Entes SPD-D User manual
Single SPD is enough for all devices inside a terminal.
SPD should be assembled in a close location where the mains connection of the terminal is established.
These connections should be done by the possible shortest cables and straight lines.
A cable lug should be used for terminal connections.
The cable width should be at least 6 mm2.
Neutral and ground lines must be connected.
Short-circuit current of the fuse before SPD must be minimum 6kA.
Inputs:
L1, L2, L3 : Terminals where phase connections will be established.
N : Terminal where neutral connection will be established.
E : Terminal where ground connection will be established.
Troubleshooting:
If, the device blows a fuse, it means its varistors are short-circuited. The device must be removed and
replaced with a new one, immediately. The system should be started without any protection.
A7127/Rev.1
SPD-D / SPD-S
Surge Protecton
Devce
User Manual
www.entes.com.tr
Smart way to energy quality
Auxlary
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Front/Side/Upper Panel:
Assembly:
Screw the device on the terminal by using the holes in corner. You can
mount the device horizontally or vertically in the terminal in accordance
with the input side of cables. If, you mount it reverse, you can turn the front
cover 180 degrees as cover texts are in correct position.
Electrical Connection:
Disassembly the front cover by removing 4 screws on the front for
establishing SPD connections. Connect the cables you pass through from
the holes tightly into the upper connector of the device. Use a round-end
terminal log for connecting cables. After, completing connections
reassembly the cover.
Warnings
· Please, read this manual carefully before starting-up and operating the SPD.
· Start-up, maintenance and operation of the device must be done by authorized persons.
· Never use this device other than its real purpose.
· Clean your device only by dry cloth. Water and solvents might damage it.
· Before start-up, make sure all terminal connections are correct.
· The device must be used with a auxiliary starter fuse and an alarm element such as a lamp or siren.
Guarantee Conditions
Your device is guaranteed for 2 years against manufacture defects.
Contact your dealer/supplier for any technical service of your device.
Manufacturer firm cannot be held liable in anyway for the circumstances which may arise if the
instructions of this manual are not followed.
Places of Use and Operation:
SPD Series surge voltage protection device prevents any damage on sensitive devices in environments
where such devices are threatened by high-energy surge voltage by taking surges upon itself.
By this way, the maintenance and repair costs of important devices in the system decrease while the
service availability is guaranteed.
While, SPD-D type device provides protection for the surge voltages between phase-neutral,
neutral-earth and phase-phase, SPD-S type provides protection for phase-neutral and neutral-earth.
For sustainability of protection, the device must be connected to the system through a separate fuse.
The fuse should have an auxiliary starter in order to recognize any blow and this auxiliary starter should
be connected to an visual or audible alarm system. Otherwise, the concerned personnel might not
recognize the situation, as the system will continue its normal operation if the SPD fails and fuse blows.
After this point, the system is vulnerable against surge voltages.
When, the fuse connected to the SPD blows, it means that one of the varistors in SPD is short-circuited
due to incoming surge voltages. In this case, the SPD device should be replaced with a new one.
Technical Specifications:
Uc (SPD-D) : 440 V~ (%+10) (Phase-Phase) 45 – 65 Hz
Uc (SPD-S) : 690 V~ (%+10) (Phase-Phase) 45 – 65 Hz
Imax : 40 kA
In : 20 kA
Up : 1.3 kV
Type : T2
2
Cable Section : 6mm
Protection Class : IP 20
Operating Temperature : -10….+55oC
Storage Temperature : -10….+75oC
Humidity : 95%
Dimensions : 171mm x 121mm x 80mm
Weight : 746g(SPD-D)
634g(SPD-S)
No. of Boxes : 1
Grd
Fuse
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Devce To Be
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