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ZW7-290
052448 ZW7-290
52448

Current transformer-operated overload relay, 190-290A, 1N/O+1N/CCurrent transformer-operated overload relay, Product range: ZW7 current transformer-operated overload relays, Description: Test/off button, Reset pushbutton manual/auto, Trip-free release, Protection with heavy starting duty, Mounting type: Separate mounting, Auxiliary contacts N/O = Normally open: 1 N/O, Auxiliary contacts N/C = Normally closed: 1 N/C, Standards: IEC/EN 60947, VDE 0660, UL, CSA, Degree of Protection: IP00

Current transformer-operated overload relay, 190-290A, 1N/O+1N/C
Current transformer-operated overload relay, Product range: ZW7 current transformer-operated overload relays, Description: Test/off button, Reset pushbutton manual/auto, Trip-free release, Protection with heavy starting duty, Mounting type: Separate mounting, Auxiliary contacts N/O = Normally open: 1 N/O, Auxiliary contacts N/C = Normally closed: 1 N/C, Standards: IEC/EN 60947, VDE 0660, UL, CSA, Degree of Protection: IP00

Product range ZW7 current transformer-operated overload relays
Description Test/off button
Reset pushbutton manual/auto
Trip-free release
Protection with heavy starting duty
Mounting type Separate mounting
Overload releases [Ir ]
Contact sequence 190 - 290 A
N/O = Normally open 230S006
N/C = Normally closed
Notes 1 N/O
Standards 1 N/C
Climatic proofing

The main current parameters are defined by the main current wiring which is used.

Ambient temperature
>Open
Ambient temperature
>Enclosed
IEC/EN 60947, VDE 0660, UL, CSA
Temperature compensation Damp heat, constant, to IEC 60068-2-78
Damp heat, cyclic, to IEC 60068-2-30
Mounting position -25 - +50 °C
Weight - 25 - 40 °C
Mechanical shock resistance Continuous
Degree of Protection As required
Protection against direct contact when actuated from front (EN 50274) 0.8 kg
Altitude 10
Sinusoidal
Shock duration 10 ms g
Rated impulse withstand voltage [Uimp] IP00
Overvoltage category/pollution degree Finger and back-of-hand proof
Rated insulation voltage [Ui ] Max. 2000 m
Rated operational voltage [Ue]
Safe isolation to EN 61140
>Between auxiliary contacts and main contacts
8000 V AC
Safe isolation to EN 61140
>Between main circuits
III/3
Short-circuit protection Maximum fuse 1000 V
Current heat loss (3 conductors)
>Lower value of the setting range
1000 V AC
Current heat loss (3 conductors)
>Maximum setting
440 V AC
Push-through opening [⌀] 440 V AC
Rated impulse withstand voltage [Uimp] With overload relay in conjunction with a transformer as required for the contactor
Overvoltage category/pollution degree 3 W
Terminal capacities
>Solid
10 W
Terminal capacities
>Flexible with ferrule
27 mm
Terminal capacities
>Solid or stranded
Terminal screw 4000 V
Tightening torque III/3
Stripping length 1 x (0.75 - 4)
2 x (0.75 - 4) mm2
Tools
>Pozidriv screwdriver
1 x (0.75 - 2.5)
2 x (0.75 - 2.5) mm2
Tools
>Standard screwdriver
2 x (18 - 14) AWG
Rated insulation voltage [Ui ] M3.5
Rated operational voltage [Ue ] 1.2 Nm
Safe isolation to EN 61140
>between the auxiliary contacts
8 mm
Conventional thermal current [Ith ] 2 Size
Rated operational current [Ie ]
>AC-15
>Make contact
>120 V [Ie ]
1 x 6 mm
Rated operational current [Ie ]
>AC-15
>Make contact
>220 V 230 V 240 V [Ie ]
500 V AC
Rated operational current [Ie ]
>AC-15
>Make contact
>380 V 400 V 415 V [Ie ]
500 V AC
Rated operational current [Ie ]
>AC-15
>Make contact
>500 V [Ie ]
240 V AC
Rated operational current [Ie ]
>AC-15
>Break contact
>120 V [Ie ]
6 A
Rated operational current [Ie ]
>AC-15
>Break contact
>220 V 230 V 240 V [Ie ]
1.5 A
Rated operational current [Ie ]
>AC-15
>Break contact
>380 V 400 V 415 V [Ie ]
1.5 A
Rated operational current [Ie ]
>AC-15
>Break contact
>500 V [Ie ]
0.5 A
Rated operational current [Ie ]
>DC L/R ≦ 15 ms
0.5 A
Rated operational current [Ie ]
>DC L/R ≦ 15 ms
>24 V [Ie ]
1.5 A
Rated operational current [Ie ]
>DC L/R ≦ 15 ms
>60 V [Ie ]
1.5 A
Rated operational current [Ie ]
>DC L/R ≦ 15 ms
>110 V [Ie ]
0.9 A
Rated operational current [Ie ]
>DC L/R ≦ 15 ms
>220 V [Ie ]
0.8 A
Short-circuit rating without welding
>max. fuse
Switch-on and switch-off conditions based on DC-13, time constant as specified.
Auxiliary contacts
>Pilot Duty
>AC operated
0.9 A
Auxiliary contacts
>Pilot Duty
>DC operated
0.75 A
Rated operational current for specified heat dissipation [In] 0.4 A
Heat dissipation per pole, current-dependent [Pvid] 0.2 A
Equipment heat dissipation, current-dependent [Pvid] 6 A gG/gL
Static heat dissipation, non-current-dependent [Pvs]
Heat dissipation capacity [Pdiss]

