1.Higher electrical lifespan
2.More durable and better performance
3.With insulation function
4.Overload,under-voltage,short-circuit and single-phase grounding protection
5.Standard:IEC60947-2
1.Temperature: no more than +40℃, no less than -5°C, and average day temperature no more than +35°C.If customer requires condition of higher than +40°C ,or lower than -25°C, it should be consulted with manufacture
2.Installation location attitude no more than 2000m
3.Humidity: when the temperature at +40°C, it no more 50%
The higher humidity is accepted at the lower temperature. The average humidity of month should no more than 90%, and the average temperature of month should not lower than +25°C.The condensation should be taken care when the humidity change.
4.Protection class:IP20
5.Using type: B type
6.Pollution type: 3 level
7.Installation type:Type of circuit breaker main circuit, under voltage release, primary coil of power transformer is installation Ⅳ;type of Auxiliary circuit and control circuit installation is Ⅲ
| Model No. | RDW1-1000 | RDW1-2000 | RDW1-3200 | RDW1-4000 | RDW1-6300 | |||||||
| Rated current (A) | 200,400,630,800, 1000 |
630,800,1000, 1250,1600,2000 |
2000,2500,2900,3200 | 2900, 3200,3600,4000 |
4000,5000,6300 | |||||||
| Neutral rated current ln (A) | 100%ln | 100%ln | 100%ln | 100%ln | 50%ln | |||||||
| Rated operating voltage (V) | AC 400 | AC 400/690 | ||||||||||
| Frequency (Hz) | 50/60Hz | |||||||||||
| Number of poles | 3P/4P | |||||||||||
| Rated impulse withstand voltage Uimp(Kv) | AC 8 | AC 12 | ||||||||||
| Rated isolation voltage Ui(V) | AC 690 | AC 1000 | ||||||||||
| Power frequency withstand voltage(V) 1min | 1890 | 2200 | ||||||||||
| Rated ultimate short circuit breaking capacity (Icu) kA | AC400V | 42 | 80 | 100 | 100 | 120 | ||||||
| AC690V | - | 50 | 65 | 85 | 85 | |||||||
| Rated operating short circuit breaking(Ics) | AC400V | 32 | 65 | 80 | 80 | 100 | ||||||
| AC690V | - | 50 | 65 | 65 | 75 | |||||||
| Rated withstand current for short-time(Icw) |
AC400V | 20/30(0.5S) | 65 | 80 | 80 | 100 | ||||||
| AC690V | - | 40 | 50 | 50 | 75 | |||||||
| Operation life(times) 2500A below 1 time/3min;Above 2500A 1time/6min | Electrical life | 7000 | 6500 | 3000 | 3000 | 1500 | ||||||
| Mechanical life | 15000 | 15000 | 10000 | 10000 | 5000 | |||||||
Protection characteristics and functions of intelligent controller
H Type intelligent release
In addition to having all the functions of Type M, it also has an RS485 standard communication interface (the standard configuration is Modbus communication protocol), which can communicate in half-duplex or full-duplex. Through the communication interface, a local system with a master-slave structure (hereinafter referred to as the system) can be formed.1-2 computers are used as the master station, and a number of intelligent circuit breakers or other communicable components are used as slaves, The system network structure is shown in the figure below.
For the circuit breaker unit, the system can realize the long-distance "four remote" function; monitoring of various power grid parameters and operating parameters monitoring of the current operating status of the intelligent circuit breaker, adjustment and download of various protection limit parameters, combined and sub-operation control of the intelligent circuit breaker, etc. The system is suitable for the construction and transformation of various power stations, power plants, small and medium-sized substations, industrial and mining enterprises, buildings and other distribution control systems.
For example: the connection diagram of the Modbus communication protocol interface is as follows:
Sensor hardware structure of data communication network system
The inteligent circuit breaker provides a standard RS485 communication interface, which is drawn from the No.10 and No.11 outlets of the outlets of the circuit breaker; the communication medium connected to the system: Class A shielded twisted pair.
Network main characteristics
Two-way serial data transmission method, the product can provide a variety of communication protocol methods: Modbus, profibus-DP,DeviceNet,CAN, etc.The stict master-slave method, that is, the master station is the initiator and controller of the communication,and the slave station can only communicate with the master station, not directy with other saves.Communicaion baud rate 4.8/9.6/38.4/76.8/153.6 kbps is adiustable. The default value is 9.6 kbps, and the communication distance is 1.2km.
