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QDF-E
Line Protectors
A wide range of protection products are offered which are an important part of the QDF product line. Solid state as well as gas tube overvoltage protection is available, and overcurrent protection is also provided in 5-point protectors
3-Point Protection
The QDF-3CGS-260 and QDF-3CGS-230 contain a heavy-duty 3-electrode gas discharge tube. They are used when many large lightning induced voltages are expected on the telecom pairs. The QDF-3CHY-200 and the QDF-3CHY-260 incorporate an overvoltage surge protection device utilising both gas-tube and semi-conductor technologies resulting in a package which delivers the high current-handling capability of a gas-discharge tube with the speed of a silicon device.
5-Point Protection
The QDF-5CGS-260R(N) and QDF-5CGS-230CN contain a heavy duty 3-electrode gas discharge tube. The QDF-5CSS-220RN is a thyristor-based solid-state protector designed for use in applications that demand the extremely fast operation and low operating voltage that only solid-state protectors can provide. The QDF-5CHY-200RN and QDF-5CHY-260R incorporate an overvoltage surge protection device utilising both gas-tube and semi-conductor technologies, combining to deliver the high current handling capability of a gas-discharge tube with the speed of a silicon device.
F D Q
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QDF-E
Overcurrent protection has been added to all of these 5-point protectors in the form of 2 PTCRs*. The overcurrent devices are fast-acting, have low room-temperature resistance and are completely self-restoring when the fault current source is removed from the line. All QDF protectors are equipped with a heat-operated fail-safe (shorting) mechanism. Sustained operation of the protector, because of contact with or induction from power lines, will cause operation of the fail-safe device. The fault current may continue to flow, but the heat-generating protector has been bypassed by the fail-safe shunt. All of the QDF protectors fit into the QDF-E 10-pair magazine. They have an intermediate position to which they can be temporararily withdrawn to remove protection from the equipment side to allow testing of the equipment. This is a partial withdrawal which maintains contact on the cable side. Testing can then be performed using the 4-wire retractable test/patch cord inserted into the top of the protector. Non-intrusive testing may be carried out by using the same cord inserted into the top of the protector while it is in the fully inserted position.
3-Point Protectors Specifications
Electrical Characteristics Overvoltage QDF-3CGS-260 DC breakdown 210 - 310 V QDF-3CGS-230 QDF-3CHY-260 QDF-3CHY-200 140 - 250 V
184 - 276 V 210 - 350 V Measured @ 100 V/sec. 100 M min. measured at 175 Vdc
Insulation resistance* *
1000 M min. measured at 100 Vdc 1.5 pF
100 M min. measured at 120 Vdc 200 pF
Capacitance (line to earth)
Measured at 1 MHz Impulse breakdown 600 V max. 450 V max. 350 V max. @ ramp speed of 1 kV/sec (ITU K12 Recommendation) 250 V max.
Life AC discharge Impulse discharge current 5 A RMS for 1 second, 5 applications each line side, @ 3-minute intervals, 50 Hz 5 kA measured at 8/20 sec, 5 shots each polarity (IEC 1000-4-5)
Mechanical Characteristics Endurance Repeated insertion/withdrawals: 200 cycles from fully inserted to intermediate position. Maximum change in protector/block contact resistance is 50 m
Materials Housing Gas tube Glass-filled polyamide. Self-extinguishing, UL-94 V0 rated. Aluminium oxide ceramic/metal construction. Inert gas filled, contains no radiosotopes. Glass-fibre/epoxy blend, self-extinguishing, UL-94 V0 rated.
Printed circuit board
* **
Positive Temperature Coefficient Resistor Other values are possible with a different component selection
QDF-E
5-Point Protectors - Gas-Tube & Hybrid Versions Specifications
5CGS-260R(N) Overvoltage component Overcurrent component GDT PTCR 5CGS-230CN GDT PTCR 5CHY-200CN Hybrid PTCR 5CHY-260 RN Hybrid PTCR
Electrical Characteristics Overvoltage DC breakdown 210 - 310 V 184 - 276 V 140 - 240 V measured @ 100 V/sec. 10 G min. (measured @ 100 Vdc) 100 M min. (measured @ 120 Vdc) 210 - 250 V
Insulation resistance
1000 M min. (measured @ 100 Vdc)
100 M min. (measured @ 175 Vdc) 200 pF
Capacitance (line to earth)
1.5 pF
1.5 pF 200 pF measured @ 1 MHz 450 V max. 250 V max. @ ramp speed of 1 kV/sec.(ITU K12 Recommendation)
Impulse breakdown
600 V max.
350 V max.
Overcurrent PTCR room-temperature resistance Hold current Maximum operating voltage Maximum switching current 6 - 10 4-8 6 - 10 6 - 10
120 A RMS 250 V RMS 3.0 A RMS
Life AC discharge Impulse discharge current 5 A RMS for 1 second, 5 applications each line side, @ 3-minute intervals, 50 Hz 5 kA measured at 8/20 sec, 5 shots each polarity (IEC 1000-4-5)
Mechanical Characteristics Endurance Repeated insertion/withdrawals: 200 cycles from fully inserted to intermediate position. Maximum change in protector/block contact resistance is 50 m.
