Eaton SPM120480D1T Surge Protection Device - 120 kA
Part Number: SPM120480D1T
Quick Summary
Eaton SPM120480D1T surge protection device protects industrial power systems from transients on 480V delta networks. Unprotected equipment faces downtime, drive failures, and costly repair bills when surge events occur. This model carries key certifications critical for compliant installations, including UL 1449 and UL 1283 approvals, CSA Electrical Notice NO. 516, and RoHS compliance, supporting safe, code-compliant operation. The rugged NEMA 4 enclosure with an internal terminal breaker simplifies wiring and field mounting, while the 120 kA per phase rating delivers robust protection for high-energy surges common in manufacturing and heavy industries. For reliability, Eaton offers a 15-year warranty (20 years when registered), making this a dependable component in a broader surge protection solutions strategy and industrial electrical protection program.
Product Information
Extended Description
SPM120480D1T Eaton: Surge Protective Device, Max series, Single module, 120 kA per phase, 480 Delta (3W+G), Basic, NEMA 4 with internal terminal breaker
Product Name
Eaton SPD MAX series surge protection device
Catalog Number
SPM120480D1T
UPC
786685914428
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 UL 1449 UL 1283 CSA Electrical Notice NO. 516 Edition 1
Voltage rating
480 Delta (3W+G)
Enclosure
NEMA 4 with internal terminal breaker
Type
Max series
Special features
Basic
Feature: High-energy 120 kA per phase surge protection. Business impact: Shields sensitive loads such as drives, PLCs, and controls from damaging transients, reducing unplanned downtime and maintenance costs. Application: Ideal for manufacturing lines and heavy equipment in 3W+G delta systems. Feature: 480 Delta (3W+G) single-module design. Business impact: Simplifies integration with existing power architectures, minimizes footprint, and speeds up field deployment. Application: Works well in control panels and electrical rooms with space constraints.Feature: NEMA 4 enclosure with internal terminal breaker. Business impact: Delivers weather and dust resistance plus safer, cleaner wiring, lowering service calls and retrofit risk. Application: Suitable for indoor/outdoor industrial environments where reliability matters.Feature: RoHS compliant with UL and CSA certifications. Business impact: Ensures regulatory compliance, reduces procurement risk, and supports safe product retirement and recycling. Application: Fits regulated facilities and projects requiring formal certifications.Feature: Long warranty coverage and documented support. Business impact: Lowers total cost of ownership and provides predictable maintenance planning. Application: Preferred choice for OEMs, installers, and enterprises seeking long-term protection.
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FAQs
Install the unit as a single-module module within a NEMA 4 enclosure. Use the internal terminal breaker for clean wiring and connect to the 480 Delta (3W+G) network. Ensure adequate clearance for heat dissipation and follow Eaton's installation guidelines and the catalog specifications (model SPM120480D1T) for correct torque settings and wiring practices.
The device offers up to 120 kA per phase surge protection, designed to clamp transient spikes before they reach drives, PLCs, and motors. This rating helps preserve sensitive electronics, reduces the risk of nuisance trips, and minimizes downtime in manufacturing lines and automation equipment operating on 480V delta systems.
Yes. The 480V delta compatibility, high 120 kA per phase protection, and robust RoHS-compliant design make it suitable for critical loads in manufacturing environments as well as data centers with three-phase power. The NEMA 4 enclosure supports reliable indoor/outdoor protection, while the internal breaker simplifies integration into existing protection schemes.
This model carries UL 1449 and UL 1283 certifications and CSA Electrical Notice NO. 516, along with RoHS compliance. These certifications confirm electrical safety, performance standards, and material compliance, helping you meet code requirements and qualify procurement for regulated projects.
Eaton provides a 15-year warranty from delivery, with 20-year coverage if registered on the Eaton SPD site. In addition to the warranty, you gain access to Eaton’s datasheets and technical support, and the product’s certified design supports predictable maintenance planning and lower total cost of ownership.