Ambient temperature: Operating range to IEC/EN 60947, PTB: -5°C to +50°C

Terminal capacities Main circuits solid and flexible with ferrule: When connecting 2 conductors, only the following combinations are admissible:

Rated operational current: Making and breaking currents to DC-13, time constant as stated

Short-circuit rating: See transparent overlay "Fuses" for time/current characteristics (Please enquire)

Operating ambient temperature min.
Operating ambient temperature max. B300 at opposite polarity
B600 at same polarity
10.2 Strength of materials and parts
>10.2.2 Corrosion resistance
R300
10.2 Strength of materials and parts
>10.2.3.1 Verification of thermal stability of enclosures
10.2 Strength of materials and parts
>10.2.3.2 Verification of resistance of insulating materials to normal heat
290 A
10.2 Strength of materials and parts
>10.2.3.3 Verification of resistance of insulating materials to abnormal heat and fire due to internal electric effects
2.4 W
10.2 Strength of materials and parts
>10.2.4 Resistance to ultra-violet (UV) radiation
7.2 W
10.2 Strength of materials and parts
>10.2.5 Lifting
0 W
10.2 Strength of materials and parts
>10.2.6 Mechanical impact
0 W
10.2 Strength of materials and parts
>10.2.7 Inscriptions
-25 °C
10.3 Degree of protection of ASSEMBLIES +50 °C
10.4 Clearances and creepage distances
10.5 Protection against electric shock Meets the product standard´s requirements.
10.6 Incorporation of switching devices and components Meets the product standard´s requirements.
10.7 Internal electrical circuits and connections Meets the product standard´s requirements.
10.8 Connections for external conductors Meets the product standard´s requirements.
10.9 Insulation properties
>10.9.2 Power-frequency electric strength
Meets the product standard´s requirements.
10.9 Insulation properties
>10.9.3 Impulse withstand voltage
Does not apply, since the entire switchgear needs to be evaluated.
10.9 Insulation properties
>10.9.4 Testing of enclosures made of insulating material
Does not apply, since the entire switchgear needs to be evaluated.
10.10 Temperature rise Meets the product standard´s requirements.
10.11 Short-circuit rating Does not apply, since the entire switchgear needs to be evaluated.
10.12 Electromagnetic compatibility Meets the product standard´s requirements.
10.13 Mechanical function Does not apply, since the entire switchgear needs to be evaluated.
Adjustable current range Does not apply, since the entire switchgear needs to be evaluated.
Max. rated operation voltage Ue Is the panel builder´s responsibility.
Mounting method Is the panel builder´s responsibility.
Type of electrical connection of main circuit Is the panel builder´s responsibility.
Number of auxiliary contacts as normally closed contact Is the panel builder´s responsibility.
Number of auxiliary contacts as normally open contact Is the panel builder´s responsibility.
Number of auxiliary contacts as change-over contact The panel builder is responsible for the temperature rise calculation. Eaton will provide heat dissipation data for the devices.
Release class Is the panel builder´s responsibility. The specifications for the switchgear must be observed.
Reset function input Is the panel builder´s responsibility. The specifications for the switchgear must be observed.
Reset function automatic The device meets the requirements, provided the information in the instruction leaflet (IL) is observed.
Reset function push-button
Product Standards
UL File No. 190 - 290 A
UL Category Control No. 690 V
CSA File No. Separate positioning
CSA Class No. Screw connection
North America Certification 1
Specially designed for North America 1
Suitable for 0
Max. Voltage Rating Other
Degree of Protection No
Characteristic curve Yes
Characteristic curve Yes

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