Eaton SPM120480Y3T Surge Protection Device - UL 1449
Part Number: SPM120480Y3T
Quick Summary
SPM120480Y3T surge protection device from Eaton protects critical electrical systems in 277/480 V four-wire configurations. Installations often struggle with nuisance outages and undersized protection, leading to equipment damage and downtime. This SPD MAX series unit carries UL 1449 and CSA certifications, including UL 1283 and CSA standards, underscoring robust compliance for industrial environments. With a NEMA 4 enclosure, a built-in surge counter, and RoHS compliance, it combines reliability with ease of maintenance, delivering measurable business value through reduced downtime, extended equipment life, and simpler service planning for data centers, manufacturing lines, and control panels.
Product Information
Extended Description
SPM120480Y3T Eaton: Surge Protective Device, Max series, Single module, 120 kA per phase, 277/480 Wye (4W+G), Standard with surge counter, NEMA 4 with internal terminal breaker
Product Name
Eaton SPD MAX series surge protection device
Catalog Number
SPM120480Y3T
UPC
786685914862
Product Length/Depth
9.3 in
Product Height
17.5 in
Product Width
14.91 in
Product Weight
50 lb
Warranty
15 years from the date of delivery (20 years when registered on www.eaton.com/spd)
Compliances
RoHS Compliant
Certifications
UL 1449 CSA Std. C22.2 No. 8-M1986 CSA Electrical Notice NO. 516 Edition 1 UL 1283
Voltage rating
277/480 Wye (4W+G)
Enclosure
NEMA 4 with internal terminal breaker
Type
Max series
Special features
Standard with surge counter
High surge capability delivers real protection: With 120 kA per phase, the SPD MAX unit helps prevent transient overvoltages from compromising sensitive loads, reducing unplanned downtime and extending motor and drive life in demanding environments. This translates to lower maintenance costs and greater production uptime for manufacturing facilities and process plants. The 277/480 V Wye configuration (4W+G) supports common facility power architectures, enabling plug-and-play integration into existing electrical distribution without costly reconfiguration. The NEMA 4 enclosure with an internal terminal breaker provides robust outdoor- or dirty-environment protection while simplifying field wiring and serviceability, cutting installation time and risk. A built-in surge counter offers straightforward monitoring for proactive maintenance and compliance reporting, improving asset management. RoHS compliance further reduces environmental impact and supports regulatory alignment, while a 15-year warranty (20 years when registered) enhances total cost of ownership by mitigating long-term risk. Compatibility with Eaton specification sheets and UL/CSA certifications gives engineers confidence during panel builds and retrofits, and the standard single-module design supports compact footprint requirements in space-constrained electrical cabinets.
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FAQs
The SPM120480Y3T is designed specifically for 277/480 V Wye (4W+G) configurations, providing direct compatibility with common industrial power distribution without requiring voltage conversion or adapters. Its single-module design fits standard control panels and switchgear, simplifying installation and reducing footprint impacts on crowded electrical rooms.
The device offers 120 kA per phase surge protection, which limits transient overvoltages to safe levels and clamps energy away from sensitive loads. This rating helps prevent insulation damage, nuisance tripping, and premature component wear in drives, PLCs, relays, and motors commonly found in industrial automation environments.
Yes. The SPM120480Y3T uses a NEMA 4 enclosure with an internal terminal breaker, providing weather resistance and dust protection for indoor and outdoor installations. Its compact, single-module format simplifies mounting in standard electrical cabinets, and the internal breaker streamlines wiring and service access during maintenance.
The SPD is certified to UL 1449 and UL 1283, with CSA Std. C22.2 No. 8-M1986 and CSA Electrical Notice NO. 516 Edition 1 compliance. These certifications validate safety, performance, and electromagnetic compatibility, ensuring reliability in regulated industrial environments and facilitating code-compliant panel builds and retrofits.
Eaton provides a 15-year warranty from the date of delivery, extended to 20 years when registered on Eaton's SPD site. For ROI, rely on the built-in surge counter for monitoring, RoHS-compliant materials for reduced disposal costs, and robust UL/CSA certification to minimize downtime and maintenance surprises in critical infrastructure like data centers and manufacturing lines.