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Topic: Earth leakage circuit breaker

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	Circuit breaker Summary
		Circuit breakers are made in varying sizes, from small devices which protect an individual household appliance up to large switchgear designed to protect high voltage circuits feeding an entire city.
		The circuit breaker's contacts are held closed by a latch and, as the current in the solenoid increases, the solenoid's pull releases the latch which then allows the contacts to open by spring action.
		Circuit breakers for larger currents are usually arranged with pilot devices to sense a fault current and to operate the trip opening mechanism.
	www.bookrags.com /Circuit_breaker (3363 words)

	Circuit breaker Information - cutler hammer circuit breaker
		Circuit surplus circuit breaker breakers are often implemented with a solenoid (electromagnet) whose strength increases as the current increases and eventually trips the circuit breaker.
		Circuit ge circuit breaker breakers for larger currents are usually arranged with pilot devices to sense a fault current and to operate the trip opening mechanism.
		The overpressure necessary for breaking is obtained by the optimal use of the thermal effect industrial circuit breaker and of the nozzle clogging effect produced whenever the cross-section of the arc significantly reduces the exhaust of gas in the nozzle.
	www.inanot.com /Ina-Electronics_Topics_C_-_Cm-/Circuit_breaker.html (3041 words)

	circuit breaker
		Circuit breakers usually work by means of magnetic-type relays or solenoids.
		When a current exceeds a fixed limit as it flows through the magnetic coil of a circuit breaker, a triggering mechanism is released, pulling the contacts apart and opening the circuit, thus preventing any more current flowing.
		Circuit breakers have many advantages; for example, they are fast acting, can be adjusted to operate at different current values, and can be easily reset.
	www.tiscali.co.uk /reference/encyclopaedia/hutchinson/m0016447.html (319 words)

	CBI -- Technology: Ground Fault Protection
		CBI Earth Leakage Protection Devices are the core balance type which monitor the difference in the current flowing in the live and neutral conductors.
		CBI earth leakage units are manufactured to operate in the tolerance band of 19 to 26 mA.
		These earth leakage units from 100 to 375 mA provide reasonable protection from the risk of electrical fires, but it should be noted that under certain circumstances a current of less than 500 mA flowing in a high resistance path is sufficient to bring metallic parts to incandescence and start a fire.
	www.cbibreakers.com /ground_fault.asp (746 words)

	NF
		Earth leakage circuit breaker is used for the protection, against electrical leakage in the circuit of 50Hz or 60Hz, rated voltage single-phase 240V, 3 phase 415V, rated current up to 60A.
		When somebody gets an electric shock or the residual current of the circuit exceeds the fixed value, the ELCB can cut off the power within the time of 0.1s automatically protecting the personal safety and preventing the equipment from the fault resulted by the residual current.
		With this function, the ELCB can protect the circuit against over load and short circuit or can be used for the unfrequent switchover of the circuit under normal conditions.
	www.china-product.com /yddq/cp6.htm (106 words)

	Circuit breaker - Wikipedia, the free encyclopedia
		Thermomagnetic circuit breakers, which are the type found in most distribution boards, incorporate both techniques with the electromagnet responding instantaneously to large surges in current (short circuits) and the bimetallic strip responding to less extreme but longer-term overcurrent conditions.
		Application of a breaker in a circuit with a prospective short-circuit current higher than the breaker's interrupting capacity rating may result in failure of the breaker to safely interrupt a fault.
		The circuit breaker is labeled with the rated current in ampere, but without the unit symbol "A".
	en.wikipedia.org /wiki/Circuit_breaker (3297 words)

	Earth Leakage Circuit Breaker (Elcb+Mcb) -- Gujarat Electronics & Controls, Ahmedabad, Industrial Products Profile, ... (Site not responding. Last check: 2007-10-14)
		Gelco high sensitive current operated earth leakage circuit breakers (ELCB+MCB) are designed to give total protection by disconnecting the supply against risk of dangerous and possibly lethal electric shocks.
		Any leakage to earth is sensed as an unbalance that creates small signal in secondary winding which is fed to a highly sensitive electronic circuit to trip the MCB.
		Leakage current setting is adjustable from 10 mA to 30 mA and from 30 mA to 100 mA.
	www.ipfonline.com /Utils/SearchedProduct.jsp?product=12040 (256 words)

