General specifications
Product name
Eaton Moeller® series PKZM4 Motor-protective circuit-breaker
Part no.
PKZM4-32
EAN
4015082223533
Product Length/Depth
160 millimetre
Product height
140 millimetre
Product width
55 millimetre
Product weight
1.136 kilogram
Certifications
UL Category Control No.: NLRV
UL File No.: E36332
CSA
UL
VDE 0660
CSA Class No.: 3211-05
CSA-C22.2 No. 60947-4-1-14
CE
IEC/EN 60947
IEC/EN 60947-4-1
CSA File No.: 165628
UL 60947-4-1
Product Tradename
PKZM4
Product Type
Motor-protective circuit-breaker
Product Sub Type
None
Features & Functions
Actuator type
Turn button
Features
Phase-failure sensitivity (according to IEC/EN 60947-4-1, VDE 0660 Part 102)
Functions
Motor protection
Phase failure sensitive
Number of poles
Three-pole
General information
Connection
Screw terminals
Degree of protection
Terminals: IP00
IP20
Explosion safety category for dust
ATEX dust-ex-protection, PTB 10, ATEX 3012, Ex II(2) G
Lifespan, electrical
30,000 operations (at 400V, AC-3)
Lifespan, mechanical
30,000 Operations (Main conducting paths)
Mounting position
Can be snapped on to IEC/EN 60715 top-hat rail with 7.5 or 15 mm height.
Operating frequency
40 Operations/h
Overvoltage category
III
Pollution degree
3
Product category
Motor protective circuit breaker
Protection
Finger and back-of-hand proof, Protection against direct contact when actuated from front (EN 50274)
Rated impulse withstand voltage (Uimp)
6000 V AC
Shock resistance
15 g, Mechanical, According to IEC/EN 60068-2-27, Half-sinusoidal shock 10 ms
Suitable for
Branch circuit: Manual type E if used with terminal, or suitable for group installations, (UL/CSA)
Also motors with efficiency class IE3
Temperature compensation
≤ 0.25 %/K, residual error for T > 40°
-5 - 40 °C to IEC/EN 60947, VDE 0660
-25 - 55 °C, Operating range
Climatic environmental conditions
Altitude
Max. 2000 m
Ambient operating temperature - min
-25 °C
Ambient operating temperature - max
55 °C
Ambient operating temperature (enclosed) - min
-25 °C
Ambient operating temperature (enclosed) - max
40 °C
Ambient storage temperature - min
-40 °C
Ambient storage temperature - max
80 °C
Climatic proofing
Damp heat, constant, to IEC 60068-2-78
Damp heat, cyclic, to IEC 60068-2-30
Terminal capacities
Terminal capacity (flexible with ferrule)
2 x (0.75 - 25) mm², Main cables
1 x (0.75 - 35) mm², Main cables
Terminal capacity (solid)
2 x (0.75 - 16) mm²
1 x (0.75 - 16) mm², Main cables
Terminal capacity (solid/stranded AWG)
14 - 2
Stripping length (main cable)
14 mm
Tightening torque
3.3 Nm, Screw terminals, Main cable
Electrical rating
Rated frequency - min
50 Hz
Rated frequency - max
60 Hz
Rated operational current (Ie)
32 A
Rated operational power at AC-3, 220/230 V, 50 Hz
7.5 kW
Rated operational power at AC-3, 380/400 V, 50 Hz
15 kW
Rated operational power at AC-3, 440 V, 50 Hz
17.5 kW
Rated operational power at AC-3, 500 V, 50 Hz
22 kW
Rated operational power at AC-3, 690 V, 50 Hz
22 kW
Rated operational voltage (Ue) - min
690 V
Rated operational voltage (Ue) - max
690 V
Rated uninterrupted current (Iu)
32 A
Short-circuit rating
Rated short-circuit breaking capacity Icu at 400 V AC
50 kA
Short-circuit current
60 kA DC, up to 250 V DC, Main conducting paths
Short-circuit current rating (group protection)
42 kA, 600 V High Fault, CB, SCCR (UL/CSA)
600 A, 600 V High Fault, max. CB, SCCR (UL/CSA)
600 A, 600 V High Fault, max. Fuse, SCCR (UL/CSA)
42 kA, 600 V High Fault, Fuse, SCCR (UL/CSA)
Short-circuit current rating (type E)
Accessories required BK50/3-PKZ4-E
25 kA, 600 Y/347 V, SCCR (UL/CSA)
65 kA, 480 Y/277 V, SCCR (UL/CSA)
65 kA, 240 V, SCCR (UL/CSA)
