Photovoltaic System
Class I (Switch Type)
Class I (Voltage Limited Type)
Class I+II Series
Class II (Plus) Series
Class II Series
Class III Series
Connection in Series
Surge Protective Box
CATV Protection Series
Din-rail Control & Signal Series
3-4 Line Control & Signal Series
Mini RJ45 Surge Protective Device
Aluminum shell Control & Signal Series
19" Rack Control & Signal Series
Antenna Surge Protection
Power over Ethernet Series
Surge & Lightning Counter
Outlet with Surge Protection
DB9 Control & Signal Series
Customer Support

I. Customer Care
LERDN believe that service shouldn't end after you've purchased our products and that, if you've chosen us, we should continue to support you. Whether you require a quote, product information or after sales advice our team is ready to help you.

II. Technical support
Unlike some vendors, we don't simply supply surge protection, we design and manufacture it. Because of this our technical support engineers have the luxury of knowing their products inside out and won't simply be quoting from a support manual.

III. Product Design
We are constantly developing new products to serve the diverse range of applications where surge protection is required. If we do not currently have a product that meets your needs, please contact our design team who will be happy to discuss the development of a new or custom product to your specification.

IV. Getting support
LERDN can be contacted by email spd@lerdn.com or you can contact your local LERDN reprsentative. You can find the details of you local representative in the distribution section of this site.

V. Website help
Can't find what you're looking for on this site? The following are some suggested links to the most requested resources.
If you still can't find what you're after or have a suggestion of how we can improve this site please contact the webmaster.