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Motor-protective circuit-breakers PKZ2
Motor-protective circuit-breakers
2010
CA08103002Z-EN
www.eaton.comMotor-protectivecircuit-breakers
Technical data
PKZ2/ZM-…(8)
PKZ2/ZM-
…(8)/
SE…
PKZ2/ZM-…(8)/
S(+CL)
S(EA)…
General
Standards
IEC/EN 60947, VDE 0660, UL 508, CSA C 22.2 No. 14, GL, LR, DNV, PRS, BV, RINA, RS, EZU,
MEEI
Climatic proofing
Damp heat, constant, to IEC 60068-2-78;
cyclic to IEC 60068-2-30
Ambient temperature
Storage
°C -25…70
-25…70
-25…70
-25…70
Open
°C -25…60
-25…60
-25…60
-25…60
Encapsulated
°C -25…40
-25…40
-25…40
-25…40
Built-in position
Direction of incoming supply
Any
Any
Any
Any
Degree of protection
IP00
IP00
IP00
IP00
Mechanical shock resistance
Half-sinusoidal shock 20 ms to IEC 60068-2-27
g
30
8
8
8
Installation altitude
m max. 2000
max. 2000
max. 2000
max. 2000
Terminal capacity
Solid or stranded
mm
2
1
x (1 - 16)
2
x (1 - 6)
1
x (1 - 16)
2
x (1 - 6)
1
x (1 - 16)
2
x (1 - 6)
1
x (1 - 16)
2
x (1 - 6)
Flexible with
ferrule
mm
2
1
x (1.5 - 10)
2
x (1.5 - 6)
1
x (1.5 - 10)
2
x (1.5 - 6)
1
x (1.5 - 10)
2
x (1.5 - 6)
1
x (1.5 - 10)
2
x (1.5 - 6)
Solid or stranded
AWG 14 - 6
14 - 6
14 - 6
14 - 6
Terminal screw tightening torque Main conductors
Nm 1.8
1.8
1.8
1.8
Auxiliary conductors
Nm 1
1
1
1
Main contacts
Rated impulse withstand voltage
U
imp
V AC 6000
6000
6000
6000
Overvoltage category/pollution degree
III/3
III/3
III/3
III/3
Rated operational voltage
U
e
V AC 690
690
690
690
Rated uninterrupted current = rated operational current
I
u
= I
e
A 40
40
40
40
Rated frequency
Hz
50 - 60
50 - 60
50 - 60
50 - 60
Heat dissipation (3 pole at operating temperature)
W 14
23
23
9
Lifespan, mechanical
1)
Operations
x 10
6
0.1
5
5
5
Lifespan, electrical
100 %
AC-3
Operations
x 10
6
0.05
1
1
1
AC-4
Operations
x 10
6
–
0.03
0.03
0.03
Maximum operating frequency
Operations/h Ops/h 60
￫Page 7/72
Motor switching capacity
AC-3 up to 690 V
A 40
40
40
40
DC-5 up to 250 V
A 40
40
40
40
DC applications
Breaking capacity I
cn
I
cn
(250
V DC), L/R = 15 ms
kA 30
30
50
–
I
cn
(125
V DC), L/R = 15 ms
kA 50
50
65
–
Switching times in the even of a
short-circuit load
Minimum command time
ms Approx. 2
Approx. 2
Approx. 2
–
Opening delay
ms Approx. 0.5
Approx. 0.5
Approx. 0.5
–
Total opening delay
ms 6
6
4
–
ZM-…-PKZ2
ZMR-…-PKZ2 ZM-…-8-PKZ2(4)
Trip blocks
Function
Motor protection Motor protection System protection
Temperature compensation
To IEC/EN 60947, VDE 0660
°C -5…40
-5…40
-5…40
Operating range
°C -25…60
-25…60
-25…60
Temperature compensation residual error for T > 40 °C
%/
K ≦ 0.25
≦ 0.25
≦ 0.25
Short-circuit release tolerance
%
± 20
± 20
± 20
Setting range of overload releases
x I
u
0.6 - 1
0.6 - 1
0.6 - 1
Short-circuit releases
x I
u
8.5 - 14
8.5 - 14
5 - 8.5
Notes
1)
With dual-frequency coil 50/60 Hz the
mechanical lifespan reduces by 30%
S
CL
S
CL
90
°
90
°
90
°
90
°
90
°
30
°
PKZ2
PKZ2/.../S
PKZ2/.../+CL
PKZ2/.../S
PKZ2
PKZ2/.../+CL
{
PKZ2
PKZ2