SPD, SPD Exporter, Wholesaler in India

We at Samtulas Powertech Company, are one of the principal manufacturer and supplier of a host of electrical and electronic items such as MCBs, MCCBs, Digital meters, relay cards, cable trays and other associated products. We are a prominent supplier of resolute surge protection devices and keep our customers satisfied with our services. As experts in electronic equipment, we recognize the critical role of power quality in sustaining energy systems. Consequently, our commitment extends beyond offering best quality products to encompass delivering holistic power quality solutions to our customers. Be it voltage fluctuations or frequency variations , we tailor solutions to optimize energy efficiency of a particular system and guarantee the enhancement of productivity of our customers.

A surge protection device (SPD) is an electrical device designed to protect electronic equipment and appliances from voltage spikes or surges. These voltage surges can occur due to lightning strikes, power grid fluctuations or switching operations within the electrical system.

The primary function of this tool is to divert excess voltage away from sensitive equipment, preventing damage or disruption caused by power surges.

These type of equipment work by diverting excess voltage to the ground, away from connected equipment. They typically use metal oxide varistors (MOVs) or gas discharge tubes (GDTs) to absorb and dissipate the excess energy. This helps to limit the voltage reaching the protected equipment to a safe level. Different types of such mechanism are available including plug-in surge protectors, whole-house surge protectors and surge protector power strips. Plug-in surge protectors are commonly used for individual electronic devices while whole-house surge protectors are installed at the main electrical panel to protect the entire electrical system.

These devices have a voltage protection level which indicates the maximum voltage they can handle before diverting the excess energy. It is important to choose these types with an appropriate voltage protection level based on the specific application and the potential voltage surges in the area.

The clamping voltage of such equipment refers to the voltage level at which it starts diverting excess energy. Lower clamping voltages provide better protection, as they divert surges at lower voltage levels, reducing the risk of damage to connected equipment.


These tools have a response time which indicates how quickly they can react to a voltage surge. Faster response times are desirable, as they can quickly divert the excess energy before it reaches the connected equipment.

Surge protection devices are typically installed in-line with the electrical system or connected directly to individual devices. Proper guidelines are issued for the use of this device from the manufacturer which needs to be followed with utmost care. Routine examinations are recommended to ensure that these devices are functioning correctly. These devices are essential for safeguarding sensitive electronic equipment such as computers, televisions, home appliances and industrial machinery from voltage surges. They help to extend the lifespan of equipment, prevent data loss and reduce the risk of fire or electrical damage.

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