CNC YCW1-1000-3p/4p Air Circuit Breaker ACB
General
YCW1 series 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.
Type designation
Type designation
YCW1 - 2000 / 3 + Installation + Control unit + Common use accessory + Optional accessory
2000: Rated current in scope of frame current
2000 Type-in: 630A, 800A, 1000A, 1250A, 1600A, 2000A;
3200 Type-in: 2000A, 2500A, 3200A;
6300 Type-in: 4000A, 5000A, 6300A;
3:Pole number
3-default, 4-4 pole
Installation:Fixed type-horizontal, vertical
Control unit :L type-dial switch mode, over-current protection (overload, short delay,
Installation:Fixed type-horizontal, vertical
Draw out type-horizonal, vertical
Note: 2000 type have vertical wiring, others are horizontal wiring
Control unit :L type-dial switch mode, over-current protection (overload, short delay,
instantaneous).
2M type-digitaldisplay,over-current protection (overload, shortdelay,
instantaneous), 4P or 3P+N have earthing protection (3M type is LCD display).
2H type-communication function, digital display, over-current protection
(overload, short delay, instantaneous), 4P or 3P+N have earthing protection (3H
type is LCD display).
Common use accessory: Closing electromagnet-AC230V, AC400V, DC220V
Undervoltage release-AC230V, AC400V, undervoltage instantaneous,
undervoltage time-delay
Release (close) magnetic iron-AC230V, AC400V, DC220V
Electric operation mechanism-AC230V, AC400V, DC110V, DC220V
Auxiliary contact-standard type (4a4b), special type (5a5b, 6a6b)
Note: a-normal open, b-normal closeClosing electromagnet-AC230V, AC400V, DC220V
Undervoltage release-AC230V, AC400V, undervoltage instantaneous,
undervoltage time-delay
Release (close) magnetic iron-AC230V, AC400V, DC220V
Electric operation mechanism-AC230V, AC400V, DC110V, DC220V
Auxiliary contact-standard type (4a4b), special type (5a5b, 6a6b)
Note: a-normal open, b-normal close
Optional accessory:Mechanical inter-lock:
Common use accessory: Closing electromagnet-AC230V, AC400V, DC220V
Undervoltage release-AC230V, AC400V, undervoltage instantaneous,
undervoltage time-delay
Release (close) magnetic iron-AC230V, AC400V, DC220V
Electric operation mechanism-AC230V, AC400V, DC110V, DC220V
Auxiliary contact-standard type (4a4b), special type (5a5b, 6a6b)
Note: a-normal open, b-normal closeClosing electromagnet-AC230V, AC400V, DC220V
Undervoltage release-AC230V, AC400V, undervoltage instantaneous,
undervoltage time-delay
Release (close) magnetic iron-AC230V, AC400V, DC220V
Electric operation mechanism-AC230V, AC400V, DC110V, DC220V
Auxiliary contact-standard type (4a4b), special type (5a5b, 6a6b)
Note: a-normal open, b-normal close
Optional accessory:Mechanical inter-lock:
one circuit breaker (1lock+1key)
two circuit breaker (steel cable inter-lock, connecting rod inter-lock, 2lock+1key)
three circuit breakers (3locks+2keys, connecting rod inter lock)
Automatic power transfer system
Current transformer connected with neutral lead
Operation conditions
| Item | Description |
| Ambient temperature | -5ºC~+40ºC (except special order products) |
| Altitude | ≤2000m |
| Pollution grade | 3 |
| Safety category | Main circuit and undervoltage tripping coil is IV, other auxiliary and control circuit is III |
| Installation position | Vertical installed, tilt not exceed 5 degree |
| Environmental protection | Most of parts use recyclable and degradable materials |
| Isolating function | With isolating function |
Specifications
Curves
Data
| 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 | 40 | 50 | 100 |
| 660V | kA | 40 | 50 | 65 | |
| Rated limiting short circuit breaking capacity Icu (O-t-CO) | 400V | kA | 65 | 80 | 120 |
| 660V | kA | 50 | 65 | 75 | |
| Rated short time withstanding current Icw (O-t-CO, AC400V 0.4S) | 400V | KA | 45 | 65 | 100 |
| Operation life | Per hour | times | 20 | 20 | 10 |
| Electrical | times | 1000 | 500 | 500 | |
| Mechanical | ms | 10000 | 5000 | 5000 | |
| Full breaking time | ms | 20~30 | 20~30 | 20~30 | |
| Full closing time | W | 55~70 | 55~70 | 55~70 | |
| Power consumption | 3P | W | 360 | 1200 | 2000 |
| 4P | μΩ | 450 | 1750 | 2300 | |
| Resistance of each pole | Fixed type | μΩ | 11 | 9 | - |
| Draw out type | mm | 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 | kg | 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 | kA | 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 | |||||
| 1.5 Ir1 | s | 15 | 30 | 60 | 120 | 240 | 480 |
| 2.0 Ir1 | s | 8.4 | 16.9 | 33.7 | 67.5 | 135 | 270 |
| Accuracy | % | ±15 | |||||
| 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 | % | ±15 |
| Short circuit, instantaneous | ||||
| YCW1-2000 | YCW1-3200 | YCW1-6300 | ||
| Adjust scope Ir1 Ir3 | 1In-50kA | 1In-75kA | 1In-100kA | |
| Accuracy | % | ±15 | ±15 | ±15 |
| Load monitoring output | YCW1-2000~6300 | |
| Load adjust scope Ic1 | (0.2-1)In (pole difference 2%) | |
| Delay time tc1 | tr1×0.5 | |
| Load adjust scope Ic2 | (0.2-1)In (pole difference 2%) | |
| Delay time tc2 | tr1×0.25 (anti-time limit) | |
| Accuracy | s | 60 (set time limit) |
| % | ±10 | |
Overall and mounting dimensions
Installation and figure dimension of YCW1-2000A fixed type circuit breaker
CNC Electric Group Co., Ltd. is a non-regional enterprise group approved and registered by the National Industrial and Commercial Bureau. Under drastic market competition, we are always trying to develop the national industry and depend on technology and technique. Thus, our company has developed into one of the largest trans-regional, conglomerate and trans-national enterprises on scale and developing potentiality.
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