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China TANW1 Series Intelligent Universal LV Circuit Breaker - Reliable Suppliers & Factory Solutions for Overload 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 (0.4s delay, O-CO) | Rated ultimate short-circuit breaking capacity Icu | Rated operating short-circuit breaking capacity Ics | Rated short-time withstand current Icw1s (0.4s delay, 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 | 0.9Ln | 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
The operational performance of a circuit breaker is 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
What are the primary applications of the TANW1 series circuit breaker?
It is designed for AC 50/60Hz distribution networks with rated voltages of 400V or 690V and rated currents from 630A to 6300A. It protects circuits and power equipment against overload, under-voltage, short circuit, and single-phase grounding faults.
Which industry standards does the TANW1 circuit breaker comply with?
The TANW1 series circuit breaker complies with international standards such as IEC60947-2 and national standards like GB14048.2 for low-voltage switchgear and control equipment.
What are the installation and operational classifications of these breakers?
They are classified by installation method into Fixed type and Withdrawable type, and by operation method into Electric operation and Manual operation (used mainly for maintenance and repair).
What are the standard ambient conditions required for standard installation?
The ambient temperature must remain between -5 ℃ and +40 ℃ (with a 24-hour average not exceeding +35 ℃), installation altitude should not exceed 2000m, and the vertical inclination of the breaker must not exceed 5°.
How does operating at altitudes above 2000m affect the electrical performance?
As altitude increases, correction factors must be applied. For example, at an altitude of 5000m, the power-frequency withstand voltage is corrected to 2000V, the working current coefficient adjusts to 0.82, and the short-circuit breaking capacity factor adjusts to 0.63.
What is the mechanical and electrical lifespan (operating cycles) of the TANW1 series?
The total number of operating cycles depends on the shell level: 5000 cycles for the 2000A shell, 3000 cycles for the 3200A and 4000A shells, and 2000 cycles for the 6300A shell.