ELR-3AN
Earth leakage relay type A, 2 operating thresholds, modular with display, external toroid, auxiliary supply 230VAC
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Made in Italy
In-house development
Industrial reliability
Technical expertise
Contrel solutions
Our Product Range
A selection of Contrel solutions for measurement, protection, control and energy management in industrial applications.
EMA-D6
Compact and versatile network analyzer for energy monitoring, basic power quality and asset management. Thanks to its wide voltage range and multi-range power supply, EMA-D6 can be used in low- and medium-voltage systems up to 690 VAC. Communication is available via RS-485 or Ethernet, with up to 4 digital inputs and multifunction digital outputs for alarm management.
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ELR-3BN
Earth leakage relay type B, 2 operating thresholds, modular with display, external toroid, auxiliary supply 230VAC
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ELR-96B
Type B earth leakage relay for AC/DC systems, ideal for power distribution, sub-distribution and industrial control applications. It protects people against AC, DC and mixed AC/DC leakage currents, including systems with power electronic loads.
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How we work
Reliable Industrial Solutions for Electrical Professionals
Contrel Elettronica is an Italian industrial manufacturer specializing in electronic devices for electrical measurement and protection.
In-House Development
Hardware and firmware fully developed by our internal engineering team
Made in Italy
Design and manufacturing carried out entirely in Italy
Industrial Reliability
Devices engineered for demanding applications and continuous operation
Technical Focus
Clear documentation to support product evaluation and system integration
Why Contrel
Why Choose Contrel
Innovation with Purpose
We combine decades of expertise with continuous R&D to bring forward technologies that solve real-world electrical challenges.
Certified Quality
Among the first Italian companies certified ISO 9001, we uphold rigorous quality systems across design, production, and support.
Customer-Centric Support
From initial consulting to after-sales assistance, our technical team ensures you get the right solutions, installed and maintained with excellence.
Sustainability Commitment
We actively reduce our environmental footprint — including powering facilities with onsite solar generation — reflecting our long-term commitment to sustainability.
From Contrel
Latest News
Product news, technical updates and developments from the company.
24 Aug 2026
EMS-D3: new compact multifunction digital multimeter for electrical monitoring
Contrel introduces EMS-D3, the new 3-DIN-module multifunction digital multimeter designed for comprehensive monitoring of three-phase electrical parameters, featuring a backlit LCD display, energy analysis, THD measurement, digital outputs and Modbus communication.
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24 Aug 2026
The new Contrel 2026 Catalogue is now available
The new Contrel 2026 Catalogue is now online, providing an updated overview of Contrel solutions for electrical measurement, protection, control and monitoring applications.
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24 Aug 2026
HFL-12: fast and accurate insulation fault location for up to 12 circuits
Contrel introduces HFL-12, the new digital insulation fault locator designed to quickly identify the circuit affected by an insulation fault in low-voltage IT systems, with monitoring of up to 12 channels.
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Our team is ready to help you choose the right solution.