	Medical Dictionary - EARTH LEAKAGE CIRCUIT BREAKER (ELCB) (Site not responding. Last check: 2007-10-14)
		The earth wire in a three wire mains supply is to conduct away any small leakage currents, and also to provide a low resistance path to earth from the case of instrument and cause a fuse to blow if a short circuit should occur inside the equipment.
		The ELCB monitors the current flowing to earth, usually by measuring the difference between the currents flowing in the live and neutral wires.
		Since the leakage current is not measured in the earth wire the same principle can be applied to a two-wire supply to a double insulated device.
	home.btconnect.com /MalcolmBrown/entries/EARTH_LEAKAGE_CIRCUIT_BREAKER__ELCB_.html (223 words)

	Earth Leakage Circuit Breaker - Products for Earth Leakage Circuit Breaker - ... (Site not responding. Last check: 2007-10-14)
		MGNL Earth leakage circuit breaker is used for the protection aga
		This moulded case circuit breaker (MCCB) is a kind of ABB type MC 9 Matching Results from Yueqing Chinyi Import & Export Trade Co., Ltd.
		DXTM mini circuit breaker is mainly suitable for overload and sho
	www.alibaba.com /productsearch/Earth_Leakage_Circuit_Breaker.html (730 words)

	Untitled Document
		It is generally known that when the circuit breakers react to other conditions except an electrical leakage, they are responding to unnecessary causes.
		When the circuit breakers in remote locations start functioning even though there is no leakage, personnel is needed in order for it to work again and there is a possibility that the service gets interrupted.
		This particular circuit breaker automatically switches on after encountering harsh environmental conditions (lightning, rain, fog, noise) that cause normal circuit breakers to interrupt the service until they are reset manually.
	www.sekie.com /customer/sugg_eng/sugg_eng.htm?PHPSESSID=ebd34e74fcb6a8bbf9c120f9a95340b9 (919 words)

	China Breaker & Protector, Breaker & Protector Catalog, China Breaker & Protector Manufacturers (Site not responding. Last check: 2007-10-14)
		DZ46NL earth leakage circuit breaker is used for the protetsion, against eletsrical leakage in the circuit of 50Hz or 60Hz, rated voltage single-phase 240V, 3 phase 415V, rated current up to 60A, When somebody gets an eletsric shock or the...
		It is to open a circuit automatically in the case of an earth leakage fault between phase and earth and meutral greater or equal to 0mA, 30mA, 100mA, 300mA, or 500mA; It is used in domestic, commercial and industrial installatioms.
		EARTH LEAKAGE CIRCUIT BREAKER WGL-103 is suitable for the circuit of AC 50/60Hz, rated voltage 250V, and rated current up to 30A, It can cut off the circuit immediately on the occasion of shock hazard and fire caused by earth leadage.
	www.made-in-china.com /catalog/item999i122/Breaker-Protector-63.html (503 words)

	Earth leakage circuit breaker - Wikipedia, the free encyclopedia
		The term Earth leakage circuit breaker (ELCB) is often incorrectly used to describe its modern counterpart the Residual-current device (RCD).
		An earth leakage circuit breaker (ELCB) is a device with two earth terminals used to directly detect currents leaking to earth from an installation and cut the power.
		They may be tripped by external voltages on something connected to the earthing system such as metal pipes, a TN-S earth or a TN-C-S combined neutral and earth.
	en.wikipedia.org /wiki/Earth_leakage_circuit_breaker (206 words)

	Residual-current device - Wikipedia, the free encyclopedia
		A residual current device (RCD), or residual current circuit breaker (RCCB), is an electrical wiring device that disconnects a circuit whenever it detects that the flow of current is not balanced between the phase ("hot") conductor and the neutral conductor.
		One exception is the case of a TT earthing system where the earth loop impedance may be high, meaning that a ground fault might not cause sufficient current to flow to trip an ordinary circuit breaker or fuse.
		The problem with those of the circuit breaker type was that of many false trips due to the poor alternating current characteristics of 120 volt insulations, especially in circuits having longer cable lengths.
	en.wikipedia.org /wiki/Residual-current_device (1783 words)

