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Surge Arrester – Type 1+Type 2

FLP25-275/1+1

Integral housing combined lightning current and surge arrester for protecting TT and TN systems (“1+1” circuit) against surges.

  • Prewired spark-gap-based type 1 and type 2 combined lightning current and surge arrester
  • Maximum system availability due to RADAX Flow follow current limitation
  • Capable of protecting terminal equipment
surge-protective-device-flp25-275-11
dimensions-flp25-275-11
Dimensions
basic-circuit-diagram-flp25-275-11
Basic circuit diagram

Technical data

TypeFLP25-275/1+1
SPD according to EN 61643-11 / IEC 61643-11type 1 + type 2 / class I + II
Nominal a.c. voltage Un275 V AC (48/62 Hz)
Max. continuous operating a.c. voltage [L-N] Uc320 V AC (48/62 Hz)
Max. continuous operating a.c. voltage [N-PE] Uc255 V AC (48/62 Hz)
Nominal discharge current (8/20μs) In60 kA
Maximum discharge current (8/20μs) Imax100 kA
Lightning impulse current (10/350μs) [L/N] Iimp25 kA
Lightning impulse current (10/350μs) [N-PE] Iimp100 kA
Voltage Protection level [L-N] UP2,0 kV
Voltage Protection level [N-PE] UP2,5 kV
Response time tA100 ns
Follow current extinguishing capability Ifi50 kArms
Max. backup fuse (L) up to IK = 50 kArms315 A gL/gG
Max. backup fuse (L-L’)125 A gL/gG
Temporary overvoltage (TOV) [L-N] (UT) – Characteristic440 V / 120 min. – withstand
Temporary overvoltage (TOV) [N-PE] (UT) – Characteristic1200 V / 200 ms. – withstand
Range of operating temperatures [parallel] / [series] (TU)-40/+80°C
Operating state / fault indication
Number of ports1
Cross-sectional area (L1, L1′, L2, L2′, L3, L3′, N, N’, PE) (min.)10 mm2 solid /flexible
Cross-sectional area (L1, L2, L3, N, PE) (max.)50 mm2 stranded / 35 mm2 flexible
Cross-sectional area (L1′, L2′, L3′, N’, PE) (max.)35 mm2 stranded / 25 mm2 flexible
For mounting on35 mm DIN rail acc. to EN 60715
Enclosure materialthermoplastic
Place of installationindoor installation
Degree of protectionIP20
Capacity4 module(s), DIN 43880
Approvals
Type of remote signalling contact
a.c switch capacity
d.c switch capacity

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Other products in this category 


FLP25-275/1

Un = 275 Vac

Iimp (10/350μs) = 25 kA

1P

surge-arrester-flp25-275-2

FLP25-275/2

Un = 275 Vac

Iimp (10/350μs) = 25 kA

2P, single-phase, for TN systems

surge-arrester-flp25-275-3

FLP25-275/3

Un = 275 Vac

Iimp (10/350μs) = 25 kA

3P, three-phase, for TN-C systems

surge-arrester-flp25-275-31

FLP25-275/3+1

Un = 275 Vac

Iimp (10/350μs) = 25 kA

3+NPE, three-phase, for TT and TN-S systems

surge-arrester-flp25-275-4

FLP25-275/4

Un = 275 Vac

Iimp (10/350μs) = 25 kA

4P, three-phase, for TN-S systems