Eaton SPD100240S1N Surge Protection Device - UL 1449
Part Number: SPD100240S1O
Quick Summary
SPD100240S1N surge protection device protects electrical systems from transient overvoltage in industrial power distribution. This addresses the common pain point of unpredictable voltage spikes that can damage downstream equipment and cause costly downtime. The product carries UL 1449 safety certification and a robust NEMA 4X enclosure, supporting harsh environments, with external sidemount installation for flexible integration. Designed for 120/240 V systems, it delivers reliable protection across control panels, switchgear, and distribution boards while helping facilities meet reliability and safety targets with minimal footprint.
Product Information
Extended Description
SPD100240S1O Eaton: Surge Protection Device, SPD series, 100 kAIC, 120/240V Split single-phase, Basic feature package, 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
SPD100240S1O
UPC
786685337128
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
Basic feature package
Voltage rating
120/240 V
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 - SPD100240S1O
Eaton’s SPD Series (Sidemount Versions) Data Sheet
Feature to business impact to application: The SPD100240S1N offers a 100 kAIC interrupt rating, delivering high surge capacity that protects critical loads and reduces unplanned downtime in power distribution networks; this translates to lower maintenance costs and extended equipment life in industrial facilities. Application-wise, it’s ideal for control panels and switchgear with external sidemount installation, enabling quick retrofits and simplified wiring without disrupting ongoing operations. The 120/240 V split single-phase design supports common commercial and industrial power networks, ensuring compatibility with existing feeders and enabling rapid deployment across mixed loads such as motors, drives, and lighting. With a NEMA 4X enclosure, the device withstands dust, water, and washdowns, making it suitable for outdoors or harsh indoor environments, reducing enclosure-related failures and improving long-term reliability. The included basic feature package keeps initial deployment economical while providing essential surge protection for immediate results. A 15-year warranty further lowers total cost of ownership, providing assurance for procurement and maintenance planning. Industry-wide, sidemount SPD configurations are widely adopted for their installer-friendly integration with minimal space requirements, boosting installation efficiency and system resilience.
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FAQs
Installation is simplified by its external sidemount design, which allows attachment to the side of distribution equipment without removing the enclosure. Verify panel clearances, route the conductors to L-N, L-G, N-G, and L-L terminals, and secure the unit with factory-recommended mounting hardware. Follow the included Eaton installation manual and ensure the 120/240 V supply is within spec to preserve protection integrity.
SPD100240S1N provides a 100 kAIC interrupt rating, capable of handling high-energy transients common in industrial environments. It protects against voltage spikes between L-N, L-G, N-G, and L-L paths on a 120/240 V split single-phase system, reducing the likelihood of equipment damage to controllers, drives, and sensors while maintaining system performance during faults.
Yes. The device uses a NEMA 4X enclosure designed for weather resistance and washdown compatibility, supporting installation in exposed or challenging environments. This helps ensure long-term reliability for outdoor panels, manufacturing floors, and utility areas where moisture, dust, and cleaning processes are factors.
The SPD100240S1N carries UL 1449 certification for surge protective devices, confirming safety and performance standards. It comes with a 15-year warranty, providing long-term assurance and favorable total cost of ownership for procurement teams evaluating lifecycle and maintenance planning.
While maintenance is typically low for SPD devices, the 100 kAIC protection reduces the frequency of downstream failures, decreasing downtime and spare-parts costs. The 15-year warranty further improves ROI by lowering lifecycle expenses, and the sidemount, external installation reduces labor time during upgrades or retrofits in busy industrial environments.