Materials Housing Gas tube Glass-filled polyamide. Self-extinguishing, UL-94 V0 rated. Aluminium oxide ceramic/metal construction. Inert gas filled, contains no radiosotopes. Conductive polymer Glass fibre/epoxy blend, self-extinguishing, UL-94 V0 rated.
PTCR Printed circuit board
QDF-E
5-Point Protectors - Solid State Version Specifications
5CSS-220RN Overvoltage component Overcurrent component Electrical Characteristics Overvoltage DC breakdown 215 - 265 V measured @ 100 V/sec. 200 M minimum measured @ 200 Vdc < 200 pF measured @ 1 MHz 350 V max. @ ramp speed of 1 kV/sec (ITU K12 recommendation) Dual bi-directional resistor PTCR
Insulation resistance* Capacitance (line to earth)
Impulse breakdown
Overcurrent PTCR room-temperature resistance Hold current Maximum operating voltage Maximum switching current Switching time @ max. switching current Life Impulse discharge current 10/1000 sec. 100 A 10/700 1.5 kV 125A 8/20 sec. 250 A 6 - 10 120 A RMS 250 V RMS 3.0 A RMS < 200 msec.
Mechanical Characteristics Endurance Repeated insertion/withdrawals: 200 cycles from fully inserted to intermediate position. Maximum change in protector/block contact resistance is 50 m.
Materials Housing Gas tube Glass-filled polyamide. Self-extinguishing, UL-94 V0 rated. Aluminium oxide ceramic/metal construction. Inert gas filled, contains no radiosotopes. Conductive polymer Glass fibre/epoxy blend, self-extinguishing, UL-94 V0 rated.
PTCR Printed circuit board
Safety
The protectors fail in short circuit mode on heating from sustained discharge. They will conduct 20 A RMS (10 A RMS each-line side) for 15 minutes with no flames, sparks or molten plastic.
*
Other values are possible with a different component selection
QDF-E
Part Name Key
QDF - 3 C XX - XXX
QDF - 5 C XX - XXX - X X
GS = gas tube + 2 PTCRs SS = solid state + 2 PTCRs HY = hybrid Overvoltage rating
HY = hybrid GS = gas tube Gas tube voltage rating
R = PTCR C = coated N = narrow S = short
Ordering Information
Description 3-point protector, 230 V gas tube, grey 3-point protector, 260 V gas tube, grey 3-point protector, 200 V hybrid, green 3-point protector, 260 V hybrid, green 5-point protection, 260 V gas discharge tube plus 2 PTCRs. Colour: grey Narrow version 5-point protection, 230 V gas discharge tube plus 2 PTCRs. Colour: grey 5-point protection, solid state, 220 V plus 2 PTCRs. Colour: blue 5-point 200 V hybrid protector with 2 PTCRs. Colour: green 5-point 260 V hybrid protector with 2 PTCRs. Colour: green Product Name QDF-3CGS-230 QDF-3CGS-260 QDF-3CHY-200 QDF-3CHY-260 QDF-5CGS-260R QDF-5CGS-260RN QDF-5CGS-230CN QDF-5CSS-220RN QDF-5CHY-200RN QDF-5CHY-260RN PCN Number 323726-000 669104-000 493099-000 712614-000 809666-000 861293-000 133454-000 038914-000 577955-000 840870-000
3-Point Protector
5-Point Protector Gas-tube & hybrid version
5-Point Protector Solid State version
QDF-E
Dimensions
Values in mm 3-Point Protectors QDF-5XXX-XXXXN (Narrow Versions)
10
15.4
55.7
35.2
16.7
26.3 RIGHT COVER LEFT COVER 59.4 10
QDF-5CGS-260R/QDF-5CSS-220R
8.8
22.7
35.2
21.1
RIGHT COVER LEFT COVER
10
Tyco and QDF are trademarks.
The information given herein, including drawings, illustrations and schematics which are intended for illustration purposes only, is believed to be reliable. However, Tyco Electronics makes no warranties as to its accuracy or completeness and disclaims any liability in connection with its use. Tyco Electronics' obligations shall only be as set forth in Tyco Electronics' Standard Terms and Conditions of Sale for this product and in no case will Tyco Electronics be liable for any incidental, indirect or consequential damages arising out of the sale, resale, use or misuse of the product. Users of Tyco Electronics products should make their own evaluation to determine the suitability of each such product for the specific application.
Mondragon Telecommunications Tyco Electronics Raychem NV
Poligono industrial Mediterraneo C/. la Fila, parcela 1 46550 Albuixech-Valencia, Espana Tel.: 34-96-141 70 72 Fax: 34-96-141 74 15 Telecom Outside Plant Diestsesteenweg 692 3010 Kessel-Lo, Belgium Tel.: 32-16 351 011 Fax: 32-16 351 697 www.tycoelectronics.com
Tyco Electronics Corporation
8000 Purfoy, Rd. Fuquay-Varina, NC 27526, USA Tel.: 1-919-557 8600 Fax: 1-919-557 8404
TC 620/M/DS/2 12/99

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