E⁵ – The Next Generation of NH Fuse Switches vertical-design

With the new E⁵ series, EFEN sets a new benchmark for operator safety, functional versatility and seamless system integration. Designed for the demanding requirements of modern power distribution, the E⁵ range covers sizes 00/185 to 3 with rated currents from 160 to 2000 A – delivering maximum flexibility in an impressively compact footprint.

Maximum Safety Through Intelligent Interlocking

Safety is at the core of the E⁵ design. The series features a consistently enhanced mechanical interlocking system that ensures safe operation even under challenging conditions.

• A technical interlock ensures that the switching cage can only be removed by pressing the yellow release buttons.
• Fuse removal is clearly defined both visually and mechanically via a dedicated yellow push button.

These coordinated safety mechanisms provide outstanding operator protection and minimize the risk of incorrect handling.

Flexible Architecture, Smart Connectivity

The E⁵ series integrates effortlessly into 185‑mm busbar systems and offers a wide range of configuration options:

• 1‑ or 3‑pole switching
• Cable connection via cable lugs or V‑clamps
• Disconnect rails for busbar feed‑in up to 2000 A

This modularity makes the E⁵ the ideal choice for scalable power distribution systems and customized installation concepts.

Advanced Monitoring for Maximum Operational Reliability

To ensure reliable system protection, the E⁵ series offers multiple options for fuse monitoring:

• Installation on the switch cover or on the base unit
• Phase‑specific monitoring for precise fault detection
• Modbus communication for seamless integration into monitoring and SCADA systems

These features enable continuous condition monitoring.

Integrated Measurement Without Additional Space Requirements

In combination with the MEM 1 Gen.2 measurement modules, the E⁵ series enables intelligent grid monitoring without increasing installation dimensions. Thanks to RJ45 interfaces for data and power supply, the plug‑and‑play concept is implemented consistently. Low‑signal or current transformers are fully integrated within the device envelope, ensuring:

• No additional installation space
• Accurate energy and load measurement during operation
• Fast and clean integration into digital infrastructures

E⁵ – Safety, Flexibility and Digital Intelligence in One System

The new E⁵ series combines cutting‑edge safety engineering, modular installation flexibility and modern digital monitoring capabilities. It is the ideal solution for operators who want to future‑proof their power distribution systems while reducing installation effort and maximizing operational reliability.

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