Free Tool
SPD Selector
Tool โ Find the Right
Surge Protector
Use our free SPD selector tool to find the right CE certified surge protector for your application โ AC, DC, solar PV, or signal line. Answer 2โ3 questions and get matched recommendations in under 60 seconds.
60s
Average Selection Time
4
Application Types
58+
CE Certified Models
How It Works
1
Select your application โ AC power, DC/solar, or signal line
2
Choose your parameters โ voltage, phase, protection type
3
Get matched products โ with specs, links, and a direct quote option
1
Application
2
Parameters
3
Results
Step 1 โ What Are You Protecting?
Select your power or signal type
Step 2 โ AC Supply Configuration
Single phase or three phase?
Step 3 โ SPD Protection Level
Where in the electrical installation is this SPD installed?
Step 2 โ DC Voltage Range
What is your system voltage?
Step 2 โ PV System Voltage
What is your PV string voltage?
Step 2 โ Signal Line Type
What type of signal or data line needs protection?
Recommended Surge Protectors
Your Selection:
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Send us your project specs and our engineers will recommend the right SPD configuration within 24 hours.
SPD Selection Reference Guide
Use these quick references if you need more information before making a selection.
AC SPD Types
Type 1 โ Service entrance, buildings with external lightning protection system (LPS). Iimp rated.
Type 2 โ Sub-distribution panels. The standard choice for most industrial and commercial installations. In rated.
Type 3 โ Point-of-use, directly at equipment. Used alongside a Type 2 upstream. Up โค 1.5kV.
Type 1+2 โ Combined in one unit. Space-saving for buildings without dedicated LPS.
DC & Solar SPD
PV String SPD โ Install at combiner box or inverter DC input. Rated to match string voltage (500/1000/1500Vdc).
BESS SPD โ Battery energy storage systems require SPDs on both DC bus and AC grid connection.
EV Charger SPD โ Install on the AC supply to the charger. Type 2 recommended as minimum.
Standard EN 61643-31 โ Applies to DC SPDs for PV systems. All TrilPeak DC SPDs are CE certified to this standard.
Signal Line SPD
Ethernet โ RJ45 SPDs protect IP cameras, switches, and PoE devices. Choose PoE-rated if applicable.
RS-485 โ 2-wire or 4-wire versions. Used for Modbus, PROFIBUS, BACnet in industrial environments.
CCTV โ Video line SPDs for coaxial (BNC) or UTP-based analogue/IP surveillance systems.
Standard EN IEC 61643-21 โ Applies to signal line SPDs. Request test reports from our team.