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Product Selection DDP-25-T
SFD1-25

- Specific Fuses (SPD Fusing Disconnectors) for short circuit protection of Type 1 AC surge protectors - Surge current withstand: 25 kA @ 10/350µs - 10 units per packaging - Very compact - Fusion signaling feature - Remote signaling though fuse holder
SFD1-25
BSFD22-10S & SFD1-25 1 pole BSFD22-11S* & SFD1-25 single phase (L+N) BSFD22-20S & SFD1-25 2-phase BSFD22-30S & SFD1-25 3-phase BSFD22-31S* & SFD1-25 3-phase+N BSFD22-40S & SFD1-25 4-phase *The Neutral position is equipped with a non-fusing element The fuse holders are all equipped with a remote signaling
B180-T

B180-T
S180-T
B280-T

B280-T
S280-T
B480-T

B480-T
S480-T
SFD1-25S-11

- Specific Fuses (SPD Fusing Disconnectors) for short circuit protection of AC SPD - For Type 1 SPD - Surge current withstand: 25 kA (@10/350µs) - Very compact - Included fuses - Remote signaling and status signaling
SFD1-25
SFD1-25 Fusing Disconnectors for SPD Type 1 AC Iimp 25 kA
SFD1-25
SFD1-25S-20

- Specific Fuses (SPD Fusing Disconnectors) for short circuit protection of AC SPD - For Type 1 SPD - Surge current withstand: 25 kA (@10/350µs) - Very compact - Included fuses - Remote signaling and status signaling
SFD1-25
SFD1-25 Fusing Disconnectors for SPD Type 1 AC Iimp 25 kA
SFD1-25
SFD1-25S-30

- Specific Fuses (SPD Fusing Disconnectors) for short circuit protection of AC SPD - For Type 1 SPD - Surge current withstand: 25 kA (@10/350µs) - Very compact - Included fuses - Remote signaling and status signaling
SFD1-25
SFD1-25 Fusing Disconnectors for SPD Type 1 AC Iimp 25 kA
SFD1-25
SFD1-25S-40

- Specific Fuses (SPD Fusing Disconnectors) for short circuit protection of AC SPD - For Type 1 SPD - Surge current withstand: 25 kA (@10/350µs) - Very compact - Included fuses - Remote signaling and status signaling
SFD1-25
SFD1-25 Fusing Disconnectors for SPD Type 1 AC Iimp 25 kA
SFD1-25
SFD1-25S-31

- Specific Fuses (SPD Fusing Disconnectors) for short circuit protection of AC SPD - For Type 1 SPD - Surge current withstand: 25 kA (@10/350µs) - Very compact - Included fuses - Remote signaling and status signaling
SFD1-25
SFD1-25 Fusing Disconnectors for SPD Type 1 AC Iimp 25 kA
SFD1-25
KP1-T

KP1-T
KP10-T

KP10-T
PRC900-T/FF

PRC900-T/FF
PRC1800-T/FF

PRC1800-T/FF
PRC900-T/MF

PRC900-T/MF
PRC1800-T/MF

PRC1800-T/MF
DDC50-21Y-800

By screw terminals: 2.5-25 mm² (35 mm² rigid)
V: High-energy varistor Ft: Thermal fuse t°: Thermal disconnection system MI: Disconnection indicator
DDC50-21Y-1500

By screw terminals: 2.5-25 mm² (35 mm² rigid)
V: High-energy varistor Ft: Thermal fuse t°: Thermal disconnection system MI: Disconnection indicator
DDC50S-21Y-800

By screw terminals: 2.5-25 mm² (35 mm² rigid)
V: High-energy varistor Ft: Thermal fuse t°: Thermal disconnection system MI: Disconnection indicator
Range Selection DDP-25-T
Range SFD1-25 - SFD1-25S-11

Pages DDP-25-T
International Standards
The phenomena were first characterized and a series of standardized waves created (1.2/50µs voltage wave and 8/20µs and 10/350µs current waveforms), then a number of standards defining surge arrester performance were issued, among them : Surge Protectors for Low-Voltage installations: - NF EN 61643-11 (France) - VDE 0675-6-11 (Germany) - EN 61643-11 (Europe) - UL1449 (USA) - IEC 61643-11 (International) Surge Protectors for Telecom equipment: - IEC 61643-21 (International) - ITU-T recommendations K11, K12, K17, K20, K21, K36 (International) - UL 497 A/B (USA)
Citel, CTC Technology
This game-changing technology brings a number of benefits for you: - Space saving due to more compact design - Short conductor lengths between MOV and cut-off device - Fast triggering of the cut-off by cumulative heat impact of all MOVs on one heat point - Additional insulation barrier for even safer pole separation - All-pole disconnection in case of tripping - No risk of varistor short circuits - Much lower temperature of the SPD envelope during disconnection providing more safety - For the user or side by side electrical devices C T C® "CENTRAL“ - The central position of the disconnection device "THERMAL“ – More efficient use of Joule-heat for more safety "CONTROL“ – All-pole disconnection with dual mechanism | --- | |
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GDT overview
Nevertheless, it is prudent to plan for the worst case scenario and, for this reason, CITEL has designed a model SPT203 allow to test statut of GDTs and surge protector STANDARDS CITEL GDT comply with the specifications of main telecom operators and with the ITU-T K12 international recommendation and standards IEC 61643-311 They are also compliant with the RoHS directive
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