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Leakage circuit breaker (leakage protector)
Time:2017-07-20 02:28:57    Page view (397)
The leakage circuit breaker (also known as the leakage protector) is generally divided into public (factory power distribution and temporary power supply use) and civilian (residential and temporary power supply use), first we introduce civil leakage circuit breakers, the general use of current is not greater than 125A , Leakage mA is not greater than 50mA, the normal use is generally below 63A, leakage current of 30mA, the number of 1P (1P on behalf of a single pole), 2P leakage protector, the working voltage of 220V.
3P leakage protection device (3P leakage circuit breakers are divided into three-phase three-wire and three-phase four-wire), three-phase three-wire use of special, generally rarely used, the use of the environment (3P leakage circuit breakers) For the three-phase three-wire motor and other non-use N-pole (zero line) of the line; conventional use are three-phase four-wire leakage circuit breakers, or four-wire leakage circuit breakers, the operating voltage of 380 lines.
working principle:
Leakage protector works mainly by the magnetic ring and the circuit board composed of two parts, when the zero line and the line of fire through the magnetic ring when the magnetic current generated just offset, the magnetic ring sensor voltage, when a line leakage or Ground line (zero line), the current through the magnetic circuit in the circuit will be unbalanced in the secondary winding of the magnetic ring induced voltage, through the circuit board to amplify the voltage pull release, so that leakage protector trip Trip. Under normal circumstances in the magnetic ring through the main line of the same size of the magnetic field, the opposite direction of operation, just offset, in the current amplifier does not produce current, the release does not move, when the line leakage occurs when the current is not balanced, The magnetic field can not cancel each other, the current in the coil, amplified by the amplifier after the electromagnetic release of the magnet pull action, the tripod hit the leakage circuit breaker lock, so that the circuit breaker trip to cut off the power.
Three - phase four - wire leakage protector working principle
Leakage protector action is the current action type, when the magnetic ring through the line of fire (L1, L2, L3) and zero line N pole are through the zero sequence current transformer induction coil. Under normal circumstances, when the three-phase load current through the magnetic ring when the sum of its vector is zero, magnetic loop induction coil without current output, leakage circuit breaker normal operation.
When the equipment fails or when the personal contact is grounded, the fault current signal is grounded back to the transformer. The vector current of the magnetic ring induction coil is not zero. The residual current of the magnetic ring induction coil flows through the release device. When the current reaches When the setting value is set, the triper is turned off and the leakage circuit breaker trips to cut off the power supply. And play the protective role of equipment and personal.
Leakage circuit breaker (leakage protection) models are divided into small leakage protector and plastic shell leakage protection.
Small leakage protector models are as follows:
DZ47LE-63 / 1P current are 1A.2A.3A.5A.6A.10A.16A.20A.25A.32A.40A.50A.63A.
DZ47LE-63 / 2P current is 1A.2A.3A.5A.6A.10A.16A.20A.25A.32A.40A.50A.63A.
DZ47LE-63 / 3P current is 1A.2A.3A.5A.6A.10A.16A.20A.25A.32A.40A.50A.63A.
The DZ47LE-63 / 4P current is 1A.2A.3A.5A.6A.10A.16A.20A.25A.32A.40A.50A.63A, respectively.
DZ47LE-100 / 1P current are 63A.70A.80A.100A respectively.
DZ47LE-100 / 2P current are 63A.70A.80A.100A respectively.
DZ47LE-100 / 3P current, respectively, 63A.70A.80A.100A.
DZ47LE-100 / 4P current are 63A.70A.80A.100A respectively.
DZ47LE-125 / 1P current are 63A.70A.80A.100A.125A.
DZ47LE-125 / 2P current, respectively 63A.70A.80A.100A.125A.
DZ47LE-125 / 3P current are 63A.70A.80A.100A.125A.
DZ47LE-125 / 4P current are 63A.70A.80A.100A.125A.

Home leakage protector

DZ30L-32 / 1P current, respectively, 6A.10A.16A.20A.25A.32A.40A.50A.63A.


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Molded Case Leakage Circuit Breaker (Leakage Protector)

DZ10LE-100/4300 current, respectively, 15A.20A.25A.30A.40A.50A.60A.80A.100A.

DZ10LE-250/4300 current, respectively, 100A.120A.140A.150A.170A.200A225A.250A.

DZ10LE-600/4300 current, respectively, 200A.250A.300A.400A.500A.600A.

DZ15LE series of leakage protection

DZ15LE-40/290 current are 6A, 10A, 16A, 20A, 25A, 32A, 40A.

DZ15LE-40/390 current are 6A, 10A, 16A, 20A, 25A, 32A, 40A.

DZ15LE-40/490 current are 6A, 10A, 16A, 20A, 25A, 32A, 40A.

DZ15LE-63/290 current are 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A.

DZ15LE-63/290 current are 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A.

DZ15LE-63/290 current are 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A.

DZ15LE-100/290 current are 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A.80A.100A

DZ15LE-100/390 current are 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A.80A.100A

DZ15LE-100/490 current are 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A.80A.100A

DZ20LE系列漏电保护器
DZ20LE-100/4300 电流分别有 16A.20A.32A.40A.50A.63A.80A.100A.
DZ20LE-160/4300电流分别有 40A.50A.63A80A.100A.125A.160A.180A.200A.225A.250A.
DZ20LE-250/4300电流分别有 100A.125A.160A.180A.200A.225A.250A.
DZ20LE-400/4300电流分别有 200A.250A.315A.350A.400A
DZ20LE-630/4300电流分别有 400A.500A.630A.

RMM1L series of leakage circuit breakers

RMM1L-100M / 4300 Operating current: 10A.16A.20A.25A.32A.40A.50A.63A.80A.100A.

RMM1L-225M / 4300 Working current: 100A.125A.160A.180A.200A.225A.

RMM1L-400M / 4300 Working current: 225A.250A.315A.400A

RMM1L-630M / 4300 Working current: 400A.500A.630A.

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