Purchasing Guides
Our purchasing guides detail the selection criteria and uses of various electrical products, such as transfer…
Our purchasing guides detail the selection criteria and uses of various electrical products, such as transfer switch, energy meters, time switches and more. Choose the right products to optimise the performance and safety of your installations.
How to install a transfer switch for generator?
A transfer switch is mandatory for safely connecting a standby generator. This guide covers the 5 installation steps: needs assessment, type selection (manual COMO CS or automatic ATyS g M), location, electrical wiring (source 1 = utility, source 2 = generator) and functional testing.
How to Choose a Current Transformer (CT)?
A practical 6-step guide to selecting the right current transformer (CT) for your installation. Transformation ratio, 1 A vs 5 A secondary, VA burden, accuracy class, physical type and motor circuit sizing explained.
How to Wire a Modular Timer Switch on an Electrical Panel ?
How to wire a modular timer switch on an electrical panel in three simple steps. Follow our detailed guide to properly install and configure your modular timer: power supply via a 2A breaker, dry contact wiring, and time slot programming.
All you need to know about surge protectors
Surge protectors shield electrical installations from atmospheric overvoltages (lightning). This article covers the three SPD types (1, 2 and 3), the 50 cm wiring rule, the 30 m rule for extended installations, earthing requirements and NF C 15-100 installation obligations.
Choosing the Right Timer Relay for Your Application: A Comprehensive Guide
Choosing a time delay relay requires evaluating 6 criteria: function type (on-delay, off-delay, interval, cyclic), timing range, voltage, load capacity, mounting, and environment. Complete guide featuring Finder, Phoenix Contact, and Omron ranges.
How to choose an energy meter?
Choosing an energy meter requires evaluating 6 criteria: network type (single/three-phase), current rating (direct or CT), MID certification for billing, Modbus communication, advanced features, and mounting. Complete guide with Socomec, Finder, and Lettel ranges.
Complete Guide to Choose a Modular Time Switch?
A practical 7-criteria guide to choosing the right modular timer switch (time switch). Comparison of analogue, digital and astronomical types, circuit load rating, number of channels, NFC/Bluetooth features, and real-world installation examples for residential, commercial and industrial use.
How to Choose a Disconnect Switch (Switch-Disconnector)?
A practical 5-criteria guide to choosing the right disconnect switch for your installation. Rated voltage, rated current, number of poles, breaking capacity and IP rating. AC, DC and photovoltaic type comparison with Socomec and Telergon ranges.
What is the difference between a disconnect switch and a circuit breaker?
Although often confused, disconnect switches and circuit breakers serve fundamentally different purposes. The disconnect switch isolates a circuit for safe maintenance with visible contact separation. The circuit breaker automatically protects against overloads and short circuits. Learn the differences and when to use both together.