Distributing and fuse box with a pillar PRIS 3

Pilierová rozpozovacia a istiaca skriňa PRIS 3


Rated voltage 500 V Supply line cable, max 240 mm2
Nominal frequency 50 Hz Method of fastening for flushing into a hole
Rated current 400 A Nominal dimensions 1040 x 580 x 255 mm
Short-circuit resistance 25 kA Instrumentation 12 fuse bases SP 2
Protection class IP43 Bus bar medium, protective with screws M10
Type of connection screwed down by 4 screws M 16 on concrete base, posibility for flushing into a hole Door closure according to STN 35 97 54

Protection of non-live parts

zero adjusting or earhing

IEC 60439-5


The PRIS 3 connecting box is used for branching, distributing and protection of cable distribution network up to 500 V, 400 A, 50 Hz by underground conductors of up to 240 mm2. Maximum current load of the box is 400 A, whereas sum total of protected current cable outlets mustn't get over Im 400 A.(For example 1x200 A+3x63 A.)


The box is made of steel sheet thick 3 mm, hot-dip galvanized. The lace hole for incoming and excursory tension line is in lower side. The support lath of fuses is welded to the lateral sides of the box. The door of the box, cable case and case of cable terminals have a dip flash symbol according to STN 34 5550. The box and the case are locked by a lock according to STN 35 9754. The scheme of connection and protective sign "ATTENTION - REVERSE CURRENT" are on back side of the door. The cabels are fixated by the help of cable clamps. The conductors are connected by the help of cable springes.


Two fasteners to concrete are included in the supply. The key to lip locks, plug cartridges and fused grip are not included in the supply. It is forbidden to use PH fuse plugs with high losses!

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