Eaton SPM250240S4R SPD MAX Surge Protection Device - UL 1449
Part Number: SPM250240S4R
Quick Summary
The Eaton SPM250240S4R SPD MAX surge protection device protects 120/240V systems from transients in industrial facilities. Dealing with nuisance outages and equipment wear is a common pain point without robust surge protection. UL 1449 listed and housed in a rugged NEMA 4 enclosure ensure protection in harsh environments. Engineered for power quality and equipment protection, it integrates with Eaton's Power Xpert SPD ecosystem for streamlined maintenance and uptime. Businesses benefit from reduced downtime, easier field replacement, and clear maintenance paths thanks to the internal circuit breaker. With a 250 kA per phase rating and dimensions of 9.5 in depth, 17.05 in height, and 15 in width, it fits standard panels while delivering robust defense. This unit supports reliability and lifecycle cost optimization across industrial installations.
Product Information
Extended Description
SPM250240S4R Eaton: Eaton SPD Max series surge protection device, SPD Max Series, 250 kA per phase, 120/240 Split Phase, Power Xpert SPD, NEMA 4 with internal circuit breaker
Product Name
Eaton SPD MAX series surge protection device
Catalog Number
SPM250240S4R
UPC
786689408251
Product Length/Depth
9.5 in
Product Height
17.05 in
Product Width
15 in
Product Weight
52 lb
Certifications
UL 1449
Voltage rating
120/240V split single-phase
Surge current
250kA per phase
Feature: The 250 kA per phase surge rating delivers robust protection against high-energy transients. Business Impact: This level of protection minimizes motor drive damage and equipment wear, translating into fewer unscheduled outages. Application: Ideal for protecting VFDs, motor starters, and control panels in manufacturing lines and critical process equipment.\n\nFeature: 120/240V split-phase compatibility aligns with common North American distribution; eliminates need for special transformers and adapters. Business Impact: Simplifies installation, shortens project timelines, and reduces wiring errors. Application: Suits service panels and distribution boards in new builds and retrofit projects.\n\nFeature: NEMA 4 enclosure with an internal circuit breaker provides rugged outdoor protection and quick fault isolation. Business Impact: Enables safe, durable installations with reduced maintenance overhead. Application: Outdoor panels, washdown areas, and harsh environments benefit from certified protection.\n\nFeature: UL 1449 listing verifies surge protection performance and reliability. Business Impact: Supports regulatory compliance and reduces inspection risk. Application: Facility upgrades, new builds, and data centers seeking proven protection.\n\nFeature: Compact footprint with 9.5 in depth, 17.05 in height, and 15 in width fits standard panels without crowding. Business Impact: Streamlines retrofit projects and reduces enclosure space requirements. Application: System upgrades in existing racks and new installations.\n\nFeature: Integrated Power Xpert SPD ecosystem simplifies procurement and serviceability. Business Impact: Consolidates protection devices under a single platform, improving warranty handling and asset management. Application: Multi-device protection strategies across manufacturing lines and data centers.\n\nFeature: Built-in status indicators and diagnostic cues help quick fault identification. Business Impact: Reduces MTTR by enabling rapid troubleshooting and proactive maintenance. Application: Panel boards, switchgear, and mechanical rooms where uptime is mission critical.
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FAQs
Install the SPM250240S4R by mounting it in a compliant 120/240V panel with sufficient clearance, then connect the line and neutral conductors to the device's input terminals per the Eaton wiring diagram. Use the internal circuit breaker to isolate the unit for maintenance and verify UL 1449 compliance. Ensure proper labeling and safety procedures before energizing.
It means the device can safely absorb up to 250 kiloamperes per phase of surge energy in a single event, protecting downstream components such as drives, contactors, and controllers from damaging overvoltages. This rating is a key indicator of protection level and is typically matched to facility risk profiles and expected utility transients.
Yes, the 120/240V split-phase configuration and 250 kA per phase protection make it well-suited for data centers, manufacturing floors, and automation panels. For data centers, it helps maintain power quality for critical servers; on manufacturing lines, it protects drives and PLCs. Consider future expansion and parallel devices if higher protection is needed.
This unit is UL 1449 listed, indicating validated surge protection performance and safety for electrical installations. It uses a rugged NEMA 4 enclosure suitable for outdoor and washdown environments. UL 1449 compliance plus enclosure rating ensures regulatory acceptance, safer operation, and easier inspection in industrial facilities. This combination reduces compliance risk during audits and ensures compatibility with standard electrical codes in North American facilities.
By reducing transient-related failures and downtime, the SPM250240S4R lowers repair costs and extends equipment life. Its robust protection minimizes maintenance interruptions, supports longer asset life, and simplifies spare-part inventories with its standard 120/240V footprint. The result is lower total cost of ownership across line upgrades and facility expansions.