Eaton SPM120480Y1T Surge Protection Device - NEMA 4 Enclosure
Part Number: SPM120480Y1T
Quick Summary
SPM120480Y1T is a surge protection device designed to protect critical electrical equipment in industrial power systems. It addresses the costly downtime and equipment damage that surges can cause in large panels and multi-load environments. This unit carries UL 1449 and UL 1283 certifications, CSA recognition, and RoHS compliance to support safe, regulatory-compliant operation. With a rugged NEMA 4 enclosure and an internal terminal breaker, it integrates smoothly into existing installations and the SPD MAX family. For engineering teams, this translates to reliable protection, simplified maintenance, and a clear path to compliant, long-term power quality improvements.
Product Information
Extended Description
SPM120480Y1T Eaton: Surge Protective Device, Max series, Single module, 120 kA per phase, 277/480 Wye (4W+G), Basic, NEMA 4 with internal terminal breaker
Product Name
Eaton SPD MAX series surge protection device
Catalog Number
SPM120480Y1T
UPC
786685914466
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
CSA Std. C22.2 No. 8-M1986 CSA Electrical Notice NO. 516 Edition 1 UL 1449 UL 1283
Voltage rating
277/480 Wye (4W+G)
Enclosure
NEMA 4 with internal terminal breaker
Type
Max series
Special features
Basic
Feature → Business Impact → Application: The SPM120480Y1T uses a 277/480 VAC Wye (4W+G) rating to align with common industrial power distribution, enabling centralized protection across multiple circuits and reducing the risk of equipment damage from transient events. This directly lowers downtime and maintenance costs in manufacturing lines, data centers, and commercial facilities. Feature → Business Impact → Application: A single-module design with 120 kA per phase protection delivers robust surge handling for high-energy disturbances typical in industrial networks, improving uptime and safeguarding sensitive drives and controllers. This reduces replacement costs and extends equipment life in critical production lines. Feature → Business Impact → Application: NEMA 4 enclosure with an internal terminal breaker simplifies installation, wiring, and field servicing, making retrofits and new builds faster and safer in harsh or outdoor environments. This supports faster project timelines and lower field labor costs. Feature → Business Impact → Application: RoHS compliance and comprehensive certifications (UL, CSA) ensure regulatory alignment and lifecycle compatibility, easing procurement and end-of-life management for large facilities. Feature → Business Impact → Application: The 15-year warranty, extendable to 20 years with registration, lowers total cost of ownership and provides long-term risk mitigation for capital-intensive plants and data centers.
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FAQs
Install the SPM120480Y1T as a single-module protection point within a compliant panel rack. It uses a NEMA 4 enclosure with an internal terminal breaker for straightforward wiring. Ensure availability of appropriate hot, neutral, and ground connections for 277/480 VAC Wye systems and follow standard Eaton guidelines for SPD wiring and clearances.
The unit is rated for 277/480 VAC Wye (4W+G) with a surge protection capacity of up to 120 kA per phase. It is RoHS compliant and designed as a basic SPD MAX series device, featuring a NEMA 4 enclosure and internal terminal breaker for ease of integration and protection of downstream equipment.
Yes. The SPM120480Y1T carries UL 1449 and UL 1283 certifications, complies with CSA standards (including CSA C22.2 notices), and RoHS compliance. These certifications help ensure regulatory alignment for industrial installations and support safe operation in harsh environments.
This surge protector is ideal for industrial power distribution panels, commercial electrical rooms, and feeder circuits in manufacturing, data centers, and large facilities. Its 277/480 VAC rating fits three-phase systems common in industrial settings, while the NEMA 4 enclosure supports indoor and outdoor installations with rugged reliability.
The device carries a 15-year warranty from the date of delivery. If you register on Eaton’s SPD site, the warranty extends to 20 years. This extended coverage helps reduce long-term ownership costs and provides added protection for mission-critical applications.