Short-Circuit Protection With Motor-Protective Circuit-Breakers; Approvals - Eaton PKZM4/XTPR DC1 Series Manual

2.3 Short-circuit protection with motor-protective circuit-breakers

2.4 Approvals

2.3 Short-circuit protection with motor-protective circuit-breakers
The following ￫ table 2 shows the short-circuit breaking capacity of the
PKZM4-.../XTPR...DC1 motor-protective circuit-breakers.
Fuse can be interconnected in the upstream circuit to increase the switching
capacity to 100 kA.
Table 2: Switching capacity of PKZM4-.../XTPR...DC1 with type of coordination "1" and "2"
230 V
1) 2)
I I
u q
3)
CSA kA A
16 150 N
25 150 N
32 50 100
40 50 100
50 50 100
58 50 160
63 50 160
1) Rated uninterrupted current I
2) Rated conditional short-circuit current I
3) Primary fusing is required if the short-circuit current exceeds the conditional rated short-circuit
current (I > I ). The conditional rated short-circuit current is determined by the primary fuse.
cc q
4) N = Not required
The PKZM4-.../XTPR...DC1 motor-protective circuit-breaker is compliant
with IEC/EN 60947 Standards for low-voltage switchgear and fulfils the
requirements of the 94/9/EC (ATEX 95) resp. 2014/34/EU directives for the
protection of motors operated in Ex e area.
c
II(2)G
0102
The system is UL and CSA approved for use in USA and Canada.
U s
PKZM4-.../XTPR...DC1 11/16 MN03402002Z-DE/EN www.eaton.com
400 V 440 V
2) 2)
I I
q q
3) 3)
kA A kA A
150 N 45 100
150 N 45 100
50 100 45 100
50 100 45 100
50 100 45 100
50 160 45 160
50 160 45 160
u
according to IEC/EN 60 947-4-1 norm
q
PTB 10 ATEX 3012
2 Engineering
500 V 690 V
2) 2)
I I
q q
3) 3)
kA A kA A
15 100 8 100
15 100 8 100
15 100 5 100
15 100 5 100
15 100 5 100
15 160 5 160
15 160 5 160
25