Eaton SPM120240S4R SPD - Surge Protection UL 1449
Part Number: SPM120240S4R
Quick Summary
Eaton SPM120240S4R surge protection device shields critical equipment in industrial power systems. Surges and transients can cause costly downtime and equipment damage, so robust suppression is essential. This model carries UL 1449 certification and uses a rugged NEMA 4 enclosure with an internal circuit breaker for streamlined protection in challenging environments. By combining high transient tolerance with a user-friendly design, it delivers reliable protection for control panels, motors, and automation systems, while supporting Power Xpert SPD compatibility and scalable protection strategies across your facility.
Product Information
Extended Description
SPM120240S4R Eaton: Eaton SPD Max series surge protection device, SPD Max Series, 120 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
SPM120240S4R
UPC
786689409791
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
120kA per phase
120 kA per phase surge protection reduces the risk of downstream faults during high-energy transients. This translates to less downtime and longer component life for PLCs, drives, and motors in automated lines. Suitable for panelboards and distribution enclosures in manufacturing facilities. 120/240V split-phase voltage rating supports typical industrial distribution schemes, simplifying breaker coordination and protection strategy. Suitable for control panels, motor starter assemblies, and machines that run on split-phase power, enabling straightforward integration into existing electrical infrastructure without custom transformers. NEMA 4 enclosure with internal circuit breaker provides rugged protection against dust, water spray, and corrosion in harsh environments, reducing enclosure clutter and external components. Install in manufacturing floors, outdoors, or washdown areas where environmental sealing and local fault isolation are valuable. UL 1449 certification demonstrates compliance with recognized safety and performance standards, lowering procurement risk and supporting regulatory audits. Procurement for facilities, data centers, and IEC/UL-compliant projects where documented protection performance is required. Compatibility with Power Xpert SPD family enables scalable, centralized protection across multiple machines and panels, simplifying maintenance and replacement planning. Data centers and industrial plants can deploy modular SPD protection with phased upgrades. Compact footprint and serviceability fit standard rack and enclosure spaces while preserving service access, accelerating installation and future upgrades in retrofit projects where space is tight.
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FAQs
To install the SPM120240S4R, mount the unit in or adjacent to the electrical panel and connect the line and load conductors according to the Eaton installation guide. The internal circuit breaker simplifies wiring by eliminating the need for an external protective device. Verify compatibility with your panel's bus configuration and ensure proper grounding per NEC requirements.
The SPM120240S4R delivers 120 kA per phase transient protection and operates on a 120/240V split-phase system. This combination supports high-energy events while aligning with common industrial power distributions, enabling reliable protection for controllers, drives, and sensing equipment.
Yes. Its high surge tolerance, UL 1449 certification, and rugged NEMA 4 enclosure make it suitable for data centers, automation cabinets, and manufacturing lines. It helps minimize downtime, protects critical automation components, and integrates with modular SPD strategies used in modern facility protection plans.
This device carries UL 1449 certification and uses a NEMA 4 enclosure, ensuring compliance with recognized safety and environmental protection standards. These certifications support regulatory audits, procurement approvals, and safer operation in harsh industrial environments.
Maintenance is typically limited to periodic inspection of connectors and enclosure seals, with the internal breaker reducing external wiring complexity. ROI comes from reduced downtime, extended equipment life, and lower panel-failure risk, especially in environments prone to transients and electrical noise such as manufacturing floors and data centers.