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Surge Arrester – Type 1+Type 2

FLP12,5-275/4

FLP12,5-275/4S

Modular surge arrester for use in TN-S systems; with floating remote signalling contact.

  • Prewired complete unit consisting of a base part and plug-in protection modules
  • High discharge capacity due to heavyduty zinc oxide varistors / spark gaps
  • High reliability due to “Thermo Dynamic Control” SPD monitoring device
Surge-protection-device-SPDs-FLP12,5-275-4S-OBO
Dimensions-FLP12,5-275-4S-OBO
Dimensions
Basic-circuit-diagram-FLP12,5-275-4S-OBO
Basic circuit diagram

Technical data

TypeFLP12,5-275/4FLP12,5-275/4S
SPD according to EN 61643-11 / IEC 61643-11type 1 + type 2 / class I + IItype 1 + type 2 / class I + II
Nominal a.c. voltage Un275 V AC (48/62 Hz)275 V AC (48/62 Hz)
Max. continuous operating a.c. voltage Uc320 V AC (48/62 Hz)320 V AC (48/62 Hz)
Nominal discharge current (8/20μs) In30 kA30 kA
Maximum discharge current (8/20μs) Imax60 kA60 kA
Lightning impulse current (10/350μs) Iimp12,5 kA12,5 kA
Voltage Protection level UP1,8 kV1,8 kV
Response time tA25 ns25 ns
Max. mains-side over-current protection160 A gL/gG160 A gL/gG
Short-circuit current rating ISCCR50 kArms50 kArms
Temporary overvoltage (TOV) (UT) – Characteristic335 V / 5 sec. – withstand335 V / 5 sec. – withstand
Temporary overvoltage (TOV) (UT) – Characteristic440 V / 120 min. – safe failure440 V / 120 min. – safe failure
Range of operating temperatures (TU)-40/+80°C-40/+80°C
Operating state / fault indicationgreen / redgreen / red
Number of ports11
Cross-sectional area (min.)1.5 mm2 solid /flexible1.5 mm2 solid /flexible
Cross-sectional area (max.)35 mm2 stranded / 25 mm2 flexible35 mm2 stranded / 25 mm2 flexible
For mounting on35 mm DIN rail acc. to EN 6071535 mm DIN rail acc. to EN 60715
Enclosure materialthermoplasticthermoplastic
Place of installationindoor installationindoor installation
Degree of protectionIP 20IP 20
Capacity4 module(s), DIN 438804 module(s), DIN 43880
Approvals
Type of remote signalling contactchangeover contact
a.c. switching capacity250 V / 0.5 A
d.c. switching capacity250 V / 0.1 A; 125 V / 0.2 A; 75 V / 0.5 A
Cross-sectional area for remote signalling terminalsmax. 1.5 mm2 solid / flexible

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Surge-arrester-FLP12,5-275-1-OBO

FLP12.5-275/1 (OBO)

Un = 275 Vac

Iimp (10/350μs) = 12,5 kA

1P

Surge-arrester-FLP12,5-275-1S+1-OBO

FLP12.5-275/1S+1 (OBO)

Un = 275 Vac

Iimp (10/350μs) = 12,5 kA

1+NPE, single-phase, for TT and TN systems

Surge-arrester-FLP12,5-275-2S-OBO

FLP12.5-275/2S (OBO)

Un = 275 Vac

Iimp (10/350μs) = 12,5 kA

2P, single-phase, for TN systems

Surge-arrester-FLP12,5-275-2S+1-OBO

FLP12.5-275/2S+1 (OBO)

Un = 275 Vac

Iimp (10/350μs) = 12,5 kA

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

Surge-arrester-FLP12,5-275-3S-OBO

FLP12.5-275/3S (OBO)

Un = 275 Vac

Iimp (10/350μs) = 12,5 kA

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

Surge-arrester-FLP12,5-275-3S+1-OBO

FLP12.5-275/3S+1 (OBO)

Un = 275 Vac

Iimp (10/350μs) = 12,5 kA

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