Eaton SPM300400Y4R SPD MAX Surge Protector - UL 1449
Part Number: SPM300400Y4R
Quick Summary
Eaton SPD MAX surge protection device shields critical 230/400 V power systems from surges. In manufacturing facilities, uptime is king, and transient spikes can cripple controls and wiring. UL 1449 certified and housed in a NEMA 4 enclosure with an internal circuit breaker for rugged service. It integrates with Power Xpert SPD ecosystems, offering scalable protection; its 300 kA per phase rating supports demanding loads. Designed for a 230/400 V Wye configuration with four conductors and a ground, it fits standard industrial panels and switchboards. Weighing about 52 lb, it stays stable in rugged environments and enables quick service thanks to an integrated circuit breaker.
Product Information
Extended Description
SPM300400Y4R Eaton: Eaton SPD Max series surge protection device, SPD Max Series, 300 kA per phase, 230/400 Wye (4W + G), Power Xpert SPD, NEMA 4 with internal circuit breaker
Product Name
Eaton SPD MAX series surge protection device
Catalog Number
SPM300400Y4R
UPC
786689410353
Product Length/Depth
9.5 in
Product Height
17.05 in
Product Width
15 in
Product Weight
52 lb
Certifications
UL 1449
Voltage rating
230/400 Wye (4W+G)
Surge current
300kA per phase
The SPM300400Y4R delivers high surge capacity with a 300 kA per phase rating, directly reducing the risk of damaging transient events and minimizing costly downtime. This translates to longer equipment life and less frequent panel maintenance, especially in facilities with heavy motor loads or frequent switching. The 230/400 V Wye (4W+G) configuration simplifies integration with existing distribution panels, reducing wiring complexity during retrofits and new installations alike. A rugged NEMA 4 enclosure protects internally wired components from dust, water, and contamination, while the built-in circuit breaker enables rapid service without external accessories. UL 1449 certification provides a clear safety benchmark, helping facilities meet compliance requirements without isolating protection from system upgrades. Compatibility with Eaton's Power Xpert SPD ecosystem supports scalable protection across multiple panels, enabling a unified, cost-effective protection strategy for growing facilities. With dimensions of 9.5 in depth, 15 in width, and 17.05 in height, and a weight of 52 lb, this unit offers a stable, installer-friendly footprint for demanding industrial environments.
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FAQs
To install, mount the unit within the distribution panel and wire L1, L2, L3 for three-phase power, plus the neutral/ground according to the 4W+G configuration. Adhere to local codes and Eaton’s installation guidelines, then utilize the internal circuit breaker to verify service. Perform a post-install check to confirm surge suppression performance and proper integration with the panel.
A 300 kA per phase rating indicates the device can safely absorb extremely large transient energies per phase without compromising protection. This level of surge handling protects sensitive drives, PLCs, and control circuits during severe faults or lightning-induced surges, reducing the risk of equipment damage and unplanned downtime in demanding industrial environments.
Yes. The unit features a NEMA 4-rated enclosure designed to withstand dust, water, and harsh environments typically found in industrial facilities. UL 1449 certification further confirms safety performance. The internal circuit breaker simplifies service needs, making ongoing maintenance practical even in challenging outdoor or warehouse applications.
This device is UL 1449 certified for surge protection performance and safety. It is housed in a NEMA 4 enclosure, providing weather resistance suitable for indoor and limited outdoor use in industrial settings. The combination of UL 1449 and NEMA 4 supports compliance with many facility safety programs and regulatory requirements.
The built-in circuit breaker enables faster diagnostics and service, reducing maintenance time and panel downtime. The device protects expensive motors, drives, and controllers from transient damage, extending asset life and lowering replacement costs. Its compatibility with the Power Xpert SPD ecosystem supports a cohesive protection strategy across multiple panels, delivering long-term cost savings.