Eaton SPD100240D3A Surge Protection Device - UL Listed
Part Number: SPD100240D3A
Quick Summary
The Eaton SPD100240D3A surge protection device protects 3‑phase 240 V panel boards in industrial and commercial electrical systems. Surges can damage sensitive equipment and trigger costly downtime if not mitigated. This unit carries UL 1449 certification and UL Listed status, with EMI/RFI filtering up to 50 dB and a built‑in surge counter to support ongoing reporting. Designed for Direct bus mounted panel boards PRL1a, 2a, 3a, 3e, it also offers a 15‑year warranty and robust temperature tolerance (-40 to 50 °C), delivering reliable protection while helping you meet compliance and maintenance objectives. In practice, it pairs well with panel protection strategies that aim to minimize outages and extend asset life.
Product Information
Extended Description
SPD100240D3A Eaton: Eaton Surge Protection Device, SPD Series, 100 kA per phase, 240V delta (3W+G) rating, 320 L-G, 320 L-L MCOV, Internal integrated, Standard feature package and surge counter, used with Direct bus mounted panel boards (PRL1a, 2a, 3a, 3e)
Product Name
Eaton SPD series surge protection device
Catalog Number
SPD100240D3A
UPC
786685317458
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
320 L-G, 320 L-L
Used with
Direct bus mounted panelboards (PRL1a, 2a, 3a, 3e)
Voltage rating
240 delta (3W+G)
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 with 320 V L‑G / 320 V L‑L ratings. Business Impact: High-energy handling reduces the risk of thermal damage to downstream equipment, lowering unplanned downtime and maintenance costs. Application: Ideal for 3‑phase delta (240 V) systems in manufacturing lines and data‑driven facilities. The result is better uptime and longer service life for drives, PLCs and motors. Feature: Audible alarm with silence button and Form C relay contact. Business Impact: Immediate on‑site alerting and seamless integration with building or machine control systems for fast fault isolation. Application: Useful in control rooms and switchgear cabinets where operator awareness is critical. Feature: EMI/RFI filtering up to 50 dB from 10 kHz to 100 MHz. Business Impact: Cleaner power trains improve control loop stability and sensor accuracy, enhancing process consistency. Application: Essential for precision automation and servo deployments. Feature: Surge counter with rest button. Business Impact: Enables proactive maintenance and dose‑response tracking to reduce long‑term protection gaps. Application: Helpful for predictive maintenance programs. Feature: Internal integrated mounting and compatibility with Direct bus mounted panel boards PRL1a, 2a, 3a, 3e. Business Impact: Simplifies installation, reduces hardware footprint, and speeds upgrades. Application: Suitable for retrofit projects and new panelboard installations. Feature: 15‑year warranty and UL 1449 / UL Listed certifications. Business Impact: Long‑term protection with independent certification supports compliance and total cost of ownership goals. Application: Recommended for mission‑critical environments where reliability matters.
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FAQs
SPD100240D3A is designed for direct mounting in compatible Direct bus mounted panel boards (PRL1a, 2a, 3a, 3e). Ensure clearance for the visible indicators, confirm space for the internal surge counter, and wire per the device’s 320 V L‑G/L‑L ratings. Verify temperature limits of -40 to 50 °C and secure mounting to avoid vibration or impact during service.
SPD100240D3A carries UL 1449 listing, confirming compliance with surge protective device performance standards. The UL Listed label further verifies adherence to safety and performance criteria, including surge handling of 100 kA per phase and overall reliability in industrial environments. Refer to the Eaton datasheet for installation and testing procedures aligned with UL guidance.
Yes. The unit is rated for 240 V delta configurations (3W+G) with 320 V L‑G and L‑L operating voltages, making it suitable for typical 3‑phase delta installations. Its 100 kA per phase surge capacity and 200 kA short‑circuit rating provide robust protection for drives, PLCs, and sensors in these systems.
The device includes an internal surge counter with a rest button for monitoring and resetting protection events, an audible alarm with a silence option for operator notifications, and a Form C relay contact to integrate with plant control logic. These features streamline maintenance planning and allow rapid fault isolation when surges occur.
Key specs include 100 kA per phase surge current, 320 V L‑G/L‑L ratings, 200 kAIC short‑circuit rating, 50/60 Hz compatibility, and a 15‑year warranty. These factors translate to reduced downtime, extended equipment life, lower replacement costs, and improved system reliability—especially in environments with frequent transient events.