Eaton SPM400220Y1S SPD - NEMA 4 with internal breaker
Part Number: SPM400220Y1S
Quick Summary
Introducing the Eaton SPM400220Y1S SPD MAX surge protector, designed to shield electrical systems from transients in industrial panels and machinery. Many users face nuisance outages from voltage spikes, and this device delivers high surge capacity and reliable protection to keep critical equipment running. It carries CSA and UL listings—including UL 1449 and UL 1283—and RoHS compliance, aligning with global safety and environmental standards for harsh industrial environments. The enclosure is NEMA 4 rated and includes an internal circuit breaker, supporting safer, simpler field maintenance. For engineers and procurement teams, this surge protection device enhances electrical protection & circuit control while reducing downtime and shielding capital investments.
Product Information
Extended Description
SPM400220Y1S Eaton: Surge Protective Device, Max series, Two modules, 400 kA per phase, 127/220 Wye (4W+G), Basic, NEMA 4 with internal circuit breaker
Product Name
Eaton SPD MAX series surge protection device
Catalog Number
SPM400220Y1S
UPC
786685919812
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
127/220 Wye (4W+G)
Enclosure
NEMA 4 with internal circuit breaker
Type
Max series
Special features
Basic
Feature: 400 kA per phase protection across two modules. Business Impact: High transient withstand capability minimizes insulation stress and load damage, reducing unexpected downtime and extending equipment life. Application: Ideal for main power feeds, machine centers, and critical load clusters in manufacturing environments. The result is improved line reliability and lower maintenance costs. Feature: NEMA 4 enclosure with internal circuit breaker. Business Impact: Weather-resistant protection paired with quick-disconnect capability simplifies commissioning and serviceability. Application: Suitable for outdoor or dirty environments and control cabinets near production floors. Feature: 127/220 V Wye (4W+G) voltage rating. Business Impact: Broad compatibility with common 3-phase systems, enabling safer integration of motors, drives, and office equipment. Application: Used in both new builds and upgrades of electrical protection schemes. Feature: RoHS compliant with CSA/UL certifications. Business Impact: Facilitates compliant procurement and regulatory risk reductions across global supply chains. Application: Fits regulated industries requiring traceable safety certifications. Feature: 15-year warranty (20 years when registered). Business Impact: Reduces total cost of ownership and downtime risk over asset life. Application: Supports long-term asset protection for mission-critical facilities.
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FAQs
The SPM400220Y1S is designed for 127/220 V Wye (4W+G) systems, using two modules to deliver up to 400 kA per phase protection. Install it in electrical protection cabinets or panels per the enclosure guidelines, ensuring proper grounding and adherence to electrical codes. The internal circuit breaker provides safe isolation during maintenance, simplifying service and reducing downtime.
A rating of 400 kA per phase indicates the device can absorb very large surge events without compromising protection. The two-module design divides protection across modules, improving reliability during high-energy transients and enabling scalable protection as your system grows, which helps safeguard motors, drives, and other critical loads from damaging voltage spikes.
Yes. The unit features a NEMA 4 enclosure, offering weather and dust resistance suitable for outdoor installations or dirty industrial environments. This enclosure protects sensitive surge circuitry while enabling safer operation in demanding plant conditions, contributing to longer service intervals and reduced corrosion-related issues.
The SPM400220Y1S carries UL 1449 and UL 1283 listings and CSA certifications, along with RoHS compliance. These certifications validate safety performance and environmental responsibility, which helps ensure procurement alignment with regulatory requirements, reduces supplier risk, and supports quality management in regulated industries such as manufacturing and energy.
The surge protector carries a 15-year warranty, with a 20-year term available when registered on Eaton’s site. This extended coverage lowers ownership costs by reducing replacement frequency, providing longer asset protection, and offering peace of mind for mission-critical installations where uptime is essential.