Monitoring software
The configuration software can realize the configuration and application of the required monitoring and management software according to different engineering requirements, and can realize operation monitoring operations and a variety of daily management functions.
System function
Remote control refers to the object that controls the slave system of each slave circuit breaker in the system through the master station computer.Click the remote control button with the mouse, and the system will provide the corresponding running state. After the operator enters the operation password, the remote control "close" or "open" instruction can be issued. The system transmits the instruction to the corresponding circuit breaker slave station, and after receiving the instruction, the slave station will operate the remote control results such as breaking, closing and storing energy according to the established timing.
Remote adjusting
Remote adjustment refers to setting the protection setting value of the slave station through the master station computer, selecting the corresponding object on the surface of the setting value stored in the master station computer, clicking the remote adjustment button with the mouse, the system will provide the protection setting value table of all the protection setting values of the corresponding object.After the operator enters the password, the required parameter can be selected from the parameter table, and then clicking the corresponding button, the master station will download the parameter to the remote adjustment result, and the slave station will modify its own protection setting value after receiving the instruction.
Remote monitoring
Remote adjustment refers to setting the protection setting value of the slave station through the master station computer, selecting the corresponding object on the surface of the setting value stored in the master station computer, clicking the remote adjustment button with the mouse, the system will provide the protection setting value table of all the protection setting values of the corresponding object, After the operator enters the password, the required parameter can be selected from the parameter table, and then clicking the corresponding button, the master station will download the parameter to the remote adjustment result, and the slave station will modify its own protection setting value after receiving the instruction.
The fault record can record the following fault parameters:
The current values of phase A, B, C and N, voltage values of UAB, UBC and UCA, fault type and fault action at the time of fault are recorded in the fault database.
The current real-time current and voltage of each sub-station are displayed by computer bar graph and absolute value table, and the running status of each node is displayed by real-time curve.
Remote communication
Remote messaging refers to checking the slave station's model, closed and open status, protection settings, and the operation and other information of the slave station through the master station computer.The parameters submitted by the slave station circuit breaker to the upper computer mainly include:switch model,switch status (closed/of,),fault information, alarm information, various protection settings,etc.
Other function of system
In addition to the four remote operation control functions,the system can also perform a variety of management functions: accident alarm(information screen, screen promotion, event printing, sound alarm), event recording, maintenance listing, shift handover management, load trend analysis, multiple report printing, etc.
L Type intelligent controller
The L-type controller adopts a coded switch tuning method, which has four-stage protection characteristics such as overload long delay, short circuit short delay, instantaneous, and grounding. It has functions such as fault status and load current beam indication but it is displayed digitaly, and its functions are not as complete as the M and H types. The setting value is graded adjustment which is for users to choose in general situations.
The operating voltage and required functions of the excitation tripper, under-voltage tripper, electric operating mechanism, energy release (closing) electromagnet, and intelligent controller of the circuit breaker are shown in Table 1.
| Item(Table 1) | AC(50Hz) | DC | ||||
| 220V | 380V | 110V | 220V | |||
| Shunt release | 24VA | 36VA | - | - | ||
| Undervoltage release | 24VA | 36VA | 24W | 24W | ||
| Closed electromagnet | 24VA | 36VA | 24W | 24W | ||
| Motor operation mechanism |
Rated current of frame size |
2000A | 85VA | 85VA | 85W | 85W |
| 3200A | 125VA | 125VA | 125W | 125W | ||
| 6300A | 150VA | 150VA | 150W | 150W | ||
| Power supply of Intelligent controller:AC220V,AC380V,DC220V,DC110V,power supply error ±15% | ||||||
Note: The reliable operating voltage range of the shunt release is 70%~110%, and the closing electromagnet and operating mechanism are 85%~110%.