	Eaton Electric - Alamat
		The Alamat electronic earth leakage circuit-breaker is a miniture circuit-breaker with an integrated earth-fault protection unit.
		protection against earth leakage currents As a result, any fault that occurs is restricted to the associated consumer group.
		Alamat is provided with an electronic earth leakage protection and compared with mechanical earth leakage protection, has a number of attractive advantages: The magnitude of the operating current (10, 30, 100 and 300mA) is set in the factory with great accuracy and the values are fixed.
	www.vidivici.cz /eaton/?c=antosj_2128_2 (186 words)

	earth leakage circuit breaker Sellers, Suppliers, Exporters, Manufacturers, Factories
		DZ47LE earth leakage circuit breaker is used for the protection against electrical leakage in the circuit of 50/60HZ, rated voltage 240/425V and rated current up to 32A.
		Earth leakage circuit breaker type FIN is suitable for cutting off the fault circuit immedliately on the occasion of shock hazard or earth leakage of trunk line.
		C45L earth leakage circuit breaker is used for the protection, against electrical leakage in the circuit of 50Hz or 60Hz, rated voltage single-phase 240V three phase 415V, rated current up to 60A.
	www.fuzing.com /qrx/earth-leakage-circuit-breaker (777 words)

	China air circuit breaker / acb manufacturer and supplier, Andeli group. (Site not responding. Last check: 2007-10-14)
		Air circuit breaker is suitable for the circuit of AC 50Hz with rated voltage up to 690V and rated current up to 6300A.
		It is mainly used to distribute electric energy and protect circuit and power supply equipment from overload, under voltage, short circuit and single phase earthing with intelligentized and selective protection function, the breaker can improve the reliability of power supply and avoid unnecessary power failure.
		The breaker is applicable for power stations, factories, mines (for 690V) and modern high-buildings, especially for the distribution system of intelligentized building.
	www.andeligroup.com /product/dea_air_circuit_breakers.htm (163 words)

	Welcome to KEPCO
		Electric leakage is the flow of electricity to the ground through electrical wires due to ripped coating or bad insulation.
		Continued use of the malfunctioning earth leakage circuit breaker may cause fire or lead to injury or loss of life and property.
		The earth leakage circuit breaker should be attached to 220V electric wives with 1¨ª2W 220V and 3¨ª4W 220V/380V.
	www.kepco.co.kr /eng/customer/faq/faq_01.html (349 words)

	Medical Dictionary - EARTH LEAKAGE CURRENT METER/MONITOR (Site not responding. Last check: 2007-10-14)
		An earth leakage current monitor is designed to measure these small currents either by insertion into the protective earth path or by connection between the terminals of the equipment and earth.
		For intermittent testing the supply earth connection is interrupted and an earth leakage current meter inserted into the lead.
		For continuous monitoring it is usual to detect the difference between the current flowing in the two supply leads, as in the earth leakage circuit breaker (ELCB) commonly used on bench supplies for testing electronic apparatus.
	home.btconnect.com /MalcolmBrown/entries/EARTH_LEAKAGE_CURRENT_METER_MONITOR.html (326 words)

	elcb - Products for elcb - Manufacturers, Exporters, Suppliers, Traders, Companies, Factories
		Thus it is suitable to avoid the shock hazard and fire caused by earth leakege.
		Yueqing Lankai Electrical Co.,Ltd which is one of the earliest empolder circuit breaker and leakage circuit breaker in China.
		Founded in 1985, Wenzhou Korlen Electric Appliances Co., Ltd. is a manufacturer specializing in mini circuit breakers, AC contactors,moulded case circuit breaker and other electrical safety...
	www.ec21.com /manufacturers/elcb.html (455 words)

	Earth Leakage Circuit Breaker (MM1L) Seller, Supplier, Exporter, Manufacturer, Factory (Site not responding. Last check: 2007-10-14)
		MM1L ELCB/RCCB rated insulating voltage AC 800V is suitable for using in the circuit of AC 50Hz /60Hz, rated voltage 400V, rated working current from16A to 630A to distribute electric power and to protect the line and the equipment from being damaged due to overload, short current and under-voltage.
		It can also be used for infrequently switch and starting of motor and for motor overload, short circuit and under-voltage protections and can protect the electric appliance from dangerous fire dangerous fire caused by ground faulty current due to the damage of electric appliance insulation.
		circuit breaker, earth leakage, earth leakage circuit breaker, earth-leakage circuit breaker, ite circuit breakers, leakage circuit breaker
	www.fuzing.com /vli/001801087220/Earth-Leakage-Circuit-Breaker-MM1L (245 words)

