Eaton Industrial Switchgear - xStart switching, protections and actuating motors

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Motor-protective circuit-breakers PKZ2
Characteristic curves
2010 CA08103002Z-EN
7/73
Characteristiccurves
High-capacity contact module S-PKZ2, contact module SE1A-PKZ2
Normal switching duty
Squirrel-cage motor
Operating
characteristics:
Switch on: From standstill
Switch off: While running
Typical
applications: Compressors
Pumps
Fans
Hinged flaps
Lifts
Escalators
Conveyor belts
Bucket-elevator
Mixers
Agitators
Centrifuges
Air-conditioning
system
General drives for manufacturing and
processing machines
Electrical
Characteristic: Switch on:
Switch off:
Up to 6 x motor rated current
1 x motor rated current
Utilization category: 100 % AC-3
Extreme switching duty
Squirrel-cage motor
Operating
characteristics:
Inching, DC braking, reversing
Typical
applications: Printing machines
Wire-drawing machines
Centrifuges
Special drives for
machining centers and machine tools
Electrical
Characteristic: Switch on:
Switch off:
6 x motor rated current
6 x motor rated current
Utilization category: 100 % AC-4
Light switching duty
Non-motor loads
Operating
characteristics:
Non inductive and slightly inductive loads
Typical
applications: Electric heat
Electrical
Characteristic: Switch on:
Switch off:
Up to 1.5 x rated operational
current
Utilization category: 100 % AC-1
Determination of the maximum operating frequency dependant on the rating and utilization category (recommended values) for (high capacity) contact modules
PN = max. motor rated output (kW)
Ops/h = max. operations per hour
0.1 0.2 0.4 0.6 0.8 1 2 3 4 5 6 8 10
0.81
1.05
1.42
1.86
2.65
5.2
6.8
8.8
11.4
15.4
22.1
28.5
35
3.6
0.25
0.37
0.55
0.75
1.1
2.2
3
4
5.5
7.5
11
15
18.5
1.5
AC-3/400V
kW A S(E1A)-PKZ2
Rated output of three-phasemotors 50...60 Hz
Component lifespan (millions of operations)
Rated operationalcurrent 50...60 Hz
Normal switching duty
0.81
1.05
1.42
1.86
2.65
5.2
6.8
8.8
11.4
15.4
22.1
28.5
35
3.6
0.25
0.37
0.55
0.75
1.1
2.2
3
4
5.5
7.5
11
15
18.5
1.5
AC-4/400V
kW A
0.01 0.02 0.030.04 0.06 0.1 0.2 0.3 0.4 0.6 1 2 3 4
S(E1A)-PKZ2
5 Rated operationalcurrent 50...60 Hz Rated output of three-phasemotors 50...60 Hz
Component lifespan (millions of operations)
Extreme switching duty
0.1 0.2 0.4 0.6 0.8 1 2 3 4 5 6 8 10
0.81
1.05
1.42
1.86
2.65
5.2
6.8
8.8
11.4
15.4
22.1
28.5
35
3.6
AC-1/400V
S(E1A)-PKZ2 A
40
Breaking current
Component lifespan (millions of operations)
Non-motor loads, 3-pole
100
150
200
300
400
500
600
800
1000
1500
2000
3000
4000
5000
6000
7000
9000
10 0 20 30 40 50 60 70 80 90 100%
AC-3
AC-4
(kW)
N P
Ops./h
PKZ2