Short-Circuit Protection At Motor-Protective Circuit-Breakers; Approvals - Eaton PKE12 Handbuch

2 Engineering

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

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

2.4 Approvals

38
The following table 4 shows the short-circuit breaking capacity of PKE motor-
protective circuit-breaker.
Fuse can be interconnected in the upstream circuit to increase the switching
capacity to 100 kA.
Table 4: Switching capacity of PKE motor-protective circuit-breakers with type 1 and 2
coordinations
230 V
u 1) q 2)
I I
kA
PKE12/XTU(A)-1,2 100
PKE12/XTU(A)-4 100
PKE12/XTU(A)-12 100
PKE32/XTU(A)-12 100
PKE32/XTU(A)-32 100
PKE65/XTUW(A)-32 80
PKE65/XTU(A)-65 80
1) Rated uninterrupted current I
2) Rated conditional short-circuit current I
3) Fuse (A gG/gL) for enhancing the switching capacity of the motor-protective circuit-breaker to 100 kA
N = Not required
According to standard IEC EN 60947, PKE motor-protective circuit-breakers
are low-voltage switchgear and fulfil the requirements of Directive 2014/34/
EU (ATEX) for protecting motors in hazardous (Ex e) areas).
c
II(2)G [Ex e] [Ex d] [Ex px]
II(2)D [Ex t] [Ex p]
0102
The system is UL and CSA approved for use in USA and Canada.
U s
Further approvals exist for:
China
Russland
Ukraine
PKE12, PKE32, PKE65 11/17 MN03402004Z-DE/EN www.eaton.com
400 V 440 V
q 2) q 2)
I I
3) 3)
A kA A kA
N 100 N 15
N 100 N 50
N 100 N 20
N 100 N 25
N 100 N 25
100 80 100 45
160 80 160 45
u
as per IEC/EN 60 947-4-1
q
PTB 10 ATEX 3021
500 V 690 V
q 2) q 2)
I I
3) 3)
A kA A kA
50 10 50 3
50 10 50 3
80 20 80 3
50 6 50 3
80 6 80 3
100 15 100 5
160 15 160 5
3)
A
50
50
80
50
80
100
160