• FIR 25/385 (1+1)

    ///FIR 25/385 (1+1)
    FIR 25/385 (1+1)2018-10-28T17:21:46+08:00

    Project Description

    FIR 25/385 (1+1)

    ? Modular design
    ? Designed for main distribution boards
    ? MOV or GDT protection elements made in Europe

    Electrical data
    Category IEC / EN / VDEClass I, II / Type 1, 2 / B, C
    Max. continuous operating voltage (AC/DC)? Uc (L-N)385/500 V
    Max. continuous operating voltage (AC/DC)? Uc (N-PE)255 V
    Nominal discharge current (8/20) In25 kA/30 kA
    Max. discharge current (8/20) Imax60 kA/50 kA
    Impulse current (10/350) Iimp12.5 kA/50 kA
    Specific energy W/R39 kJ/Q / 2.5 MJ/Q
    Charge Q6.25 As/50 As
    Voltage protection level Up (L-N)< 1.7 kV
    Voltage protection level Up (N-PE)< 1.7 kV
    Residual voltage Ures @ Iimp< 1.4 kV
    Residual voltage Ures @ 5kA(8/20)< 1.3 kV
    Follow current Ifi100 ARMS
    Response time tA< 25 ns/100 ns
    Thermal protectionYES
    Back-up fuse (if mains > 250 A)160 Agl
    Short-circuit withstand ISCCR25 kA/50 Hz
    General Data
    Operating temperature-40 ~ 80℃
    Terminal screw torquemax. 3.0 Nm
    Terminal cross section35 mm2?(solid) / 25 mm2?(stranded)
    Mounting35 mm DIN rail, EN 60715
    Protection degreeIP20
    Housing materialThermoplastic; inflammability class UL 94 V-0
    Indication of disconnector operationred flag
    Remote contacts (RC)YES
    Remote contact ratingsAC: 250 V/0.5 A, 125 V/3 A
    Remote terminal cross sectionmax. 1.5 mm2
    Remote terminal torque0.25 Nm
    StandardIEC/EN 61643-11
    Network systemsTT, TN-S
    Protection modeL-N, N-PE
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