Eaton SPD100240S3A Surge Protection Device - UL Listed
Part Number: SPD100240S3A
Quick Summary
SPD100240S3A is a surge protection device designed to shield electrical panels from transient voltages in 120/240 V split single-phase systems. This is critical when surges from lightning or switching events threaten sensitive drives and controls, causing downtime and equipment damage. The unit carries UL 1449 listing and features EMI/RFI filtering for cleaner power, plus an audible alarm, the rest button, and a built-in surge counter for proactive monitoring. Internal mounting simplifies installation and reduces enclosure footprint. It is designed for Direct bus mounted panelboards PRL1a, 2a, 3a, and 3e, delivering reliable protection with a fifteen-year warranty and a compact form factor that supports ongoing maintenance and regulatory compliance.
Product Information
Extended Description
SPD100240S3A Eaton: Eaton Surge Protection Device, SPD Series, 100 kA per phase, 120/240V split single-phase rating, 150 L-N, 150 L-G, 150 N-G, 300 L-L MCOV, Internal integrated, and surge counter, used with Direct bus mounted panel boards (PRL1a, 2a, 3a, 3e)
Product Name
Eaton SPD series surge protection device
Catalog Number
SPD100240S3A
UPC
786685317441
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 UL Listed
Type
SPD
Special features
Meets or exceeds the requirements specified in IBC ®2006, CBC2007, and UBC®Zone 4. Audible alarm with silence button. Form C relay contact. EMI/RFI filtering, providing up to 50 dB of noise attenuation from 10 kHz to 100 MHz. Surge counter with rest button
Accessories
Standard feature package and surge counter
Frequency rating
50/60 Hz
Interrupt rating
200 kAIC
Nominal Discharge Current
20 kA
Operating voltage
150 L-N, 150 L-G, 150 N-G, 300 L-L
Used with
Direct bus mounted panelboards (PRL1a, 2a, 3a, 3e)
Voltage rating
120/240 V split single-phase
Surge current
100 kA per phase
Short-circuit rating
200 kA
Operating temperature
-40 to 50 °C
Mounting Method
Internal integrated
Feature: 100 kA per phase surge current and 200 kAIC interrupt rating. Business impact: delivers robust protection for critical loads, minimizes nuisance faults, and reduces equipment downtime. Application: ideal for 120/240 V split single-phase power in industrial and commercial panels. Feature: Internal integrated mounting. Business impact: reduces space requirements and speeds up installation, lowering labor costs. Application: Direct bus mounted panelboards PRL1a, 2a, 3a, 3e. Feature: EMI/RFI filtering up to 50 dB from 10 kHz to 100 MHz. Business impact: cleaner power improves PLC and drive reliability, lowers EMI-related faults. Application: sensitive control circuits and motor drives. Feature: Audible alarm with silence button and Form C relay contact. Business impact: immediate fault indication and seamless integration with building management or control systems. Application: quick fault response in dynamic industrial environments. Feature: Surge counter with rest button. Business impact: straightforward maintenance and verifiable protection performance over time. Application: routine protection health checks in panel installations. Feature: 15-year warranty and UL 1449 listing. Business impact: long-term value, regulatory confidence, and reduced lifecycle costs. Application: mission-critical protection for Direct bus mounted systems and compliant electrical protection strategies.
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FAQs
When installing the SPD100240S3A with Direct bus mounted panelboards PRL1a, 2a, 3a, or 3e, plan for internal mounting to minimize enclosure space consumption. Ensure adequate clearance for heat dissipation and verify conformity with local electrical codes. The device’s compact 9.5 in length and integrated features help streamline wiring, reducing field labor and potential connection errors.
A 100 kA per phase surge current rating means the SPD100240S3A can absorb and divert high-energy transient events without compromising the connected load. In 120/240 V split-phase systems, this level of protection reduces risk to drives, PLCs, and motors, lowering the likelihood of unrecoverable damage and extending equipment life in industrial environments.
Yes, the SPD100240S3A is rated for 50/60 Hz operation and includes EMI/RFI filtering that provides up to 50 dB of noise attenuation from 10 kHz to 100 MHz. This helps maintain clean power for sensitive electronics, improving system stability and reducing nuisance trips in environments with switching equipment and variable loads.
The SPD100240S3A carries UL 1449 listing, signifying compliance with established surge protection safety standards. This certification supports regulatory acceptance, enhances reliability expectations for electrical protection devices, and provides assurance during audits or when sourcing components for critical infrastructure projects.
Installing the SPD100240S3A helps reduce downtime by protecting critical loads from transient events and enabling rapid fault indication via the built-in audible alarm and surge counter. The 15-year warranty further lowers lifecycle costs, providing long-term protection with fewer replacements and lower maintenance overhead in industrial facilities.