Eaton SPM120220Y4T Surge Protection Device - UL 1449
Part Number: SPM120220Y4T
Quick Summary
SPM120220Y4T is a surge protection device that safeguards electrical systems in industrial automation and data-center applications. Power disturbances cause downtime, equipment damage, and costly repairs—reliable surge protection helps prevent unplanned outages. UL 1449 listed and a NEMA 4 enclosure provide rugged, compliant performance for challenging environments. In practice, this SPD integrates with Eaton’s Power Xpert family to improve power quality while lowering maintenance costs and extending asset life. The device's 127/220 V Wye configuration accommodates common industrial loads, making installation straightforward across multiple sites. By combining robust protection with a compact footprint and reliable wiring, engineers can standardize surge mitigation across disparate equipment.
Product Information
Extended Description
SPM120220Y4T Eaton: Eaton SPD Max series surge protection device, SPD Max Series, 120 kA per phase, 127/220 Wye (4W + G), Power Xpert SPD, NEMA 4 with internal terminal block
Product Name
Eaton SPD MAX series surge protection device
Catalog Number
SPM120220Y4T
UPC
786689409395
Product Length/Depth
9.5 in
Product Height
17.05 in
Product Width
15 in
Product Weight
52 lb
Certifications
UL 1449
Voltage rating
127/220 Wye (4W+G)
Surge current
120kA per phase
High surge current capability delivers up to 120 kA per phase, safeguarding critical drives, PLCs, and switchgear during transient events; this directly reduces downtime and replacement costs while maintaining process continuity. The 127/220 V Wye (4W + G) rating matches typical industrial power distribution, enabling seamless integration with existing feeders and minimizing wiring complexity for new installs. With a NEMA 4 enclosure and an internal terminal block, installation is simplified and weather-resistant, allowing both indoor and outdoor applications without additional housings or field modifications. UL 1449 listing provides regulatory confidence and safety assurance, helping to meet strict industry standards and facilitate audits. Compatibility with Eaton’s Power Xpert SPD ecosystem supports centralized monitoring, rapid fault isolation, and easier maintenance planning. Compact dimensions and a manageable 52 lb weight support scalable deployments across multi-site facilities while preserving valuable floor space. The 9.5 in depth, 17.05 in height, and 15 in width measurements help engineers design coordinated protection schemes that align with panel layouts and mounting options. This combination of features translates to measurable ROI through extended equipment life, improved energy efficiency, and reduced capital expenditure for power protection.
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FAQs
Yes. The SPM120220Y4T is rated 127/220 V Wye (4W+G) and includes an internal terminal block to simplify wiring. It supports standard 4-wire plus ground configurations commonly found in industrial facilities, ensuring straightforward integration with existing feeders and switchgear without requiring extensive re- wire.
The device provides up to 120 kA per phase surge current, designed to clamp transient voltages and divert surges away from sensitive equipment such as PLCs, drives, and power supplies. This rating aligns with typical industrial protection requirements, reducing the likelihood of nuisance trips and long-term degradation of components.
Yes. With UL 1449 listing and a NEMA 4 enclosure, the SPM120220Y4T is appropriate for both data centers and manufacturing environments. The 127/220 V Wye configuration supports common facility loads, and Power Xpert SPD compatibility enables centralized monitoring and faster fault diagnosis across multi-site deployments.
The SPD is UL 1449 listed and features a rugged NEMA 4 enclosure, suitable for indoor and outdoor installations. These certifications validate safety and performance under transient conditions and support compliance with industry standards for electrical protection devices.
By preventing transient damage, the SPM120220Y4T reduces unplanned downtime and extends equipment life, delivering a favorable return on investment. Its compatibility with Power Xpert SPD allows centralized health monitoring, streamlined maintenance planning, and quicker fault isolation—lowering total cost of ownership over the asset lifecycle.