The performance of the undervoltage tripper of the circuit breaker is shown in Table 2
| Category(Table 2) | Undervoltage delay release | Undervoltage instantaneous release | |
| Release action time | Delay 1, 3, 5s | Instantaneous | |
| Release operating voltage value |
(30%~70%)Ue | Reliable disconnection of circuit breaker | |
| ≤ 35%Ue | Circuit breaker cannot be closed | ||
| (85%~110%)Ue | Circuit breaker can be reliably closed | ||
| Within ½ of the delay time,if the power supply voltage is restored to 85%Ue,the circuit breaker cannot be disconnected | -- | ||
Note: The delay time accuracy is +10%
Performance of auxiliary contacts
●The agreed heating current of the auxiliary contact is 6A;
●Auxiliary contact form: four sets of conversion contacts (standard configuration), please contact us for special requirements;
●Abnormal connection and breaking ability of auxiliary contacts;
●The connection and breaking capacity of the auxiliary contacts under abnormal conditions of use determined by the use is shown in the table 3
| Usage category(Table 3) | Connection | Breaking | Number of on-off operation cycles and operating frequency | ||||||
| U/Ue | I/Ie | cosΦ or T0.95 | U/Ue | I/Ie | cosΦ or T0.95 | Number of operation cycles |
Number of operation cycles per minute |
Power-on time (s) | |
| AC-15 | 1.1 | 10 | 0.3 | 1.1 | 10 | 0.3 | 10 | 6 (or the same operating frequency as the main loop) |
0.05 |
| DC-13 | 1.1 | 1.1 | 6Pe | 1.1 | 1.1 | 6Pe | |||
The connection and breaking capabilities of the auxiliary contacts under normal conditions are shown in the table 4
| Usage category(Table 4) | Connection | Breaking | ||||
| U/Ue | I/Ie | cosΦ or T0.95 | U/Ue | I/Ie | cosΦ or T0.95 | |
| AC-15 | 1 | 10 | 0.3 | 1 | 1 | 0.3 |
| DC-13 | 1 | 1 | 300ms | 1 | 1 | 300ms |
Key and lock for the disconnecting position
The circuit breaker has the "Key and lock for the disconnecting position" accessory (according to the order requirements: three locks and two keys, two locks and one key, one lock and one key, etc.). Can lock the circuit breaker in the disconnected position. At this time, no matter whether the closing button or the energy release (closing) electromagnet is used, the circuit breaker cannot be closed.
Structure overview (see Figure 5 for the structure of the circuit breaker)
1.The fixed circuit breaker is mainly composed of a contact system, an intelligent controller, a manual operating mechanism, a motor operating mechanism,and a mounting plate.
2.The drawer type circuit breaker is mainly composed of a contact system, an intelligent controller, a manual operating mechanism, and a drawer base with a motor operating mechanism.
3.The circuit breaker is arranged in a three-dimensional manner, which has the characteristics of compact structure and small size,the contact system is enclosed in an insulating base plate, and each phase of the contact is also separated by an insulating plate to form a small chamber, and the intelligent controller, manual operating mechanism, and electric operating mechanism are arranged in front of it in turn to form their own independent units.If one of the units is broken, it can be removed and replaced with a new one.
4.The drawer type circuit breaker is composed of a plug-in circuit breaker and a drawer base. The guide rail in the drawer base can be pulled in and out, and the circuit breaker inserted is located on the guide rail to get out of the drawer, and the main circuit is connected by the insertion connection between the busbar inserted into the circuit breaker and the bridge contact on the drawer base.
5.The drawer type circuit breaker has three working positions: the "connection" position, the "test" position, and the "separation" position. The position change is achieved by screwing in or out of the handle. The indication of the three positions is displayed by the pointer on the beam of the low base of the drawer base.
6.When in the "connection" position, both the main circuit and the secondary circuit are turned on; when in the "test" position,the main circuit is disconnected and separated by insulating partitions. Only the secondary circuit is turned on, and some necessary action tests can be performed, when in the "separation" position, the main circuit and the secondary circuit are all disconnected. Moreover, the drawer type circuit breaker has a mechanical interlocking device. The circuit breaker can only be closed at the connection position or the test position.and the circuit breaker cannot be closed at the intermediate position between the connection and the test.
The interlocking mechanism of the circuit breaker (applicable to drawer type and fixed type) is shown in Figure 6. The user can use the interlocking mechanism separately to convert two or three units.
Lever interlock (for the same cabinet)
Note: Three vertically mounted circuit breakers with a lever interlock.
If two circuit breakers interlocks only need to remove the top circuit breaker.
Soft interlock (Available for horizontal and vertical, suitable for between adjacent cabinets or in the same cabinet)
Grounding fault protection method
The controller is divided into two different protection methods, one is the difference type (T), and the controller protects according to the sum of the three-phase current and the current vector on the neutral line. According to the number of poles of the circuit breaker, it is divided into three forms: 3PT, 4PT., and (3P+N)T, which are shown in the figure below (a. b, and c). The other method is ground current type (W). The controller directly takes the output current signal of an additional current transformer between the neutral point of the main power supply and ground for protection. The transformer is between the N line and the PE line, see Figure d below.
