DEHNguard EZ Series – Surge protection for your business, from everyday operations to the power behind the data

The DEHNguard EZ Series combines reliable surge protection, easy installation, and serviceable design for business-critical applications. From the versatile, cost-effective EZ50-S to the intelligent, high-capacity EZ300-S, the series helps protect equipment, reduce maintenance, and keep operations running —from business infrastructure to mission-critical data environments.

Surge protection designed for your business

Easy installation and field-replaceable modules

Protection for everything from everyday systems to mission-critical data

Product versions

DEHNguard EZ50-S

Robust and cost-effective surge protection for a wide range of applications. The EZ50-S provides 50 kA maximum surge protection, a 200 kA SCCR, and a pre-wired, serviceable design with field-replaceable modules for easy installation and maintenance.

DEHNguard EZ300-S

Intelligent, high-capacity surge protection for mission-critical facilities. The EZ300-S provides 300 kA per phase protection with intelligent diagnostics, power quality and remote monitoring, plus field-replaceable modules to support uptime and simplify maintenance.

Benefits of a glance

01 — Easy Installation

Designed for straightforward installation, helping reduce setup time and simplify integration into your system.

02 — Pre-wired Connections

Pre-wired connections help reduce on-site wiring effort and make installation faster and more efficient.

03 — Field-Replaceable Plug-in Modules

Individual modules can be replaced instead of the entire SPD, simplifying maintenance and helping reduce downtime and long-term costs.