Since 1991
At mounting site, relative humidity not exceed 50% at the max temperature of +40°C,
higher relative humidity is allowable under lower temperature,
RH could be 90% at +20°C, special measures should be taken to occurrence of dews;
The products conform with IEC60947-1,IEC60947-2 standards.
ZUW1 Universal Circuit Breaker
ZYW1 intelligent air circuit breakers (hereinafter called ACB) are applied for the network circuit of AC 50Hz, rated voltage 400V, 690V and rated current between 630A and 6300A. Mainly used for distributing energy and protecting the circuit and power supply device against short-circuit, undervoltage, single-phase ground fault, etc. The ACB has intelligent protection function and the key parts adopt intelligent release. The release can make the accurate selective protection, which can avoid cutting off the power and improve the reliability of power supply. The products conform with IEC60947-1,IEC60947-2 standards.
2. Operation conditions
2.1 Temperature condition: -5°C~40°C;the average value within 24h shall not exceed+35°C(special situation excluded);
2.2 Altitude:≤2000m;
2.3 Pollution grade: Grade 3;
2.4 Air conditions:
At mounting site, relative humidity not exceed 50% at the max temperature of +40°C, higher relative humidity is allowable under lower temperature,
RH could be 90% at +20°C, special measures should be taken to occurrence of dews;
Main technical parameter
| Type | YCW1-2000 | YCW1-3200 | YCW1-6300 | ||
| Pole | 3P, 4P | 3P, 4P | 3P, 4P | ||
| Using category | B | B | B | ||
| Rated current In | A | 630, 800, 1000 1250, 1600, 2000 | 2000, 2500, 3000 | 4000, 5000, 6300 | |
| Rated frequency | Hz | 50 | 50 | 50 | |
| Rated operation voltage Ue | V | 400, 690 | 400, 690 | 400, 690 | |
| Rated insulation voltage Ui | V | 800 | 800 | 800 | |
| Arcing distance | mm | 0 | 0 | 0 | |
| Rated impulse withstanding voltage Uimp | V | 8000 | 8000 | 8000 | |
| Rated operation short circuit breaking capacity Ics (O-t-CO) | 400V | kA | 50 | 80 | 100 |
| 690V | kA | 40 | 50 | 75 | |
| Rated limiting short circuit breaking capacity Icu (O-t-CO) | 400V | kA | 80 | 100 | 120 |
| 690V | kA | 50 | 65 | 85 | |
| Rated short circuit closing capacity Icm | 400V | kA | 176 | 220 | 264 |
| 690V | kA | 105 | 143 | 187 | |
| Rated short time withstanding current Icw (O-t-CO, AC400V 0.4S) | 400V | kA | 50 | 65 | 85 |
| Operation life | Per hour | times | 20 | 20 | 10 |
| Electrical | times | 1000 | 500 | 500 | |
| Mechanical | times | 10000 | 5000 | 5000 | |
| Full breaking time | ms | 20~30 | 20~30 | 20~30 | |
| Full closing time | ms | 55~70 | 55~70 | 55~70 | |
| Power consumption | 3P | W | 360 | 1200 | 2000 |
| 4P | W | 450 | 1750 | 2300 | |
| Resistance of each pole | Fixed type | μΩ | 11 | 9 | - |
| Draw out type | μΩ | 20 | 14 | 10 | |
| Dimensions (L×W×H) | 3P fixed type | mm | 362×323×402 | 422×323×402 | |
| 3P draw out type | mm | 375×461×452 | 435×471×452 | ||
| 4P fixed type | mm | 457×323×402 | 537×323×402 | ||
| 4P draw out type | mm | 470×461×452 | 550×471×452 | ||
| Approximate weight | 3P fixed type | kg | 41 | 55 | |
| 3P draw out type | kg | 71 | 95 | 245 | |
| 4P fixed type | kg | 51.5 | 65 | - | |
| 4P draw out type | kg | 86 | 115 | 260 | |
Overload protection data
| Overload protection | YCW1-2000~6300 | |
| Adjust scope Ir1 | (0.4-1)In (pole difference 2%) | |
| 1.05 Ir1 | h | ≥2h non-tripping |
| 1.3 Ir1 | h | ≤1h tripping |
| Delay time tr1 when current is 2.0 In | s | 3.32, 5.32, 8.00, 13.3, 20, 26.6, 33.3, 45, 60, 93.3, 133, 200, 266, 333, 400, 433 |
| Delay time tr1 when current is 3.0 In | s | 1.25, 2, 3.5, 7.5, 10, 12.5, 16.8, 22.5, 35, 50, 75, 100, 125, 150, 162 |
| Accuracy | % | ±10 |
| Short circuit, short time delay | ||
| Adjust scope Ir1 Ir2 | (0.4-15)In (pole difference 2%) | |
| Delay time tr2 | ms | 100, 200, 300, 400 |
| Accuracy | % | ±10 |
Characteristic of intelligent controller
 |
Overload long time-delay anti-time limit protection |
| Short circuit short time-delay anti-time limit protection | |
| Short circuit short time-delay timing protection | |
| Short circuit instantaneous protection | |
| Insulate earth fault protection |
Electrical accessories
| Under-voltage release | Rated working voltage Ue(V) | AC400 AC230 |
 |
Acting voltage (V) | (0.35~0.7) Ue |
| Reliable close voltage (V) | (0.85~1.1) Ue | |
| Non close voltage (V) | ≤0.335Ue | |
| Power loss | 12VA (YCW1-1000 5VA) |
| Shunt release | Rated control power voltage Us(V) | AC400 AC230 DC220 DC110 |
 |
Acting voltage (V) | (0.7~1.1) Ue |
| Open time | 40VA 40W (YCW1-1000 5VA) | |
| Power loss | less than 30ms |
| Close electromagnetic iron | Rated control power voltage Us(V) | AC400 AC230 DC220 DC110 |
 |
Acting voltage (V) | (0.85~1.1) Ue |
| Open time | 40VA 40W (YCW1-1000 5VA) | |
| Power loss | less than 70ms |
| Motor operating device | Rated control power voltage Us(V) | AC400 AC230 DC220 DC110 |
 |
Acting voltage (V) | (0.85~1.1) Ue |
| Open time | 40VA 40W (YCW1-1000 5VA) | |
| Power loss | less than 5s |
If you have any enquiry about quotation or cooperation,please free to email us at niki@zhiyue.com or use the following enquiry form,Our sales representative will contact you within 24 hous.thank you for your interest in our products.
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