Protecting SSRs against short circuit and overload-current - 12/07/2021

Short-circuit protections According to the European Low Voltage Directive 2014/35/EU (Annex I, article 3, point c), you need to protect your equipment against hazards which may be caused by external influences on the electrical equipment. “Technical measures shall be laid down in accordance with point 1 ( especially point (c) the electrical equipment shall be […]

Want to know more?

cURus : UL certification mark - 07/06/2021

What is the cURus Approval ? The solid state relays and contactors made by celduc® relais are manufactured in compliance with cURus standard. Today we will give you more clarification about cURus approval. The cURus mark indicates that our products meet Canadian and U.S. safety standards. cURus is an approval from the UL, also named […]

Want to know more?

Heat Sink Selection - 30/03/2021

How to choose a proper Heat Sink ? Heat sinks are an important element in circuit design because they provide an efficient path for heat to be transferred into the ambient air and away from electronic devices (Solid State Relays). For any electronics design, “Thermal Management” is the key element, which decides the optimal performance and […]

Want to know more?

Magnetic Sensors: How to make the right choice? - 18/03/2021

Magnetic Sensors: Selection criteria The industrial sector uses numerous sensors. Many types of magnetic sensors are available. But how to make a proper selection ? Today we will guide you on choosing the right sensors for your needs. To choose a sensor, it is necessary to define the main characteristics necessary for the application. Here […]

Want to know more?

Top Tips for making a good control of transformer primary - 17/11/2020

Are high inrush currents on startup causing damages in the transformer primary circuit ? Switching ON the primary of an AC transformer can often generate high inrush currents. Applying electric power to the primary of a transformer can lead to more or less big troubles, especially if this operation is intended to be very frequent. […]

Want to know more?