	[SINOBAL--We Achieve Business Success!] (Site not responding. Last check: 2007-10-14)
		DZ47L,C45L earth leakage circuit breaker is used for the protection,against elecical leaka..
		The contactor is sui for using in the circuits up to rated voltage 660V AC 50Hz or 60 Hz,r..
		TO TG Moulded Case Circuti Breaker It is sui in ship or land,AC 50Hz or 60Hz rated insuat..
	www.sinobal.com /company/21_en.htm (290 words)

	Molded Case Circuit Breakers - Molded Case Circuit Breaker Manufacturers, Molded Case Circuit Breaker Suppliers, Molded ...
		Manufacturers of molded case circuit breakers, vacuum circuit breakers, air circuit breakers, main circuit breakers, laod break switch and auto station switch.
		Manufacturers and exporters of mini-circuit breaker,earth leakage circuit breaker, moulded case circuit breaker, ac, dc contactor, current transformer, fuse, relay, meter, switch, plug and sockets.
		Manufacturers and exporters of miniature circuit breaker, moulded case circuit breaker, earth leakage circuit breaker, contactor, relay, starter, fuse, pushbutton switch, meter, lighting, instrument and so on.
	www.digitivity.com /power-generation/switchgears/molded-case-circuit-breakers.html (1010 words)

	Eopt - Earth-leakage circuit-breaker (e.l.c.b.), residual-current-operated circuit breaker (r.c.c.b)
		Switch which disconnects the circuit by electro-mechanical means if, for exmple, an insulation defect makes a fault current flow through the tool operator.
		The fault current or leakage current is detected by a comparative measurement of the forward and reverse current in the power consumer.
		If the reverse current is not equivalent to the forward current, the earth-leakage circuit breaker is activated.
	www.wissen-elektrowerkzeuge.de /mdb/data/en/lexika/eopt/earthleakage_circuitbre.html (81 words)

	810 EL Analog ELCB / RCCB / GFCI Tester (Site not responding. Last check: 2007-10-14)
		This model is a high quality instrument used by professionals to obtain accurate values of disconnection sensitivity in accordance with their day to day requirements.
		Once connected to the power system, on the load side of the breaker to test, the current can be increased with the knob, starting at the minimum, until the breaker trip.
		The peak current will be the sensitivity at which the breaker has tripped (if no other faults are present on the system).
	www.hoytmeter.com /810el/810el.htm (484 words)

	Residual Current Circuit Breaker
		Type FSL1 Residual Current Circuit Breaker without Over Current Protection conforms to the standards of GB16916.1 IEC 1008 BS 4293 etc.It is used in the circuits of AC 50 to 60
		ELCB earth leakage circuit breaker The items is used for the protection...
		Mini circuit breaker is mainly suitable for overload and short circuit p...
	www.afacerionline.com /index.php/ShowRoom/showDetails/5909 (173 words)

	Voltage-Operated Earth-Leakage Circuit-Breaker - ECN Electrical Forum
		With respect to Neutral and Earth Busbars in switch-boards, when our Regs changed here in 1992, we were told that you were no longer allowed to connect the Main Earthing Lead to the Neutral B/bar, which was where it had been connected to in all the houses wired previous to this change.
		The disconnection of the main earth from the neutral bar or link has to be able to be carried out in a manner that does not destroy the integrity of the installations earthing system.
		All the circuit earths were soldered on to the main earth, the main earth could then be taken on and off the neutral bar as many times as you liked and earthing system integrity was maintained.
	www.electrical-contractor.net /ubb/Forum9/HTML/000532.html (4185 words)

	Earth Leakage Circuit Breaker (Long Term Elec. Co., Ltd.,China)
		Conforming to VDE 0664, CEE27 and BS 4293 standards, these breakers are applicable for use with AC 50 / 60Hz, 240V single phase or 415V three phase circuits for industrial and mining enterprises, trade buildings, and commercial and household use.
		To prevent accidents caused by personal electric shock from leakage of electrical wires, this ELCB is a current-operated, fast leakage protector of pure electromagnetic type, which can rapidly break off faulty circuits in order to avoid occurrence of accidents.
		If the current of the vector differential value of the protected circuit is up to or exceeding the leakage operating current, the tripper will act to cut off.
	oem-elec.en.alibaba.com /product/50260515/51106304/Low_Voltage_Electric_Apparatus/Earth_Leakage_Circuit_Breaker.html (346 words)

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