3-Phase DIN Rail Surge Protection Device | Type 1CA SPD | 415/240VAC | UL 1449 4th Edition | 200kA SCCR
3-Phase DIN Rail Surge Protection Device
The ASI SP275A-3P Surge Protection Device (SPD) helps protect industrial control panels, automation systems, PLCs, drives, and electrical equipment from damaging transient voltage surges caused by lightning strikes, utility switching, and electrical disturbances.
Designed for 3-phase 415/240VAC WYE power systems, this UL 1449 4th Edition Type 1CA surge protective device provides reliable protection at the service entrance or distribution panel. The DIN rail mount design, replaceable protection modules, and integrated visual status indication simplify installation and maintenance while helping reduce costly equipment failures and downtime.
Why Install a Surge Protection Device?
Modern industrial control systems contain sensitive electronics including PLCs, HMIs, VFDs, power supplies, communication equipment, and instrumentation that can be damaged by transient voltage surges.
Installing a surge protection device helps divert damaging surge energy away from critical equipment, reducing unexpected downtime, minimizing repair costs, and extending the life of electrical and electronic components.
What Problem Does This Solve?
Power surges caused by lightning, utility switching, motor starting, or internal electrical disturbances can damage expensive industrial equipment and interrupt production.
The ASISP275A-3P provides continuous surge protection by safely diverting transient overvoltages before they reach sensitive control equipment, helping maintain reliable operation of industrial electrical systems.
Key Features
• UL 1449 4th Edition Type 1CA Surge Protection Device
• Designed for 3-Phase 415/240VAC WYE Systems
• DIN Rail Mount Design
• 200kA Short Circuit Current Rating (SCCR)
• Replaceable Plug-In Protection Modules
• Thermally Protected High-Energy MOV Technology
• Visual Green/Red Status Indicator
• Optional Remote Alarm Contacts
• No Additional Overcurrent Protection Required
• Meets UL1449 4th Edition and IEC61643-11 Standards
Applications
• Industrial Control Panels
• PLC Systems
• Motor Control Centers (MCC)
• Variable Frequency Drives (VFD)
• Manufacturing Equipment
• Process Control Systems
• Water & Wastewater Facilities
• HVAC Equipment
• Data Centers
• Electrical Distribution Panels
• EV Charging Systems
• Renewable Energy Systems
Commonly Protects
• PLC Controllers
• HMIs
• Variable Frequency Drives
• Industrial Power Supplies
• Servo Drives
• Industrial Networking Equipment
• Control Relays
• Instrumentation
• SCADA Equipment
• Automation Systems
Why Choose This Product?
Unlike standard surge suppressors, the ASISP275A-3P is designed specifically for industrial power distribution systems. Its high surge capacity, thermally protected MOV technology, replaceable modules, and 200kA SCCR provide reliable protection for mission-critical industrial equipment.
The plug-in replacement modules reduce maintenance time, while the visual status indicator and optional remote alarm contacts simplify preventative maintenance and system monitoring.
Why Buy From ASI?
• Stocked in Pennsylvania, USA
• Fast Shipping Available
• Technical Product Support
• Industrial Automation Specialists Since 1999
• Complete Industrial Surge Protection Solutions
