Eaton SP3-480D Surge Protective Device - 50 kAIC
Part Number: SP3-480D
Quick Summary
The Eaton SP3-480D surge protective device safeguards electrical systems against transient overvoltages in industrial power distributions. For engineers and procurement teams, surges from switching events or lightning can cause unexpected downtime and accelerated equipment wear. Many SP3 devices are designed to meet CE marking, UL safety approvals, and IEC 61643-11 compliance, depending on regional requirements. This protection translates to improved uptime and lower total cost of ownership for critical equipment, while maintaining a compact footprint in motor control centers and panelboards.
Product Information
Extended Description
SP3-480D Eaton: Eaton Innovative Technology Protector surge protective device, Surge Protection Device, SP3 series, 50 kAIC, 480 delta, three phase
Product Name
Eaton SP3 surge protective device
Catalog Number
SP3-480D
UPC
786689805586
Product Length/Depth
2.5 in
Product Height
4.8 in
Product Width
2.9 in
Product Weight
1.25 lb
Feature: 50 kAIC surge rating for three-phase 480V delta systems → Business Impact: Stronger transient containment reduces the risk of insulation damage and nuisance trips, lowering maintenance costs and downtime → Application: Critical machinery in manufacturing lines and HVAC MCCs benefit from reliable surge suppression. Feature: Compact, lightweight form factor (2.5 in L x 4.8 in H x 2.9 in W; 1.25 lb) → Business Impact: Easier installation in crowded panels and on standard DIN rails, saving panel space and reducing install time → Application: Industrial control panels and switchgear assemblies with limited space. Feature: SP3 series-based design with Eaton Innovative Technology Protector → Business Impact: Proven reliability and consistent protection performance across service conditions → Application: Data centers, processing facilities, and machine centers requiring robust surge mitigation. Feature: Clear labeling and straightforward wiring for compatibility and replacement → Business Impact: Simplified maintenance and faster part swaps minimize downtime → Application: Field service scenarios and preventative maintenance routines. Feature: 480V delta three-phase suitability with three-phase protection → Business Impact: Protects heavy loads like motors and drives from transient events, extending equipment life and reducing spare parts costs → Application: Motor control centers and drive cabinets across manufacturing and irrigation sectors.
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FAQs
Install the SP3-480D in the designated surge protection location within the 480V delta three-phase panel. Connect the three phase lines (L1, L2, L3) as labeled, and ensure proper grounding per plant practices. Verify clear labeling, secure mounting, and tighten connections to prevent loose-terminals, then perform a system test to confirm surge suppression in normal operation.
SP3-480D provides a 50 kAIC surge rating, designed for three-phase 480V delta systems. It’s engineered to clamp transient voltages and protect downstream equipment from voltage spikes caused by switching events or external disturbances, helping to maintain power quality and reduce equipment stress.
Yes. Its 50 kAIC rating and three-phase 480V delta compatibility make it suitable for data centers, motor control centers, and other critical industrial applications where high surge resilience is required. Its compact footprint simplifies integration into existing panels without compromising space for other devices.
Regional certifications for surge protective devices vary. Typical SPDs like SP3-480D are aligned with common industry standards such as IEC 61643-11 and UL 1449, and may carry CE marking where applicable. Always verify the exact certifications with Eaton for your region and project requirements.
The SP3-480D offers low ongoing maintenance due to solid-state protection and a replaceable or serviceable design. By reducing downtime from surge events and extending the life of downstream equipment, it lowers maintenance costs and total cost of ownership. Plan periodic inspections after large surge events and maintain spare SPDs for quick replacement.