Thyristor Rating VS Switching Current - 02/11/2020

What is the difference between « Thyristor rating » and « Switching current » ? This question comes up frequently and we are pleased to answer it in this dedicated article. Thyristors are used as the switching components in solid state relays for alternating currents. The ratings of our power components are specified in our […]

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Dual SSR – 22,5mm housing - 29/10/2020

SIB Range – new Dual SSR celduc® relais is featuring our new SIB942360 dual Solid State Relay 22,5mm housing as our Product of the Week. Here are the main features : Voltage is 600 Vpeak = 280 VAC nominal voltage Current is 2x20A (30A caliber power element I²t=487A²s) Dual Zero Cross Solid State Relay especially […]

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REED Switches - 27/10/2020

What is a REED Switch? The REED switch is the sensitive element of the magnetic sensor. It detects the presence of a magnetic field, usually a permanent magnet. It detects without contact the position of the magnet and transmits an electrical on/off or analog signal depending on the model. Basic Principles   A REED switch […]

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What is a back-to-back Thyristor - 19/10/2020

Thyristor : Power element Solid State Relays (SSR) are switching devices made with electronic components. The Thyristor is the power element and is the “heart” of the SSR. All our Solid State relays are fitted with back-to-back thyristors which are also named Silicon Controlled Rectifier, SCR. Celduc’s back-to-back thyristors are using TMS² Technology. Why  TMS² ?  […]

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SOB range – Two-phase SSR - 15/10/2020

What are « Dual » Solid State Relays ? Dual SSR by celduc allows to control two loads with a unique or separated input, in a single package. Many options are available: both vertical and horizontal connections, different input connectors & several output protections. Dual SSR can cover all the market needs! A Dual SSR […]

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