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Surge Protection Device (SPD)
It is a device used to limiting instant surge voltage and discharge surge current, it at least including a non-linear component.
SPD for Power Supply System Series Selection Guide
The installation of SPD at each lightning protection zone, according to the standard of low voltage electrical appearance, make classification of electrical equipment in accordance with the over voltage category, its insulation withstand impulse voltage level can determine the selection of SPD. According to the standard of low voltage electrical appearance, make classification of electrical equipment in accordance with the over voltage category as signal level, loading level, distribution and control level, power supply level. Its insulation withstand impulse voltage level are:1500V,2500V,4000V,6000V. As per to the protected equipment installation position different and the different lightning current of different lightning protection zone, to determine the installation position of SPD for power supply and the break-over capacity.
The installation distance between each level SPD should not more than 10m, the distance between SPD and protected equipment should as short as possible, not more than 10m. If due to limitation of installation position, can't guarantee the installation distance, then need to install decoupling component between each level SPD, make the after class SPD can be protected by the prior class SPD. In the low voltage power supply system, connecting an inductor can achieve the decoupling purpose.
SPD for power supply system specification selection principle
Max. continuous operating voltage: bigger than protected equipment, the system's max. continuous operating voltage.
TT System: Uc 1.55Uo (Uo is low voltage system to null line voltage)
TN System: Uc 1.15Uo
IT System: Uc 1.15Uo(Uo is low voltage system to line voltage)
Voltage Protection Level: less than the insulation withstand impulse voltage of protected equipment
Rated discharge current: determined as per to the lightning situation of the position installed and lightning protection zone.
SP1 Series
Normal Working Conditions
-Altitude not exceed 2000m
-Ambient air temperature:
Normal range: -5 ºC~+40 ºC
Extend range: -40 ºC~+80 ºC
-Relative Humidity: 30% - 90% under indoor temperature condition
- At the place without obviously shaking and shock vibration
- Non-explosion danger medium, non-corrosion gas and dust ( including conductive dust)
Classification
-As per Nominal Discharge Current:
5,10,20,30,40,60KA(8/20 µs)
- As per Maximu
800_080
BT P B80 385 RM
Main Features:
* Small volume, high discharge capacity
* Reliable protection thanks to double control disconnector
* Quick response
* Low voltage protection level and with double terminals connection
* Green window will change when fault occur, also in the same time provide remote alarm terminal
* Core components are from international well known supplier
Application:
This product is designed to protect low voltage devices from surge damage, used in power supply system such as power distribution-room, distribution-cabinet and other important power supply system. Widely used to protect mobile communication station, telecommunication centre, civil aviation, finance, and so on.
Specifications:
Technical data
Rated voltage
(max. continuous voltage) Uc 385V
Nominal discharge
current(8/20) In 35kA
Max. discharge current Imax 80kA
Voltage protection level
at 20kA Up í_1.8kV
Response time tA í_25ns
Operating
temperature range -40íµí¡+80íµ
Cross-sectional area 1.5mm2~25mm2(solid)/35mm2(flexible)
Mounting on 35mm DIN rail
Test standards GB 18802.1-2002; IEC 61643-1:1998-02
Applications:
Designed for monitor device not to be spoiled by lightning over-voltage, induced over-voltage and static discharge.
Video camera
E1, pdh, sdh, spdh
Digital hard disk video cassette recorder
Industrial control
Features:
Multi. Protection circuits, gas-tube+ tvs technology
Dual protection in common module and different module
Tvs array technology, low capacitance
Multi-strike capability
Specifications:
Type d12bf d12bf-4d12bf-16
Electrical specifications
Impedance75++
Max operating voltage12v
Nominal discharge current (8/20++s)3ka
Max. Discharge current (8/20++s)5ka
Protection level (3ka 8/20++s)
Line to line40v
Line to pe160v
Adapt transmission rate100mbps
Insertion lossf 0.5db
Response time f 5ns
Mechanical specifications
Connectorbnc female to malebnc female to female
Number of protection ports1416
Diamension (mm)82.7*25*25130*73*25 481*84*47
Working environments
Operating temperature minimum-40
Operating temperature maximum85
Operating humidity95%
Applications:
Designed for monitor device not to be spoiled by lightning over-voltage, induced over-voltage and static discharge.
Video camera
E1, pdh, sdh, spdh
Digital hard disk video cassette recorder
Industrial control
Features:
Multi. Protection circuits, gas-tube+ tvs technology
Dual protection in common module and different module
Tvs array technology, low capacitance
Multi-strike capability
Specifications:
TypeD12bfD12bf-4D12bf-16
Electrical specifications
Impedance75+
Max operating voltage12v
Nominal discharge current (8/20s)3ka
Max. Discharge current (8/20s)5ka
Protection level (3ka 8/20s)Line to line40v
Line to pe160v
Adapt transmission rate100mbps
Insertion loss_0.5db
Response time _5ns
Mechanical specifications
ConnectorBnc female to maleBnc female to female
Number of protection ports1416
Specification:
Square : 22mm
Voltage : 130v ac (rms)
IN : 7.5ka
Imax : 15ka
Application : specially used for power strip or socket
Features:
With built-in thermal cutoff (thermally protected)
Two types : square and round type
Used for power strip
Different size : 8 to 34mm
Peak current (8/20) : 3 to 40ka (maximum)
Certificates : 1449 3rd, T & UUML.
Applications:
Designed for Ethernet device not to be spoiled by lightning over-voltage, induced over-voltage and static discharge.
CAT6, CAT5e and CAT5 compatible
10/100/1000 Base-T Gigabit Ethernet protection
LAN, FDDI, CDDI, ATM
PDH, SDH, SPDH
Industrial control
Features:
Multi. Protection circuits, Gas-Tube+ TVS technology
Dual protection in Common module and different module
TVS array technology, low capacitance
Multi-Strike Capability
Specifications:
TypeD05J4D05J8HD12Y4D36Y2
Electrical Specifications
Max operating voltage5V5V12V36V
Nominal discharge current (8/20»s)3kA2kA3kA3kA
Max. discharge Current (8/20»s)5kA3kA5kA5kA
Protection level (3kA 8/20»s)Line to line25V25V40V60V
Line to PE160V
Adapt transmission rate100Mbps1000Mbps10Mbps10Mbps
Insertion Loss_0.5dB
Response time _5ns
Mechanical Specifications
ConnectorRJ45
Protection Lines 1,2 & 3,61,2,3,4,5,6,7,84 lines2 lines
Form Size(mm)83 * 25 * 25 90 * 14 * 63
Working environments
Operating Temperature Minimum-40
Operating Temperature Maximum85
Operating Humidity95%
