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Technical
Section 9
Dimensions
Section 10
PRD surge arresters
Type 2 or 3 LV withdrawable
surge arresters
Load protection
4
Rated discharge
current (Imax) /
Nominal
discharge current
(In)
Type of
protection
Network
Incoming Secondary
1P+N 3P+N 1P
2P
3P
4P
65 kA / 20 kA
Very high risk level
(strongly exposed site)
PRD65
16555
16556
16557
16442
16558
16443
16559
16659
40 kA / 15 kA
High risk level
PRD40
16561
16566
16562
16567
16444
16667
16445
16568
16563
16564
16569
16597
16664
16669
20 kA / 5 kA
Medium risk level
PRD20
16571
16672
16572
16446
16447
16573
16674
16574
16599
16673
8 kA / 2.5 kA
Secondary protection:
placed near the loads to be
protected when they are at a
distance of more than 30 m
from the incoming surge
arrester
PRD8
16576
16677
16577
16448
16449
16578
16679
16579
16678
16680
PRD withdrawable surge
arresters allow quick
replacement of damaged
cartridges.
Surge arrester/circuit breaker association
Type of surge arrester Associated circuit breaker
PRD65
Curve C 50 A
PRD40
Curve C 40 A
PRD20
Curve C 25 A
PRD8
Curve C 20 A
Spare cartridges
Type Spare cartridges for Part Number
C 65-460
PRD65r IT
16682
C 65-340
PRD65r
16681
C 40-460
PRD40r IT
16684
C 40-340
PRD40, PRD40r
16685
C 20-460
PRD20r IT
16686
C 20-340
PRD20, PRD20r
16687
C 8-460
PRD8r IT
16688
C 8-340
PRD8, PRD8r
16689
C neutral
All products
16691
1P+N
3P+N
Cartridge