400LMMT

Introduction

400LMMT application field and working principle is an important topic in Electrical, Specialty Fuses. 400LMMT (Latching Miniature Motorized Terminal) is a specialized latching blade-style fuse designed for high power applications and arc welding. The 400LMMT provides a reliable and reliable, self-resetting protection for high current circuits. A 400LMMT is a latching blade type fuse with a motorized mechanism that enables it to automatically reset following an overload or short circuit.

Features and Benefits of 400LMMT Fuse

The 400LMMT fuse provides a high current rating of up to 400A continuous and 600A peak. It also offers an adjustable current range of 30A-600A. The fuse has an adjustable voltage range of 0.3V-600V, which can be used in various applications. In addition, it offers a wide temperature range of -40°C to +105°C.

In addition to providing reliable protection, the 400LMMT fuse has the following advantages:

• Robust and long-lasting construction
• Reduced wiring time due to motorized operation
• Can be manually reset to restore power
• Generates an alarm signal on overload or short circuit
• Can be mounted in any orientation
• Stable under extreme temperatures

Application of 400LMMT Fuse

The 400LMMT fuse is suitable for use in many high current applications, including electric motors, Variable Frequency Drives (VFDs), rectifiers, welders and wind turbines. It is also used in industrial and commercial applications such as switchgear, machine tools and UPS systems.

Working Principle of 400LMMT Fuse

The 400LMMT fuse operates using a unique dual-torsion spring mechanism. When the circuit over- current or short circuit occurs, the internal mechanism senses the overload, and a linear motor begins to rotate, allowing the two spring arms to move forward and insert the fuse link to the circuit. This process is reversed to reset the fuse link to restore protection.

When an overload or short circuit occurs, the 400LMMT fuse produces an alarm signal to indicate that the protective device has been triggered. The fuse can be manually reset after the cause of the fault is identified and removed.

Conclusion

In conclusion, the 400LMMT fuse is a specialized latching blade-style fuse designed for high power applications and arc welding. It provides reliable protection, self-resetting capabilities, adjustable current and voltage settings, extensive temperature range, and an alarm signal for overload or short circuit conditions. This fuse is suitable for use in electric motors, transformers, rectifiers, welders, UPS systems, and many other high current applications.