DHO 40-420(1+1)-FMDHO 40-420(1+1)-FM
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Technical Specifications
GradeII
Type2
Location of useDistribution box
Power supply systemTN-S, TT
Nominal Discharge Current (In)20 kA(8/20μs) T2
Max. Discharge Current (Imax)40 kA(8/20μs) T2
Protective ElementHigh Energy MOV+GDT
Housing DesignPlug-in module and separate base design
Housing MaterialPA 66 UL 94 V-0
Certification MarksCE, UKCA, RoHS, TÜV, CNAS
Rated voltage Un
230 V AC
Max. continues operating voltage Uc420 VAC (L-PE), 255 VAC (N-PE)
Rated operational voltage U0220 V AC
Rated operational voltage Ue230 V AC
Rated frequency f50/60 Hz
Residual current(PE) IPE≤ 5 μA
Short-circuit current tolerance300 A
Nominal discharge current In (8/20μs)20 kA T2
Max. discharge current Imax (8/20μs)40 kA T2
Protection level UpL-N At In impuls current ≤ 1.89 kV (Noted 2.0)
Protection level UpL-N At Imax impuls current ≤ 2.31 kV
Protection level UpN-PE At 0.1 In impuls current ≤ 0.19 kV
Protection level UpN-PE At 0.2 In impuls current ≤ 0.21 kV
Protection level UpN-PE At 0.5 In impuls current ≤ 0.27 kV
Protection level UpN-PE At In impuls current ≤ 0.50 kV
Protection level UpN-PE At Imax impuls current ≤ 0.94 kV
Measured limiting voltage3kA/6 kV (1.2/50μs) Umax ≤ 0.90 kV
Mounting connection35mm DIN rail
Fine-/solid strand (For M5 biconnect terminal blocks)0.5-25 mm2 / 0.5-35 mm2
Terminal Screw Torque2.0 N.m
Fine strand wires notemust furnish with ferrules
Remote warning contact（only -FM case）single-pole change-over contact; plugable MC 1,5/3 ST
Fine-/solid strand1,5/1,5 mm2 / AWG 26-16
Spec/torque/dimensionM2 / 0,25 N.m / 7 mm
Max. operating voltage250 VAC
Max. operating current0.75 A AC
Response time tA ( L-N)≤ 25 ns
Response time tA ( N-PE)≤ 100 ns
Max. required fuse (series wiring/parallel wiring)80A gL/gG
Temperature range-40°C...+85°C
Type of protection according to IEC 60529IP20
Clearances and creepage distances (according to EN 60664-1:2003)≥ 6mm
Compliant standardsIEC / EN 61643-11; IEC 61643-11; GB18802.11
Test class EN/IEC T1/I&T2/Ⅱ
Insulating material (Housing)PA 66
Inflammability class (according to UL 94)V0
In accordance to test standardsIEC 61643-11 GB18802.11
