Surge Arrester Class I + II (B/C) 12,5kA (10/350)

  • COMBTEC 12,5 kA (10/350), CLASS I + II (LPL III + IV)

Surge Arrester Class I + II (B/C) 12,5kA (10/350)

COMBTEC 12,5 kA (10/350), CLASS I + II (LPL III + IV)

  • The Schrack-Combtec series has been developed to protect against partial direct and indirect discharges. It is intended to provide lightning protection level III and IV (protection zone 0A to 1) according to IEC62305.
  • This series is tested for testclass I and testclass II according to IEC61643-1 with a maximum impulse current (Iimp) of 12,5kA (10/350) per pole and nominal nominal discharge current (In) of 20kA (8/20) per pole. The devices are available for maximum continuous current operating voltage (Uc) of 275Vac and 335Vac.
  • For each path: Class B/C, type of design I/II, type 1/2, EN/IEC-SN 60, part 4, / EN/IEC 61643 approved.

INSTALLATION REQUIREMENTS

  • National regulations for installation must be followed!
  • In Austria: EN/IEC 8001-1, EN/IEC E 8049, EN/IEC 62305 or IEC 60364-5-53 A1.

RANGE OF APPLICATION

Combined lightning arresters/surge arresters designed for indoomr ounting as a means of protecting consumerappliances against lightning and transient surge voltages. Areideally used for construction systems having protection class III and (IV) according to ÖVE/ÖNORM E 8049. Surge arrester operates in all locations. Coupling VV-SG50-VS surge arresters provide a low protection level in a variety of network systems (TT/IT/TN-C/TN-C-S) with the width of an RCCB of only 4 MW (3+1 switching operation 6 MW) without any mains follow currents.

TECHNICAL DATA

  CTNC BC 275
(3+0)
CTNS BC 275
(4+0)
CTT BC 275
(3+1)
Standard IEC61643-1
Max. continuous voltage AC (DC) 275Vac (350Vdc)
Nominal discharge current (nI8/20) per pole 20kA 20kA 20kA (MOV)
50kA (GDT)
Max. discharge current (I max 8/20) per pole 50kA 50kA 50kA (MOV)
100kA (GDT)
Impulse current (Iimp 10/350) per pole 12,5kA 12,5kA 12,5kA (MOV)
50kA (GDT)
Specific energy per pole 39kJ/Ω 39kJ/Ω 39kJ/Ω(MOV)
625kJ/Ω(GDT)
Charge per pole 6,25As 6,25As 6,25As (MOV)
25As (GDT)
Protection level Up <1,4kV (at In)
<1,0kV (at Iimp)
<1,4kV (at In)
<1,0kV (at Iimp)
<1,4kV (at In) (MOV)
<1,0kV (at Iimp) (MOV)
Response time <25ns <25ns <25ns (MOV)
<100ns (GDT)
Follow current - - >100ARMS
Back-up fuse max. 250A gL/gG max. 250A gL/gG max. 250A gL/gG
Short-circuit withstand current 25kA / 50Hz 25kA / 50Hz 25kA / 50Hz
Protection Thermal protection Thermal protection Thermal protection
Terminal screw torque max. 4,5Nm max. 4,5Nm max. 4,5Nm
Temperature range -40°C - +80°C -40°C - +80°C -40°C - +80°C
Terminal cross section 35mm² (solid) / 35mm² (solid) / 35mm² (solid) /
  25mm² (stranded) 25mm² (stranded) 25mm² (stranded)
Degree of protection IP20 IP20 IP20
Housing material Thermoplastic;
ext. degree UL94 V-0
Thermoplastic;
ext. degree UL94 V-0
Thermoplastic;
ext. degree UL94 V-0
Dimensions DIN43880 3TE 4TE 5TE
Art.No. (without remote contact) IS211230 IS211240 IS211210

COMBTEC 12,5 kA (10/350), CLASS I + II (LPL III + IV)

DESCRIPTION

  • LIGHTING PROTECTION LEVEL
  • SPD-CLASS
  • ORDER NO.

Combtec CTNC BC 275

  • LPL III + IV
  • Testclass I + II
  • IS211230

Combtec CTNC BC 275 + H

  • LPL III + IV
  • Testclass I + II
  • IS211231

Combtec CTNS BC 275

  • LPL III + IV
  • Testclass I + II
  • IS211240

Combtec CTNS BC 275 + H

  • LPL III + IV
  • Testclass I + II
  • IS211241

Combtec CTT BC 275

  • LPL III + IV
  • Testclass I + II
  • IS211210

Combtec CTT BC 275 + H

  • LPL III + IV
  • Testclass I + II
  • IS211211

Combtec CTNC BCD 275 + H

  • LPL III + IV
  • Testclass I + II + III
  • IS211431

Combtec CTNS BCD 275 + H

  • LPL III + IV
  • Testclass I + II + III
  • IS211441

Combtec CTT BCD 275 + H

  • LPL III + IV
  • Testclass I + II + III
  • IS211411

CU-Busbar (SPD-FI) TT, TNS

  • IS050019

CU-Busbar (SPD-FI) TNC

  • IS050020

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