External grounding single-phase grounding protection device (see Figure 7)
An external transformer (neutral pole transformer or around current transformer) is provided to the user as an accessory.The user sets it into the busbar by himself, and connects the connection (length is 2m) to the secondary terminal blocks #25 and #26 of the circuit breaker
Phase partition
Used to increase the insulation strength between busbars (for drawer type).
1.Wiring board 2.Busbar 3.Fixed board 4.Transformer
| Inm(A) | a | b | c | d |
| 2000 | 60 | 12.5 | 34 | Φ89 |
| 3200 | 80 | 20 | 35 | Φ109.5 |
Figure 7 (B) Dimensions and installation dimensions of ground fault protection device
● RDW1-1000 3P/4P (Withdrawable type) overall dim ension and installation dimension
● RDW1-1000 3P/4P (Fixed type) Overall dimension and installation dimension
| Rated current (A) | 200, 400 | 630 | 800, 1000 | Remark |
| Busbar thickness H (mm) | 6 | 8 | 10 | — |
| QTY n | 6 | 12 | 12 | 3P |
| 8 | 16 | 16 | 4P |
● RDW1-2000 3P/4P (Withdrawable type) overall dimension and installation dimension
| In | a(mm) |
| 630~800A | 10 |
| 1000~1600A | 15 |
| 2000A | 20 |
● RDW1-2000 3P/4P (Fixed type) overall dimension and installation dimension
| In | a(mm) |
| 630~800A | 10 |
| 1000~1600A | 15 |
| 2000A | 20 |
● RDW1-3200 3P/4P (Withdrawable type) overall dimensions and installation dimensions
| In | a(mm) |
| 2000A、2500A | 20 |
| 2900A、3200A | 30 |
● RDW1-3200 3P/4P (Fixed type) overall dimensions and installation dimensions
| In | a(mm) |
| 2000A、2500A | 20 |
| 2900A、3200A | 30 |
● RDW1-4000 3P (Withdrawable type) overall dimension and installation dimension
● RDW1-4000 3P(Fixed type) overall dimension and installation dimension
● RDW1-4000 4P (Withdrawable type) overall dimension and installation dimension
● RDW1-6300 3P/4P 4000A/5000A (Withdrawable type) overall dimension and installation dimension
| In | a(mm) |
| 4000A | 20 |
| 5000A | 30 |
● RDW1-6300 4P 6300A (Withdrawable type) overall dimension and installation dimension
When used with the complete sets of cabinet, the door frame dimension and its installation dimension to see the below diagram,and use ST2.9×9.5-F-H to fixed when installation
| Frame size Imm(A) | a(mm) | b(mm) | c(mm) 3P | c(mm) 4P |
| 2000 | 306 | 346 | 0 | 47.5 |
| 3200 | 366 | 406 | 0 | 57.5 |
| 4000/3P | 366 | 406 | 57.5 | — |
| 4000/4P Withdrawable type | 306 | 346 | — | 206.5 |
| 6300 | 366 | 406 | 189(4000/5000 3P) | |
| 6300 | 366 | 406 | 246.5(4000/5000 4P、6300 3P) | |
RDW1-2000~6300 Door frame hole-opening dimension and installation dimension
● RDW1-1000 Withdrawable type/Fixed type door frame hole-opening dimension and installation dimension
RDW1-1000 Fixed type door frame hole-opening dimension
RDW1-1000 Withdrawable type door frame hole-opening dimension
The specification and the quantity of the connection busbar to see below table (for reference）
| Rated current (A) | External busbar specification(mm) | QTY for each pole | Rated current (A) | External busbar specification(mm) | QTY for each pole |
| 630 | 40×5 | 2 | 2900 | 100×10 | 6 |
| 800 | 50×5 | 2 | 3200 | 100×10 | 4 |
| 1000 | 60×5 | 2 | 3600 | 100×10 | 5 |
| 1250 | 80×5 | 2 | 4000 | 100×10 | 5 |
| 1600 | 100×5 | 2 | 5000 | 100×10 | 6 |
| 2000 | 100×5 | 3 | 6300 | 100×10 | 8 |
| 2500 | 100×5 | 4 | Note: When use 6300/4000A, it's better to use 5 pcs of 100×10 for each pole | ||
