PI-3k is a three-phase surge arrester type 3, which is equipped with high-frequency filter, according to EN 61643-11 and IEC 61643-11. They are produced for rated load current within the range of 16, 25, 32, 50, 63, 80 and 120A for application use in TNS and TNC systems. éPI-3k range is designed for protection of three-phase electronic appliances in L.V. power supply systems against transient overvoltage and high-frequency disturbance. The function failure of varistors is indicated by target disconnection of mechanical thermal fuses which react to the varistors overheating above c. 120°C.

They can be manufactured in a comprehensive range of the Nominal voltages UN= 4, 48, 60, 80, 110, 120, 130, 160 and 230V (AC/DC).

Internal wiring diagram
Internal wiring diagram
Dimension drawing
Dimension drawing
Installation diagram
Installation diagram Počet fotek v galerii: 2
Test class according to EN 61643-11:2012 and IEC 61643-11:2011 TYP3, CLASS III
Network type TN-S
Nominal voltage UN 3 x 230 / 400 V AC
Maximum continuous operating voltage UC 3 x 275/ 480 V AC
Rated load current IL 16 A
Nominal discharge current for class II test (8/20) In 3 kA (L/N, L/PE)
5 kA (N/PE)
Open circuit voltage Uoc 6 kV (L/N, L/PE)
10 kV (N/PE)
Voltage protection level at UOC Up < 850 V (L/N)
< 1,5 kV (L/PE)
< 1,2 kV (N/PE)
Temporary overvoltage (TOV) L/N UT 335 V/ 5 s
Temporary overvoltage (TOV) N/PE UT 1200 V/ 0,2 s
Asymmetrical attenuation of filter (band-stop filter) min. 80 dB at 2 MHz
min. 40 dB (0,15 - 30 MHz)
Filters constans at Cx1 CX1 150 nF
Filters constans at Cx2 CX1 330 nF
Filters constans at Cy CY 2 x 47 nF
Filters constans at L L 1,3 mH
Power loss at winding temp. 20°C < 7,5 W
Response time tA < 25 ns (L/N)
< 100 ns (L/PE, N/PE)
Back-up fuse 16 A
LPZ 2-3
Housing material Polyamid PA6, UL94 V-0
Degree of protection of enclosure IP20
Operating temperature ϑ -40°C ... +55° C
Recommended section of the connected conductors S 4 - 6 mm2 Cu
Method of assembly DIN rail 35 mm
Failure signalisation (S) pushed in - ok / pushed out - failure
Potential free signal contact (DS) (recommended cross-section of remote monitoring max.1 mm2) AC: 250 V / 0,5 A, DC: 250 V / 0,1 A
Lifetime min. 100 000 h
Weight m 500 g
Article number 30 300
Installation instructions (1.63 MB)
2D model (607.77 KB) for registered only
3D model (1005.96 KB) for registered only
Certificates (131.75 KB) for registered only
EC declaration of conformity (80.23 KB) for registered only