Short-circuit release
Basic device fixed 15.5 x Iu, Trip Blocks
496 A, Irm, Setting range max.
± 20% tolerance, Trip blocks
Switching capacity
Switching capacity
32 A, AC-3 up to 690 V
32 A (3 contacts in series), DC-5 up to 250V
Motor rating
Assigned motor power at 200/208 V, 60 Hz, 3-phase
7.5 HP
Assigned motor power at 230/240 V, 60 Hz, 1-phase
5 HP
Assigned motor power at 230/240 V, 60 Hz, 3-phase
10 HP
Assigned motor power at 460/480 V, 60 Hz, 3-phase
20 HP
Assigned motor power at 575/600 V, 60 Hz, 3-phase
30 HP
Trip blocks
Overload release current setting - min
25 A
Overload release current setting - max
32 A
Tripping characteristic
Overload trigger: tripping class 10 A
Design verification
Equipment heat dissipation, current-dependent Pvid
18 W
Heat dissipation capacity Pdiss
0 W
Heat dissipation per pole, current-dependent Pvid
6 W
Rated operational current for specified heat dissipation (In)
32 A
Static heat dissipation, non-current-dependent Pvs
0 W
10.2.2 Corrosion resistance
Meets the product standard's requirements.
10.2.3.1 Verification of thermal stability of enclosures
Meets the product standard's requirements.
10.2.3.2 Verification of resistance of insulating materials to normal heat
Meets the product standard's requirements.
10.2.3.3 Resist. of insul. mat. to abnormal heat/fire by internal elect. effects
Meets the product standard's requirements.
10.2.4 Resistance to ultra-violet (UV) radiation
Meets the product standard's requirements.
10.2.5 Lifting
Does not apply, since the entire switchgear needs to be evaluated.
10.2.6 Mechanical impact
Does not apply, since the entire switchgear needs to be evaluated.
10.2.7 Inscriptions
Meets the product standard's requirements.
10.3 Degree of protection of assemblies
Does not apply, since the entire switchgear needs to be evaluated.
10.4 Clearances and creepage distances
Meets the product standard's requirements.
10.5 Protection against electric shock
Does not apply, since the entire switchgear needs to be evaluated.
10.6 Incorporation of switching devices and components
Does not apply, since the entire switchgear needs to be evaluated.
10.7 Internal electrical circuits and connections
Is the panel builder's responsibility.
10.8 Connections for external conductors
Is the panel builder's responsibility.
10.9.2 Power-frequency electric strength
Is the panel builder's responsibility.
10.9.3 Impulse withstand voltage
Is the panel builder's responsibility.
10.9.4 Testing of enclosures made of insulating material
Is the panel builder's responsibility.
10.10 Temperature rise
The panel builder is responsible for the temperature rise calculation. Eaton will provide heat dissipation data for the devices.
10.11 Short-circuit rating
Is the panel builder's responsibility. The specifications for the switchgear must be observed.
10.12 Electromagnetic compatibility
Is the panel builder's responsibility. The specifications for the switchgear must be observed.
10.13 Mechanical function
The device meets the requirements, provided the information in the instruction leaflet (IL) is observed.

Technical data ETIM 9.0

Low-voltage industrial components (EG000017) / Motor protection circuit-breaker (EC000074)
Electric engineering, automation, process control engineering / Low-voltage switch technology / Circuit breaker (LV < 1 kV) / Motor protection circuit-breaker (ecl@ss13-27-37-04-01 [AGZ529021])
Overload release current setting
25 - 32 A
Adjustment range undelayed short-circuit release
496 - 496 A
With thermal overload protection
No
Phase failure sensitive
Yes
Switch off technique
Thermomagnetic
Rated operating voltage
690 - 690 V
Rated permanent current Iu
32 A
Rated operation power at AC-3, 230 V
7.5 kW
Rated operation power at AC-3, 400 V
15 kW
Power loss
18 W
Type of electrical connection of main circuit
Screw connection
Type of control element
Turn button
Device construction
Built-in device fixed built-in technique
With integrated auxiliary switch
No
With integrated under voltage release
No
Number of poles
3
Rated short-circuit breaking capacity lcu at 400 V, AC
50 kA
Degree of protection (IP)
IP20
Height
140 mm
Width
55 mm
Depth
160 mm