Eaton SPD100240H3O Surge Protection Device - UL 1449
Part Number: SPD100240H3O
Quick Summary
SPD100240H3O is a surge protection device designed to safeguard electrical distribution equipment in industrial facilities. For engineers grappling with damaging utility or switching surges, unreliable protection translates to costly downtime and accelerated component wear. This model is UL 1449 certified with a NEMA 4X enclosure and a 15-year warranty, offering reliable performance in harsh environments. With external side mounting and 240V delta (4W+G) configuration, it integrates seamlessly into existing panels while delivering robust protection. By combining strong protection with easy installability, it supports uptime, reduces maintenance, and helps facilities meet regulatory expectations and maintenance budgets.
Product Information
Extended Description
SPD100240H3O Eaton: SPD, 100 kAIC, 240V high-leg delta (4W+G) on B phase, Standard feature package and surge counter, NEMA 4 with internal disconnect enclosure, External side mount, 150 L-N, 150 L-G, 150 N-G, 300 L-L operating voltage
Product Name
Eaton SPD series surge protection device
Catalog Number
SPD100240H3O
UPC
786685337357
Product Length/Depth
9.5 in
Product Height
3.45 in
Product Width
5.4 in
Product Weight
3.5 lb
Warranty
15 year
Certifications
UL 1449
Type
Surge protection device
Accessories
Standard feature package and surge counter
Voltage rating
240V delta (4W+G)
Enclosure
NEMA 4X
Mounting Method
External side
Interrupt rating
100 kAIC
Operating voltage
150 L-N, 150 L-G, 150 N-G, 300 L-L
Series
SPD
Eaton’s SPD Series (Sidemount Versions) Brochure
Eaton SPD Series - For Mounting External To Electrical Distribution Equipment Installation Manual
Eaton Specification Sheet - SPD100240H3O
Eaton’s SPD Series (Sidemount Versions) Data Sheet
Feature → Business Impact → Application: 100 kAIC interrupt rating provides high-energy surge handling, reducing the risk of transformer and switchgear damage during extreme events, which translates to minimized downtime and lower retrofit costs for industrial plants. This enables protection for motors, drives, and control circuits in manufacturing lines and process plants. Feature → 240V delta (4W+G) compatibility accommodates high-leg delta systems, ensuring reliable protection for mid-size facilities using delta services, including outdoors and semi-exposed panels. Application: data centers, machine shops, and heavy industries. Feature → NEMA 4X enclosure delivers weatherproof, corrosion-resistant protection for indoor and outdoor installations, increasing equipment reliability in harsh environments. Application: outdoor switchgear cabinets, parking structures, and loading docks. Feature → External side mounting simplifies retrofits and new installations by aligning with existing distribution gear, reducing mounting time and field wiring errors. Application: sidemounted SPD integration into Eaton SPD series and similar sidemount configurations. Feature → Standard feature package and surge counter enables monitoring and traceability of surges, supporting maintenance planning and electrical compliance. Application: ongoing reliability programs and audits. Feature → 15-year warranty and UL 1449 certification provide lifecycle cost certainty, reducing total cost of ownership and supporting long-term budgeting. Application: enterprise-scale facilities prioritizing predictable protection budgets and risk mitigation.
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FAQs
Installers should mount the unit on a suitable external surface using the side-mount feature, connect L-L, L-N, L-G and N-G per the installation manual, and ensure the internal disconnect (if used) remains accessible. The NEMA 4X enclosure provides weather protection, while the surge counter enables ongoing monitoring for maintenance planning.
The SPD100240H3O is rated for 240V delta (4W+G), with a 100 kAIC interrupt rating. It supports 150 L-N, 150 L-G, 150 N-G, and 300 L-L operating voltages, and uses a sidemount external mounting method within a NEMA 4X enclosure.
Yes. The device is designed for 240V delta (4W+G) service configurations, providing effective surge protection for high-leg delta systems commonly used in industrial facilities. Its 100 kAIC rating helps safeguard motors and control circuits against large transient events.
SPD100240H3O carries UL 1449 certification, confirming adherence to recognized safety and performance standards for surge protection devices. The NEMA 4X enclosure offers environmental protection, and a 15-year warranty provides long-term reliability and total cost-of-ownership benefits for industrial installations.
By reducing surge-induced outages and equipment damage, this SPD lowers maintenance costs and unplanned downtime. The built-in surge counter aids proactive maintenance and compliance reporting, while the 15-year warranty minimizes lifecycle costs, delivering predictable ROI for facilities with critical electrical infrastructure.