CT-T1+2+3/3+1-350-FM

Article Nr. : 960401

Technical Data

Operating Manual

Specification Texts

CAD Model
960401_CT-T1+2+3_3+1-350-FM_v02.jpg
They provide extremely high discharge capacity with at the same time very low protection levels and they also do not need any damageable internal or external electronic trigger. Combined surge arrester with rare-gas-filled spark gap and very low protection level < 1.0 kV for the use in three-phase TT and TN-S systems.
  • Combined Arresters Class I+II+III (T1+T2+T3)
  • Applicable at the boundaries LPZ 0A - 2
  • Test standard: IEC 61643-11 / EN 61643-11
  • Vibration test standard: DIN EN 60068-2-6, IEC 60068-2-6
  • Shock test standard: DIN EN 60068-2-27, IEC 60068-2-27
  • Mounting on 35 mm DIN rail (EN 60715)
  • Enclosure material: thermoplastic with the colours yellow and black
  • No leakage currents, thus, allowing installation upstream of power meters
  • Optical status indication (red pin appears)
  • Single modules can be replaced easily
  • Remote changeover contact (FM)
  • EAC certification
IEC category Type 1 + 2 + 3 / class I+II+III
Nominal voltage ACUN 230/400 V~
Max. continuous operating voltage AC (50/60 Hz) Uc 350 V~
Lightning impulse current (10/350 µs) totalItotal 100 kA
Lightning impulse current (10/350 µs) L-N/N-PE/L-PENIimp 25 / 100 / - kA
Nominal discharge current (8/20 µs) L-N/N-PE/L-PENIn 25 / 100 / - kA
Protection levelUp ≤ 1,0 kV
Follow-on current extinguishing capability AC L-N (260 V AC) Ifi 4 kAeff
Follow-on current extinguishing capability AC N-PEIfi 100 Aeff
Short-circuit withstand capability at max. back-up fuseISCCR 50 kAeff
Additional Information
Max. acceptable backup fuse (branch wiring) 250 A gG
Max. acceptable backup fuse (V-type through wiring) 125 A gG
Operating temperature rangeTU -40 - +80 °C
Min. conductor cross section at terminals 10 mm² solid/flexible
Max. conductor cross section 50 mm² stranded/35 mm² flexible
Recommended conductor cross section 25 mm²
Max. connection torque for terminals 4,0 Nm
Power supply system 3 phase TNS and TT systems
Composed of: number of moduls 3x 96 04 25 + 1x 96 02 38
Degree of protection (IEC EN 60529) IP 20
Inflammability class according to UL 94 V0
Installation width 147,2 mm
Max. operating voltage remote contact FM 250 V AC/125 V DC
Max. operating current remote contact FM 1 A AC/200 mA DC
Max. conductor cross section FM 1,5 mm²
Max. locking torque FM terminals 0,25 Nm
Mounting on 35 mm DIN rail (EN 60715)

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