Eaton SPD100240H2Q Surge Protection Device - UL 1449
Part Number: SPD100240H2Q
Quick Summary
SPD100240H2Q is a surge protection device that guards electrical systems against transient voltages in industrial and commercial applications. It helps prevent nuisance outages and equipment damage caused by motor starts, switching transients, and lightning surges. UL 1449 listing and a NEMA 4X stainless steel enclosure ensure reliable protection in harsh environments, while the external sidemount design simplifies installation. With a 15-year warranty and 100 kAIC interrupt rating, it delivers long-term value for panel builders, OEMs, and maintenance teams. Designed for 240V delta service and 4W+G configurations, it supports critical infrastructure with modern safety and compliance requirements.
Product Information
Extended Description
SPD100240H2Q Eaton: SPD, 100 kAIC, 240V high-leg delta (4W+G) on B phase, Standard feature package, NEMA 4X with internal disconnect stainless steel 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
SPD100240H2Q
UPC
786685342658
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
Voltage rating
240V delta (4W+G)
Enclosure
NEMA 4X
Mounting Method
External side
Enclosure material
Stainless steel
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 - SPD100240H2Q
Eaton’s SPD Series (Sidemount Versions) Data Sheet
Feature: 100 kAIC interrupt rating. Business Impact: High surge withstand capability reduces risk of equipment damage and unplanned downtime, translating to improved line continuity for manufacturing cells and assembly lines. Application: Suitable for heavy-duty industrial panels and motor drives where transient events are frequent. Feature: 240V delta (4W+G) compatibility. Business Impact: Ensures reliable protection for high-leg delta systems common in mid-size industrial facilities, reducing protection gaps. Application: Power distribution in workshops and process lines. Feature: NEMA 4X stainless steel enclosure. Business Impact: Provides corrosion and washdown resistance, enabling outdoor or harsh indoor installations with minimal maintenance. Application: Outdoor substations, outdoor switchgear, and rugged environments. Feature: External sidemount mounting. Business Impact: Simplifies retrofits and field servicing, shortening installation time and reducing labor costs. Application: Retrofit projects and new builds where space and wiring access are constrained. Feature: Operating voltage options L-N, L-G, N-G, L-L. Business Impact: Delivers comprehensive phase-to-phase and phase-to-ground protection, supporting wide network configurations. Application: 4W+G distribution networks and multi-line panels. Feature: 15-year warranty and UL 1449 certification. Business Impact: Provides long-term reliability, lower lifecycle costs, and regulatory confidence for safety-critical systems. Application: OEM assemblies, maintenance contracts, and systems requiring documented protection performance.
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FAQs
The installation follows standard external sidemount procedures: mount the enclosure on a suitable panel surface, wire L and N conductors to the protected terminals, connect the G reference for grounding, and secure with stainless fasteners. Ensure conformity with UL 1449 guidance and verify that the enclosure is rated NEMA 4X for your environmental conditions.
SPD100240H2Q features a 100 kAIC interrupt rating and supports 240V delta (4W+G) configurations. It provides protection across L-N, L-G, N-G, and L-L connections, with operating voltages 150 V line-to-neutral, 150 V line-to-ground, 150 V neutral-to-ground, and 300 V line-to-line. This combination covers common transient events in 240V delta distribution.
Yes. The device is housed in a NEMA 4X stainless steel enclosure, designed to withstand washdowns and corrosive environments. This makes it appropriate for outdoor installations or industrial settings with demanding environmental conditions while maintaining protection integrity.
SPD100240H2Q is UL 1449 listed, reflecting compliance with recognized safety standards for surge protection devices. The UL listing, combined with the NEMA 4X enclosure, provides confidence for safety-critical and regulated industrial applications.
The product carries a 15-year warranty, aligning with long asset lifecycles. This, along with robust enclosure construction and high surge tolerance (100 kAIC), translates to reduced maintenance stops, lower replacement frequency, and predictable total cost of ownership for industrial protection schemes.