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 |
420 - 630 A |
N/O = Normally open |
|
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 |
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 |
630 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 |
2.7 W |
10.2 Strength of materials and parts >10.2.4 Resistance to ultra-violet (UV) radiation |
8.1 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 |
|
Suitable for |
|
Characteristic curve |
190 - 630 A |
Characteristic curve |
690 V |