The GE TKMA31000 is a 3-pole thermal magnetic molded case circuit breaker. It is designed to provide reliable overcurrent and short-circuit protection in electrical distribution systems. The TKMA31000 is capable of withstanding high currents and voltages, making it suitable for a wide range of industrial and commercial applications. It can effectively cut off the circuit when abnormal conditions such as overload, short circuit and undervoltage occur, protecting the safety of power equipment and the entire power system. With its robust design and advanced technology, the GE TKMA31000 ensures stable and reliable operation in different working environments.
2. Product Parameters
| Parameter | Details |
|---|---|
| Voltage | 240/480/600 VAC |
| Current | 1000 A |
| Poles | 3 |
| Phase | 3 |
| Interrupting Rating | 42 kA at 240 VAC, 30 kA at 480 VAC, 22 kA at 600 VAC |
| Frame Type | TKM |
| Connection Type | Bolt-on |
| Protection | Thermal magnetic |
| Functions | Long time and instantaneous trip |
| Terminal Connection | Load side lug |
| Temperature Rating | 40 °C |
3. Advantages and Features
- High Interrupting Capacity: The TKMA31000 has an excellent interrupting capacity, which can quickly and effectively cut off the circuit when a short circuit fault occurs. For example, at 480 VAC, it can interrupt a current of up to 30 kA, ensuring the safety of the power system and preventing equipment damage and potential fires.
- Reliable Thermal Magnetic Protection: It combines thermal and magnetic protection functions. The thermal element can respond to overload currents, and the magnetic element can quickly trip in the event of a short circuit, providing comprehensive protection for the circuit. This dual protection mechanism significantly reduces the risk of false tripping and improves the reliability of the circuit breaker.
- Easy Installation: With a bolt-on connection type, the TKMA31000 is easy to install and maintain. It can be quickly and firmly installed on the distribution panel, saving installation time and labor costs.
4. Application Areas and Application Cases
- Application Areas: The GE TKMA31000 is widely used in industrial, commercial and residential power distribution systems. It can be found in factories, shopping malls, office buildings, hospitals and other places, providing reliable power protection for various electrical equipment and circuits.
- Application Case: In a large factory, the GE TKMA31000 is used in the main power distribution cabinet to protect the power supply system of the entire factory. Once, due to a short circuit in a production line, the current suddenly increased sharply. The TKMA31000 quickly detected the fault and tripped within milliseconds, cutting off the power supply to the faulty circuit in time and preventing the short circuit from spreading to other parts of the factory, thus avoiding serious equipment damage and production stoppages.
5. Comparison with Competitors
Compared with some similar products in the market, the GE TKMA31000 has a relatively higher interrupting rating at 240 VAC and 600 VAC. While some competing products may have an interrupting rating of 35 kA at 240 VAC and 20 kA at 600 VAC, the TKMA31000 can reach 42 kA at 240 VAC and 22 kA at 600 VAC. In addition, its thermal magnetic protection is more sensitive and accurate, which can better protect the circuit and equipment from damage.
6. Selection Suggestions
- Load Requirements: When selecting the TKMA31000, make sure that its current rating of 1000 A can meet the maximum load current requirements of your power distribution system. Consider the total power consumption of all electrical equipment in the system and possible future expansion needs.
- Voltage Compatibility: Ensure that the voltage rating of the circuit breaker (240/480/600 VAC) is compatible with the voltage level of your power supply system. Mismatched voltages can lead to improper operation or even damage to the circuit breaker.
- Installation Space: Take into account the installation space. The TKMA31000 has dimensions of 8 1/4 inches wide x 5 1/2 inches deep x 15 1/2 inches high, so make sure there is enough space in the distribution cabinet or installation location.
7. Precautions
- Electrical Safety: When installing and operating the TKMA31000, always follow electrical safety regulations. Ensure proper grounding to prevent electric shock and other safety hazards. Wear appropriate personal protective equipment when working on electrical equipment.
- Regular Inspection: Periodically inspect the circuit breaker for signs of wear, overheating or other damage. Check the connection points to ensure they are tight and free of corrosion. If any problems are found, repair or replace the circuit breaker in a timely manner.
- Environmental Conditions: Avoid installing the TKMA31000 in environments with high humidity, dust or corrosive gases, as these can affect its performance and service life. If the installation environment is harsh, consider using appropriate protection measures.
