Circuit Breaker Characteristics B, C, D: Explained, Differences, and How to Choose the Right One
What do the letters B, C, and D mean on a circuit breaker? This is not just labeling, but the main safety parameter of your network. In this article, we analyze why a "powerful" type D breaker can lead to a fire in an apartment and provide simple tables for the right choice...
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26 december 2025
Circuit Breaker Sizing by Power and Current: Online Calculator, Tables, and Complete Expert Guide
Online Circuit Breaker Sizing Calculator and Cable Size Tables. Learn how to choose the right rating, B/C/D characteristics, and protect your home from fire...
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25 december 2025
How to Choose the Right Circuit Breaker for Home and Apartment: Complete Guide 2026
Everything about choosing a circuit breaker for the panel: current calculation tables, characteristic types, and analysis of installation mistakes. Find out which breaker to install for the water heater, sockets, and lighting...
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18 december 2025
GEWISS Industrial Connectors — built for maximum loads and reliability
GEWISS industrial connectors are engineered for heavy-duty applications. With IEC 60309 compliance, wide IP protection range, IK09 durability, nickel-plated contacts, and advanced mounting technology, they ensure stable and safe operation in demanding conditions...
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Overview of SB-H09 three-position switches and SB-H8 load switches from TM UEC
In this review, we discuss the SB-H09 three-position switches and SB-H8 load switches from UEC — reliable solutions for safe control of modes, power sources, and equipment maintenance. We highlight the design advantages, indication, contact group, and available models...
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Overview of UEC differential protection devices: three series for reliable electrical safety
In this video, we look at three series of UEC differential protection devices — SB-L9M, SB-R9NE, and SB-R10N. We explain their differences, operating principles, key technical characteristics, and areas of application to help you choose the best option for your tasks...
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Special discounts of up to 30% on UEC and GEWISS until Black Friday
Up to 30% discounts on UEC and GEWISS equipment for Black Friday. Available only through official partner stores...
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Common mistakes in operating Automatic Transfer Switches (ATS)
Common mistakes in operating Automatic Transfer Switches (ATS): installation, configuration, maintenance, and best practices for reliable backup power supply...
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05 november 2025
Use of GEWISS connectors in power distribution systems
Modern power distribution systems require high reliability, safety, and flexibility. One of the key components of such systems is power connectors, which ensure stable equipment power supply and personnel protection. GEWISS is a European leader in the production of industrial plugs, sockets, and connection systems that comply with international IEC standards. GEWISS power connectors are disting..
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05 november 2025
ChoruSmart: innovative modular fittings for your interior
ChoruSmart – Italian modular fixtures where design meets emotion. Five frame styles, various materials and colors, compatible with Smart Home systems. A detail that completes the interior and adds meaning to the space...
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VII International specialized exhibition ELECTRO INSTALL 2025
UEC and GEWISS invite you to the ELECTRO INSTALL 2025 exhibition in Kyiv. We will present new product series, share technologies of the future, and discuss partnership opportunities...
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Circuit breakers: SB-M8, SB-M9, SB-M9H and SB-M10
This review compares UEC circuit breaker series SB-M8, SB-M9, SB-M9H and SB-M10 to help you choose the right solution for your electrical system...
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Reliable UEC junction boxes for any task!
UEC introduces reliable junction boxes with IP54 and IP67 protection. Easy installation, universal solutions, and support for Ukrainian manufacturing...
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Video review: Distribution boards and enclosures for surface mounting - 40 CD and 40 CDK series
New video review of the 40 CD and 40 CDK series enclosures for surface mounting. The video covers technical specifications, IP55/IP65 protection rating, design features, and application benefits...
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GEWISS review: phase control relay and three-position switch
Review of the GEWISS phase control relay and three-position switch. Protection against phase faults and convenient switching between the main and backup power source...
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GEWISS review: single-phase current relay and undervoltage relay
GEWISS review: single-phase current relay and undervoltage relay. Reliable protection against overloads, short circuits, and undervoltage in single-phase networks...
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“Panel step by step”: planning, selection, installation, verification – UEC
Practical guide to building an electrical panel: from load calculation to installation and testing. Learn how to correctly select UEC breakers and prevent overheating and accidents..
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Typical Mistakes of Beginners: Why You Can't Install a "More Powerful Automatic"
Learn why a "more powerful" modular circuit breaker is dangerous for electrical wiring. Common mistakes, load calculation, selection of UEC circuit breakers, RCDs, and differential circuit breakers according to PUEL. Recommendations for installing a panel in an apartment or house. Prevent overheating and fires!..
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24 august 2025
Premium Junction Boxes: Why It’s Worth Investing in Reliability
Premium junction boxes ensure durability, safety, and compliance with international standards. The best choice for residential, business, and infrastructure projects where reliability comes first...
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24 august 2025
GEWISS pulse relays and timers for staircases - overview and specifications
Overview of GEWISS impulse relays and staircase timers: purpose, operating principle, advantages and technical features...
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How to properly connect and install single and double sockets: electrician's tips
A step-by-step guide to installing single and double sockets. Covers basic electrical safety, wiring diagrams, common mistakes, and expert tips for safe home installation...
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Gewiss 40CD VOLTA modular flush-mount distribution board — reliability and style for electrical installations
The Gewiss 40CD VOLTA modular flush-mount distribution board meets German quality standards. It features a flame-retardant plastic housing, elegant white metal doors, and a user-friendly design for fast installation. Available in versions from 12 to 60 modules, with the option to add 2 extra modules per DIN rail...
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Residual Current Circuit Breaker with Overcurrent Protection (RCBO): What It Is, How It Works, and How to Install It
An RCBO is a compact device that combines protection against leakage current, overloads, and short circuits. This article explains how it works, the types available, installation steps, and key benefits. A smart solution for full electrical protection...
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Fuses: What They Are, Types, and Their Role in Electrical Network Protection
Fuses are essential for protecting electrical systems from overloads and short circuits. In this article, you’ll discover how a fuse works, which types exist, how to select the right one for household or industrial use, and how to avoid common installation mistakes...
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