Distributing and fuse box SR 5



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 1170 x 590 x 255 mm
Short-circuit resistance 25 kA Instrumentation 18 fuse bases SP 2
Protection class IP43 Bus bar medium, protective with screws M10
Type of connection for continuous connection Door closure according to STN 35 97 54

Protection of non-live parts

zero adjusting or earhing

IEC 60439-5


The SR 5 distributing and fuse 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 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: 4x100 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 has a dip flash symbol according to STN 34 5550.


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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