AC surge protection modules
Explore standalone AC modules and the Type 2 and combined Type 1/2 options listed for the range.
View options & prices →WCED Surge Protection for AC Circuits & Solar PV
WCED • Electrical protection & switching
WCED Surge Protection for AC Circuits & Solar PV
Find standalone surge protection devices and consumer units with surge protection already fitted. Choose the AC or solar DC range first, then check the SPD type, voltage and installation requirements for your design.
Find the right product
Open a product to select its exact configuration and see current prices and availability.
Solar DC surge protection
Browse the listed 600V and 1000V DC module options for PV applications.
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RCBO + SPD consumer unit
Compare fitted IP65 consumer-unit options when you want protection supplied together.
View options & prices →Before you choose
1
AC or DC circuit
Select a device specifically rated for the part of the installation being protected. AC and PV DC devices are not interchangeable.
2
Protection specification
Match SPD type, maximum continuous operating voltage and coordination requirements to the installation design.
3
Installation details
Check the specified backup protection, conductor requirements, space and manufacturer connection instructions before ordering.
Planning an enclosure and components?
Our consumer-unit builder lets you choose single-phase or three-phase, select an enclosure and track the spare DIN space as you add supported components. Custom selections are supplied separately; factory-configured units have their own stated contents.
Build your own consumer unit →Frequently asked questions
Does an SPD replace an RCBO?
No. Surge protection addresses transient overvoltages. RCBOs provide residual-current and overcurrent protection; the functions are different.
Can I use an AC SPD on a solar DC string?
Use a device specifically rated for the PV DC application and the system voltage. Do not substitute an AC SPD.
Should I choose a module or a fitted unit?
A module suits a compatible assembly designed to accept it. A fitted unit provides the components stated in its selected configuration within an enclosure. Check the exact included devices.
Does surge protection include PEN fault protection?
No. These are separate functions. A product includes PEN fault protection only where the chosen configuration explicitly states it.
From our knowledge base
Get more detail before choosing a configuration.
Explore related WCED ranges
Product selection guidance from EcoHarmony. Check the exact product datasheet and manufacturer instructions for the chosen configuration.
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