Eaton SPM160400Y4R Surge Protection Device - UL 1449
Part Number: SPM160400Y4R
Quick Summary
The Eaton SPM160400Y4R surge protection device protects critical electrical infrastructure in three-phase four-wire power systems. Engineers often struggle with nuisance trips and inconsistent protection coordination across panels. UL 1449 listed with a NEMA 4 enclosure helps ensure reliability in harsh environments. Its 160 kA per-phase rating provides fast, reliable clamping across varying loads and during motor start-ups. The internal circuit breaker simplifies integration and protection coordination with upstream devices while maintaining easy serviceability. Designed for Eaton's SPD MAX family, it fits standard power distribution architectures and aligns with Power Xpert controllers. In many industrial settings, this combination lowers maintenance costs and improves uptime by mitigating transient overvoltages.
Product Information
Extended Description
SPM160400Y4R Eaton: Eaton SPD Max series surge protection device, SPD Max Series, 160 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
SPM160400Y4R
UPC
786689409777
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
160kA per phase
Feature: The 160 kA per-phase surge rating provides robust transient suppression for 230/400 V 4W+G systems. Business impact: This capability minimizes transient damage to drives, controllers, and switching gear, reducing unplanned downtime and maintenance costs in high-demand production environments. Application: Ideal for manufacturing lines, machine centers, and critical power feeds where transient overvoltages are frequent and expensive to resist. Feature: The 230/400 V Wye (4W+G) configuration provides compatibility with common industrial power architectures. Business impact: Simplifies design, reduces miswiring risk, and accelerates panel assembly with predictable protection performance. Application: Suitable for panels in North American and many global facilities that run three-phase distribution with a grounded-neutral system. Feature: NEMA 4 enclosure with an internal circuit breaker ensures reliable operation in outdoor and harsh indoor environments while enabling streamlined protection coordination. Business impact: This reduces weather-related risk and eliminates the need for extra external devices, cutting installation time and ongoing maintenance. Application: Outdoor substations, manufacturing plants near moisture or dust, and rugged industrial spaces. Feature: UL 1449 listing and integration with Eaton's Power Xpert SPD ecosystem provide standard-compliant, scalable protection. Business impact: Meets safety and reliability requirements, supports compliance reporting, and simplifies lifecycle management. Application: Facilities with regulatory oversight or multi-vendor protection schemes seeking a unified SPD strategy. Feature: Physical footprint and weight—9.5 in depth, 17.05 in height, 15 in width, 52 lb—facilitate site planning and fit within standard electrical rooms. Business impact: Facilitates on-site handling, reduces installation time, and minimizes the need for costly structural modifications. Application: Retrofit projects and new builds in existing electrical cabinets or wall-mounted enclosures. Feature: Internal circuit breaker integrated with the SPD reduces external devices and simplifies testing and maintenance. Business impact: Streamlines startup commissioning, reduces spare-part inventories, and shortens mean time to repair after events. Application: New installations and upgrades in panel boards and switchgear assemblies.
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FAQs
To install, mount the device in a suitable panel space, connect the three hot conductors and the neutral/ground per the panel's wiring scheme, and ensure proper grounding per code. Verify the internal circuit breaker is engaged, and route conductors using short, direct runs to minimize inductance. After wiring, perform a functional check and confirm UL 1449 compliance labeling is intact. Always de-energize the system before work and follow manufacturer wiring diagrams for correct phasing and protection zone assignments.
The unit provides 160 kA per-phase surge capability, delivering fast transient suppression to clamp overvoltages quickly. Response times for SPD protection are typically in the nanosecond to microsecond range, ensuring immediate protection for sensitive loads. This performance helps protect drives, controllers, and other critical equipment from lightning-induced surges and switching transients, reducing the risk of damage and downtime.
Yes. The 230/400 V 4W+G configuration and 160 kA per-phase rating make it well-suited for data centers, manufacturing floors, and motor control centers where transient events are frequent. Its NEMA 4 enclosure supports both indoor and outdoor installations, while the internal circuit breaker simplifies protection coordination within existing protection schemes, making it a flexible choice for multiple protection scenarios.
The SPM160400Y4R is UL 1449 listed and features a NEMA 4-rated enclosure with an internal circuit breaker, ensuring suitability for harsh environments. This combination supports safety and reliability requirements and aligns with common industry compliance practices for protection devices in power distribution systems, helping facilities meet regulatory expectations and simplify documentation during audits.
Deploying the SPM160400Y4R reduces unplanned downtime by mitigating transient overvoltages, lowers maintenance costs through fewer component replacements, and simplifies protection coordination with an integrated circuit breaker. Although initial costs may be higher than simple fusing, the long-term savings from increased uptime, extended equipment life, and streamlined maintenance typically justify the investment in industrial environments.