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Surge Protection Devices
 
Surge Protection Device provides protection against electromagnetic impulses from lightning and to the electrical and electronic equipment located on the structures. Transient over-voltages have existed since the creation of electrical networks, the need for protection is nowadays much greater due to advancement in technology making electrical & electronic components more sensitive to electromagnetic disturbances.

Dhruva Technologies offers the most enhanced range of surge protection devices for power, data and communication lines:
Protection of Power Line:
Type 1 SPD
Type II SPD
Type III SPD
Protection of Data and Communication Lines:
Telephone Lines
Data Lines
Computer Lines
Coaxial Lines

 
Type I SPD for Protection of Power Lines
The highest protection against transient over-voltages for power supply lines at the point they enter the building. Dhruva Technologies provides Type 1 surge protection devices that provide protection even against direct lightning strikes. Tested and certified with lightning impulse current, 50kA, 10/350μs wave.

Type 1 Protector according to EN 61643-11
Encapsulated, non-exhausting discharge spark gap
Suitable for TT, TN-C and TN-S systems.
Coordinates with Type II and Type III SPDs
Optimum protection level.
Quick response
Robust connectors, suitable for all type of connection.
Single-pole protection. Withstands direct lightning strike current (10/350µs wave), over 50kA.
Fork connection with fork terminal included for 16mm2 cable.
High energy diverting capability.
Limits supply following currents.
Surge Protection Devices

 
Type II SPD for Protection of Power Lines
Efficient protection against transient overvoltages for electrical supply lines with or without neutral using a metal oxide varistors and gas discharge tubes. It allows protection of three-phase lines type TT, TNS, TNC and IT. Medium protection according to coordinated stages protection.

Tested and certified as Type 2 and 3 according to regulations EN 61643-11 and UL 1449 3rd edition.
Made up of zinc oxide varistors and gas discharge tubes able to withstand very high currents.
Available as modular and integrated circuit SPD.
Short response time.
High Thermal Stability
Their activation causes no interruption in power supply
Small size modular protection.
Thermodynamic control device, mechanical warning and remote alarm
All mode protection
Surge Protection Devices

 
Type III SPD for Protection of Power Lines
Efficient protection against transient over-voltages for TT and TNS electrical supply lines in only one device.

Tested and certified as Type 2 and 3 according to regulations EN 61643-11 and UL 1449 3rd edition
Discharge takes place in an internal encapsulated element, with no external flash.
It remains inactive in normal conditions, without affecting the normal working of the line and without leakage.
Both common and differential protection for the three lines and neutral.
No interruptions in power supply, thus avoiding data loss
Low residual voltage.
Double warning of "no protection" trough a lightning indicator of failure and a green light indicating good operation.
Robust connectors, suitable for all type of connection
Surge Protection Devices

 
Surge Protection Devices for Telephone Lines
Efficient protection for analog and ADSL telephone lines, containing coordinated protection for 2 pair of lines.

Allows the connection of 2 pairs of lines with a very small size (0,75 DIN modules)
Protection for telephone lines and also for the digital and analogical equipment connected to these lines (fax, modem, etc).
Pluggable modules for its easier substitution in case of failure without the need of disconnecting the wiring. When substituting the module the line suffers no interruptions
Earthing implemented through a metallic sheet opposite to the fixing DIN rail.
In normal conditions stays inactive, without affecting the line working and without producing any leakage.
Both common and differential modes of protection.
Fast response time
Connection with screw pressure, which provides better lightning current withstanding capacity than usual telephone connectors.

Surge Protection Devices
AT91 Series – ATFONO (RJ Connectors)
Surge Protection Devices
AT91 Series – ATFONO (DIN Rail Mounting)

 
Surge Protection Devices for Data Lines
Efficient protection for data lines, containing coordinated protection for two pair of lines.

Protection for data lines and the digital or analog equipments connected (computers, PLCs, discharge cells, etc.).
Wide variety of SPDs for different working voltages.
Both common and differential protection recommended for this type of lines.
Allows the connection of two pairs of lines with a very small size (0,75 DIN modules).
Pluggable modules for its easier substitution in case of failure without the need of disconnecting the wiring. When substituting the module the line suffers no interruptions.
In normal conditions stays inactive, without affecting the line working and without producing any leakage.
Low residual voltage in all the working voltages.
Very fast response.
AT92 Series - ATLINE
(Modular protector for data lines for DIN rail)

 
Surge Protection Devices for Computer Networks
SPDs are specially designed to avoid failures in data transfer between equipments inside the same network. They protect the input of the electronic circuits of the network cards against harms due to transient currents.

Is a protector with RJ45 input and output connectors, with a withstanding current up to 2kA for line.
It is available with different voltages and data transmission speed.
It’s designed to protect individually every single equipment connected to the computers network.
Includes cable with connector RJ45 of 50 cm.
 
ATLAN Series – ATLAN UNITARIOS
(Single protector for computer networks)
ATLAN Series – ATLAN C-8
(Protector for 8 computer lines)
ATLAN Series – ATLAN 24/16/8
(Protector for computer network rack)
AT23 Series – ATDB9
(Individual protector for type DB9 data lines)

 
Surge Protection Devices for Coaxial RF Lines
Due to their placement, aerials are one of the most exposed elements to lightning discharges. Even when an external lightning protection system exists, the discharge secondary effects can affect the TV or RF signals.

Coaxial RF Line Surge Protective Devices protect the signal cable deriving the induced and conducted surges to the ground, thus avoiding damages to the communication and TV equipment and to the connected devices (DVD, video, decoders, home cinema sets, etc.)
Efficient protection against transients, through gas discharge tubes with 10kA withstand capability
Optimum coupling with minimal insertion losses
Small attenuation in the signal even for very high frequencies
Short response times.
Discharge takes place in an internal encapsulated element, without external flashes.
Small size
Specific connectors for each application