R21-1-20.0A-33849-3-V

Series:	SNAPAK®
Part Status:	Active
Lead Free Status / RoHS Status:	--
Breaker Type:	Magnetic (Hydraulic Delay)
Moisture Sensitivity Level (MSL):	--
Current Rating:	--
Number of Poles:	2
Actuator Type:	Rocker
Illumination:	--
Illumination Voltage (Nominal):	--
Mounting Type:	Panel Mount

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The R21-1-20.0A-33849-3-V circuit breaker is a versatile device used in many industries. Its capabilities range from providing protection against overcurrents, short circuits and ground faults, to providing isolation and power control. Its small size and wide operating temperature range make it ideal for a variety of different applications. In this article we will explore the application field and working principle of the R21-1-20.0A-33849-3-V circuit breaker.A circuit breaker is an electrical component which is used to detect and protect against excessive current in an electrical circuit. They are commonly installed in circuit panels or fuse boxes, and are often connected to an alarm system to notify operators of a problem. Circuit breakers can be divided into two main categories; those that are installed in the main service panel, and those that are installed separately in individual circuits. The R21-1-20.0A-33849-3-V is a low-amp circuit breaker, typically used as a residual current device (RCD) or residual source device (RSD). In the RSD form it is used as a circuit isolation device to disconnect a circuit in the event of an overcurrent or short circuit. This is typically used on high-current applications such as pumps, motors, welders and hoists. It is also used in commercial settings such as hospitals and office buildings, where it acts to protect the occupants and equipment from damaging power surges or accidental contact with electrical equipment. The R21-1-20.0A-33849-3-V circuit breaker operates on the principle of magnetic field detection. When current is flowing through a circuit, a magnetic field is generated around it. If this magnetic field exceeds the threshold voltage of the circuit breaker, then the circuit breaker will automatically trip and disconnect the power. This is done by a solenoid which is connected to a switch. When the solenoid is energized, it pulls the switch lever which opens the circuit. The R21-1-20.0A-33849-3-V circuit breaker is designed to have a fast response time, which means it is able to rapidly detect excessive currents and cut-off power in a fraction of a second. This makes it an invaluable tool for preventing equipment damage and averting potential disasters.Due to its small size, the R21-1-20.0A-33849-3-V circuit breaker is ideal for installations where space is limited. It also has a wide operating temperature range, from zero to 70 degrees celsius, which makes it suitable for use in environments where temperatures can fluctuate.As mentioned, the R21-1-20.0A-33849-3-V circuit breaker is a versatile instrument, used in both residential and commercial settings. In residential settings, it can be used to protect individual circuits and prevent overloading of the main service panel. In commercial settings, it can be used to protect medium-voltage circuits and to provide isolation and power control.In conclusion, the R21-1-20.0A-33849-3-V circuit breaker is a small and versatile device that combines protection with convenience. As a residual current or residual source device, it can quickly disconnect circuits to prevent damage and accidents, while its wide operating temperature range, fast response time and small size make it ideal for many different applications.

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