection, and a rugged NEMA 4 enclosure. It is designed to clamp transient surges effectively, protecting connected equipment and reducing the likelihood of insulation damage and downtime in demanding environments.
Yes. With 120/208V wye compatibility and high surge rating, the SPM400208Y4T is well-suited for data centers, manufacturing lines, and critical automation panels where uptime is paramount and transient events are a common risk.
The unit is UL 1449 listed for surge protection and features a NEMA 4 enclosure rating, supporting both indoor and outdoor installations and helping satisfy common regulatory and environmental requirements for industrial facilities.
By mitigating transient events up to 400 kA per phase, the SPM400208Y4T reduces equipment wear, lowers unexpected downtime, and simplifies preventive maintenance. Its robust enclosure and straightforward wiring also shorten commissioning time and improve long-term asset protection.