50LET

Applications:	Electrical, Industrial
Melting I²t:	100
Size / Dimension:	0.697" Dia x 1.032" L (17.70mm x 26.20mm)
Package / Case:	Cylindrical, Blade Terminal (Bolt)
Mounting Type:	Bolt Mount
Breaking Capacity @ Rated Voltage:	200kA
Operating Temperature:	--
Approvals:	CE, UR
Class:	--
Features:	--
Series:	LET
Response Time:	--
Voltage Rating - DC:	150V
Voltage Rating - AC:	240V
Current Rating:	50A
Fuse Type:	Cartridge
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

50LET (Leadless Electronic Fuse) is a specialty fuse that uses microprocessor technology to protect electronic circuits by measuring current and automatically opening the circuit when an overcurrent or overload condition occurs. It is an effective component for improving circuit reliability, as it offers added protection over a standard fuse in some applications. This article will discuss the electrical field of application and working principle of the 50LET fuse.

Field Of Application

The 50LET is designed for use in systems or applications that involve multiple distributed power sources, and for those applications that require a means for protecting high current, high temperature or high voltage components. Examples of such applications are electronics in industrial, automotive, computer and telecommunications systems, where failure of the component could have a catastrophic effect on system performance. The 50LET can also be used in applications where it is important to guard against false triggering of the fire protection system, such as in fire alarms or in systems using multiple low-voltage components.

Working Principle

The 50LET fuse is based on a microprocessor-controlled design that uses state-of-the-art digital signal processing technology to monitor and react to current levels. When an overcurrent or overload condition occurs, the resistor-based sensing element detects the sudden increase in current and the microprocessor sends a signal to the fuse\'s control circuit, which then automatically opens the circuit to stop the excess current flow. The 50LET has three distinct operating stages: alarm, trip and reset. The fuse continuously monitors current levels and if the current exceeds the alarm levels, the alarm stage is triggered and a warning is displayed. If the excess current persists, a trip occurs and the power is immediately and automatically shut off. The reset stage occurs when the current falls within a safe level. The 50LET can be used as either a circuit breaker or a thermal fuse. As a circuit breaker, the 50LET can be used to shut off power if an overload or short circuit occurs. As a thermal fuse, the 50LET can be used to protect against excessive temperatures, as it can detect the temperature of the load and automatically open the circuit if the temperature exceeds a certain level. In addition to the safety benefits, the 50LET also offers a number of other advantages, such as low power consumption, ease of installation, environmental suitability and flexibility. The 50LET has been specifically designed to be easy to use and install, and can fit into most standard-sized fuse blocks. It is also light weight and has waterproofing features, making it suitable for use even in the harshest environments.

Conclusion

The 50LET fuse is a specialty component designed to protect electronics against overcurrents, overloads and excessive temperatures. This fuse is ideal for use in applications where critical reliability and safety are paramount, such as in industrial, automotive, computer and telecommunications systems. The 50LET has numerous advantages, including low power consumption, ease of installation, environmental suitability and flexibility.

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