Eaton SPD100240H4K Surge Protection Device - UL 1449
Part Number: SPD100240H4K
Quick Summary
SPD100240H4K is Eaton's surge protection device that guards electrical panels against transient surges in industrial applications. Downtime from voltage spikes can cripple production and inflate maintenance costs. UL 1449 listed delivers trusted surge mitigation, and the unit's NEMA 1 enclosure supports reliable indoor mounting in standard electrical rooms. Designed for 240V high-leg delta systems (4W+G) on the B phase, it comfortably accommodates evolving facility loads. This Power Xpert SPD, with straightforward installation, helps electrical teams meet protection standards while reducing ownership costs and extending equipment life. In manufacturing and data-center environments, it adds a scalable protection layer for panels and switchgear.
Product Information
Extended Description
SPD100240H4K Eaton: Eaton Surge Protection Device, SPD Series, 100 kA per phase, 240 Delta High Leg (4W + G) on 'B' Phase, Power Xpert SPD, NEMA 1 enclosure
Product Name
Eaton SPD series surge protection device
Catalog Number
SPD100240H4K
UPC
786689404642
Product Length/Depth
3.48 in
Product Height
12.05 in
Product Width
7.47 in
Product Weight
6.8 lb
Certifications
UL 1449
Accessories
Power Xpert SPD
Used with
NEMA 1 enclosure
Voltage rating
240V high-leg delta (4W+G) on B phase
Surge current
100 kA per phase
The SPD100240H4K delivers a 100 kA per phase surge current rating, providing strong protection against transient overvoltages. This reduces the likelihood of capacitor or drive failures and minimizes unplanned downtime, especially in critical loads like motor drives and control panels. It is designed for 240V high-leg delta systems on the B phase (4W+G), enabling seamless integration with existing transformer configurations and reducing wiring complexity for panel upgrades. The NEMA 1 indoor enclosure supports reliable, dust-protected installations in standard electrical rooms, accelerating retrofits and new builds alike. Power Xpert SPD compatibility and the included Power Xpert SPD accessories streamline protection deployment, enhancing system visibility and maintenance planning. With its compact footprint (3.48 in depth, 12.05 in height, 7.47 in width) and 6.8 lb weight, installation is straightforward in space-constrained panels, improving retrofit feasibility and total cost of ownership. The device carries UL 1449 certification, reinforcing compliance with essential safety standards while delivering dependable performance in demanding environments.
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FAQs
Follow the Eaton installation guide to mount the SPD in the panel, connect conductors to the appropriate terminals, ensure proper polarity and grounding, and maintain required clearances. The NEMA 1 enclosure simplifies indoor installations and reduces the need for additional enclosure accessories when retrofitting existing panels.
The device provides 100 kA per phase surge current rating, delivering robust protection against transient surges to protect connected loads and minimize equipment damage.
Yes. The SPD100240H4K is specified for 240V high-leg delta (4W+G) configurations on the B phase, making it suitable for systems that use high-leg delta transformers without additional adapters.
It is UL 1449 listed, housed in a NEMA 1 indoor enclosure, and is designed to meet essential protection standards for indoor electrical rooms and panels.
It reduces downtime from transient events, extends the life of protected equipment, simplifies compliance with UL 1449 and related standards, and supports faster retrofit projects with a compact, easy-to-install form factor.