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Intelligent Universal LV Circuit Breaker TANW1 Series - Top China Suppliers and Factory for Reliable Protection
General
The TANW1 series intelligent universal low voltage circuit breaker (hereinafter referred to as the circuit breaker) is suitable for distribution networks with AC 50/60Hz, rated voltages of 400V, 690V, and rated currents of 630A~6300A (four pole suitable for three-phase four wire or three-phase five wire systems), used to distribute electrical energy and protect lines and power equipment from overload, under-voltage, short circuit, single-phase grounding and other faults. Circuit breakers have intelligent protection functions, precise selective protection, can improve power supply reliability and avoid unnecessary power outages. It can be equipped with an open communication interface for four remote control to meet the requirements of the distribution automation system. This circuit breaker is not equipped with an intelligent controller or CT & PT, and can be used as an isolator, marked as 
.
Standards
The circuit breaker complies with standards such as IEC60947-2 and GB14048.2 "Low voltage switchgear and control equipment - Low voltage circuit breakers".
Type and Designation
Classification
-
Classified by installation method:
- Fixed type
- Withdrawable type
-
Classified by operation method:
- Electric operation
- Manual operation (for maintenance and repair)
Service Condition
- Surrounding air temperature: The upper limit value shall not exceed +40 ℃, the lower limit value shall not be lower than -5 ℃, and the average value over 24 hours shall not exceed +35 ℃.
- The altitude of the installation location shall not exceed 2000m.
- Atmospheric conditions: The relative humidity of the atmosphere does not exceed 50% when the ambient air temperature is +40 ℃. At lower temperatures, there can be higher relative humidity. The average maximum relative humidity in the wettest month is 90%, and the average minimum temperature in that month is +25 ℃, taking into account the condensation that occurs on the surface of the product due to temperature changes.
- Pollution level: Level 3
- Protection level: IP3X
- Installation category: Circuit breakers with a rated working voltage of 690V and below, as well as under-voltage release devices and primary coils of power transformers, are used for installation category IV; auxiliary circuits and control circuits are installed category III.
- Installation conditions: The circuit breaker should be installed according to the requirements of this manual, and the vertical inclination of the circuit breaker should not exceed 5°.
- This product has passed special tests such as low temperature resistance (-40 ℃), high altitude (4500m), and salt resistance.
Note: For altitudes exceeding 2000m, temperatures below -10 ℃ or above +40 ℃, and other special usage locations, users should communicate and negotiate with our company.
Technical data and performance
- Rated current of circuit breaker
| Shell level rated current Inm (A) | Rated current In (A) |
|---|---|
| 2000 | 630, 800, 1000, 1250, 1600, 2000 |
| 3200 | 2000, 2500, 2900, 3200 |
| 4000 | 3200, 3600, 4000 |
| 6300 | 4000, 5000, 6300 |
- Rated short-circuit breaking capacity and short-time withstand current of circuit breaker
| Shell level rated current Inm (A) | 400V (kA) | 690V (kA) | ||||
|---|---|---|---|---|---|---|
| Rated ultimate short-circuit breaking capacity Icu | Rated operating short-circuit breaking capacity Ics | Rated short-time withstand current Icw1s (delay 0.4s, O-CO) | Rated ultimate short-circuit breaking capacity Icu | Rated operating short-circuit breaking capacity Ics | Rated short-time withstand current Icw1s (delay 0.4s, O-CO) | |
| 2000 | 80 | 50 | 50 | 50 | 40 | 40 |
| 3200 | 100 | 80 | 80 | 65 | 65 | 50 |
| 4000 | 100 | 80 | 65/75 (MCR) | 75 | 65 | 50/65 (MCR) |
| 6300 | 100 | 100 | 85/100 (MCR) | 85 | 75 | 65/75 (MCR) |
- The derating coefficient of circuit breakers at different ambient temperatures
| Ambient temperature | +40℃ | +45℃ | +50℃ | +55℃ | +60℃ | |
