CB211-30

Series:	CB211
Part Status:	Active
Lead Free Status / RoHS Status:	--
Breaker Type:	--
Moisture Sensitivity Level (MSL):	--
Current Rating:	30A
Voltage Rating - DC:	14V
Number of Poles:	1
Actuator Type:	Automatic Reset
Illumination:	--
Illumination Voltage (Nominal):	--
Mounting Type:	Holder

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CB211-30 Application Field and Working PrincipleCircuit breakers are a critical aspect of any electrical circuit. They serve to protect circuits from hazardous conditions and perform critical functions such as overcurrent protection, line isolation, and power supply switching. CB211-30 circuit breakers are a type of subpanel and branch circuit breaker that are widely used in residential, commercial, and industrial electrical systems.CB211-30 circuit breakers are single-pole, thermal-magnetic circuit breakers rated for 30 amperes (A) at 240 volts (V). They meet the UL 489 standard for mechanical and electrical performance, and are available in various configurations. The CB211-30 breakers have load terminals rated for copper or aluminum conductors and are UL-listed terminals, recognized by the National Electrical Code.The main difference between the standard circuit breakers and CB211-30 breakers is their thermal and magnetic protection. When an overcurrent overload occurs, the CB211-30 breakers combine both magnetic and thermal sensing elements to quickly react and trip the circuit. The magnetic element senses large overcurrents and trips within microseconds, while the thermal element senses sustained overloads and trips within milliseconds. This combination provides a much faster trip response time than standard breakers and provides better protection against dangerous overloading conditions.CB211-30 circuit breakers are designed for use in lighting, branch circuit and appliance branch circuits. Due to their small size and fast trip response, they can be used to control loads that may require greater protection such as motor control circuits, portable generators, and refrigeration equipment. They also find more widespread use in other applications such as spas, pool equipment, hot tubs, and entertainment systems.Installing a CB211-30 breaker is fairly straightforward. The breaker can be installed either in a panelboard or in branch circuit wiring. When installed in a panelboard, the breaker has to be attached to the busbar using a bracket and screws. Installing the breaker directly into branch circuit wiring requires the connection of the colored wires to the terminals of the breaker. The other end of the wires should then be connected to the load.In conclusion, CB211-30 circuit breakers are an important part of any electrical system. They provide a fast response time and reliable protection against dangerous overloading conditions. They are suitable for a variety of applications and are easy to install in either panelboards or branch circuit wiring. Their compact size and UL 489 listing make them an ideal choice for most home, commercial, and industrial settings.

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