Eaton SPM400220Y1U SPD MAX series - 127/220 Wye
Part Number: SPM400220Y1U
Quick Summary
The Eaton SPD MAX series surge protection device, model SPM400220Y1U, is designed to safeguard critical electrical loads in industrial power systems. It addresses the common challenge of transient overvoltages that cause equipment damage and unscheduled downtime. Built for rugged environments, it features a two-module configuration rated at 400 kA per phase and a 127/220 V Wye (4W+G) connection, housed in a NEMA 4 enclosure with an internal terminal breaker. With RoHS compliance and established UL and CSA certifications, this SPD aligns with safety and reliability standards. By combining a long warranty with straightforward installation, it delivers business value through reduced maintenance costs and improved system uptime.
Product Information
Extended Description
SPM400220Y1U Eaton: Surge Protective Device, Max series, Two modules, 400 kA per phase, 127/220 Wye (4W+G), Basic, NEMA 4 with internal terminal breaker
Product Name
Eaton SPD MAX series surge protection device
Catalog Number
SPM400220Y1U
UPC
786685919836
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 CSA Electrical Notice NO. 516 Edition 1 UL 1283
Voltage rating
127/220 Wye (4W+G)
Enclosure
NEMA 4 with internal terminal breaker
Type
Max series
Special features
Basic
High surge protection with 400 kA per phase minimizes fault energy reaching sensitive equipment, helping extend asset life and reduce unplanned downtime. The two-module design provides scalable protection for mid- to large-load circuits while keeping installation compact and cost-efficient in control cabinets. The rugged NEMA 4 enclosure with an internal terminal breaker simplifies field wiring and protects against dust and water ingress in harsh industrial environments, enabling faster commissioning and safer maintenance. The 127/220 V Wye (4W+G) rating supports common voltage configurations in mixed-load facilities, enabling universal compatibility with minimal rework, while the basic feature set keeps installation straightforward and compliant with essential protection standards. RoHS compliance and certifications such as UL 1449 and CSA C22.2 ensure regulatory alignment, and a 15-year warranty (20 years with registration) lowers lifecycle risk and total cost of ownership. The internal terminal breaker reduces wiring complexity, improving reliability in dense panel layouts and easing future upgrades.
Get a Quick Quote for a Eaton SPM400220Y1U
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton SPM400220Y1U?
Enquire Now
FAQs
Install the two-module SPD MAX unit inside a NEMA 4 enclosure with the internal terminal breaker. Route line, neutral, and ground connections per Eaton mounting instructions, and ensure proper grounding and routing to minimize EMI. Use appropriate panel space to accommodate the 9.3 in depth and 14.91 in width dimensions for clean wiring and service access.
The device provides up to 400 kA per phase protection, ideal for mid- to large-load industrial circuits and critical control panels. It is effective in damp or dusty environments thanks to the NEMA 4 enclosure, reducing outage risks in manufacturing lines and outdoor equipment enclosures.
Yes, it is RoHS compliant. It carries certifications including UL 1449, UL 1283, CSA Std. C22.2 No. 8-M1986, and CSA Electrical Notice NO. 516 Edition 1, which validate safety, performance, and electromagnetic compatibility for industrial applications.
The unit comes with a 15-year warranty from the date of delivery, with an extension to 20 years when registered on Eaton’s SPD website, offering long-term protection planning and lower lifecycle risk.
The internal terminal breaker consolidates surge protection and overcurrent protection in a single point, simplifying wiring and reducing maintenance time. This lowers labor costs during upgrades and minimizes potential wiring faults, contributing to a shorter payback period and improved uptime.