|---|---|---|---|---|---|---|
| Allow continuous operating current | 2000A | 1In | 0.95In | 0.9In | 0.85In | 0.8In |
| 3200A | 1In | 0.92In | 0.86In | 0.80In | 0.74In | |
| 4000A | 1In | 0.93In | 0.87In | 0.81In | 0.75In | |
| 5000A | 1In | 0.94In | 0.88In | 0.82In | 0.76In | |
| Note: Relationship between ambient air temperature and allowable continuous operating current (based on the measured temperature at the inlet and outlet of the circuit breaker reaching 110 ℃ under various environmental temperature conditions) | ||||||
- When the altitude of the circuit breaker exceeds the applicable working environment by 2000m, the electrical performance correction factor
| Altitude (m) | 2000 | 3000 | 4000 | 5000 |
|---|---|---|---|---|
| Power-frequency withstand voltage (V) | 3500 | 3150 | 2500 | 2000 |
| Correction coefficient for working current | 1 | 0.93 | 0.88 | 0.82 |
| Correction factor for short-circuit breaking capacity | 1 | 0.83 | 0.71 | 0.63 |
- Operational performance of circuit breakers (represented by the number of operating cycles)
| Shell level rated current (A) | No. of power on operation cycles | No. of non powered operation cycles | Total |
|---|---|---|---|
| 2000 | 500 | 4500 | 5000 |
| 3200, 4000 | 500 | 2500 | 3000 |
| 6300 | 500 | 1500 | 2000 |
Appearance and installation dimensions
The installation dimensions of fixed circuit breakers with shell current of 2000A and 3200A are shown in figures 1 and 2 for their external dimensions.
Figure 1 TANW1-2000/3(4)
Figure 2 TANW1-3200/3(4)
The installation dimensions of the withdrawable type circuit breaker with shell current of 2000A and 3200A are shown in figures 3 and 4 for their external dimensions.
Figure 3 TANW1-2000/3(4)
Figure 4 TANW1-3200/3(4)
The installation dimensions of the withdrawable type circuit breaker with a current of 4000A on the shell frame are shown in figures 5 and 6 for their external dimensions.
Figure 5 TANW1-4000
Figure 6 TANW1-4000/4
The installation dimensions of the withdrawable type circuit breaker with a current of 6300A (except for the rated current of 6300A at level 4) on the shell frame are shown in figures 7 and 8 for their external dimensions.
Figure 7 TANW1-6300, 6300/4, In=4000, 5000A
Figure 8 TANW1-6300, In=6300A
The installation dimensions of the withdrawable type circuit breaker with a rated current of 6300A for 4 poles in a shell current of 6300A are shown in figure 9 for their external dimensions.
Figure 9 TANW1-6300/4, In=6300A
Frequently Asked Questions (FAQ)
What are the main applications of the TANW1 series circuit breaker?
It is designed for distribution networks operating at AC 50/60Hz, with rated voltages of 400V and 690V, and rated currents from 630A to 6300A. It distributes electrical energy and protects systems against overload, under-voltage, short circuits, and single-phase grounding faults.
Which standards does the TANW1 circuit breaker comply with?
The TANW1 series circuit breaker complies with international and domestic standards, specifically IEC60947-2 and GB14048.2.
What are the classification options for installation and operation?
For installation, it is classified into Fixed type and Withdrawable type. For operation, it offers Electric operation and Manual operation (mainly used for maintenance and repair).
How does high altitude affect the circuit breaker's performance?
For altitudes above 2000m up to 5000m, the electrical performance must be corrected. For example, at 5000m, the power-frequency withstand voltage is corrected to 2000V, the working current correction factor is 0.82, and the short-circuit breaking capacity factor is 0.63.
What are the standard ambient temperature limits for installation?
The standard surrounding air temperature should be between -5 ℃ and +40 ℃, with the average temperature over 24 hours not exceeding +35 ℃. Special negotiations are required for installations outside this range.
Can this circuit breaker be used as an isolator?
Yes. When the circuit breaker is not configured with an intelligent controller or CT & PT, it can be utilized as a standard isolator.