龙井低压电器产品手册
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龙井电器英文产品手册。（墙面开关插座、换气扇、光控开关、电能表、断路器、交流接触器、时间控制器，接插件、电流电压仪表、警示灯和蜂鸣器等）
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DT8 Three Phase Watt-hours Meter
Application
DT8 series three-phase watt-hour meter are induction meters which are applicable to measure active energy and reactive energy electric
energy consumption in a rated frequency 50Hz~60HZ and three phase AC alternating electrified net. The active energy meter are completely
conformed to National Standard GB/T1 5283-94 and Intermational Standard IEC521. All technical targets of reactive energy meter are completely
conformed to National Standard GB/T1 5282-94 and Intermational Standard IEC145.
Specification and main technical data
Outer and mount dimension
DD28 Single Phase Watt-hours Meter
Application
DD28 single-phase watt-hour meter is a kind of induction meter, which is appicable to measure the rated frequency 50HZ¡«60HZ and power loss
in electrified wire netting. All technical targets are completely conformed to National standard GB/T15283-94 and Intermational standard IEC521.
Structure feature
The meter has separable electromagnet and the bearing has four kinds; single-jewel,dual jewel, magnetic thrust and magnetic floating. The case
has three kinds; aluminum, plastic and glass. The die-casting frame is alloy aluminum with excellent mechanical strength.
Main technical data
Outer and mount dimension DD28 wiring diagram
26DD28-3 DD28-4 Single-phase Watt-hour Meter
Application
DD28-3, DD28-4 single -phase watt-hour meter is induction meter which is applicable to measure the rated frequency 50HZ~60HZ and power
loss in electrified wire netting. All technical targets are completely conformed to National Standard GB/T 15283-94 and International Standard IEC
521
Structure feature
The meter has separable electromagnet and the bearing has four kinds; single-jewel, dualijewel,magnetic thrust and magnetic floating. The case
has four kinds; aluminium,black plastic; trnasparence piastic and glass. The die-casting frame is alloy aluminium with excellent mechanical
strength.
Main technical data
DD28-3 DD28-4 wiring diagram Outer and mount dimension
27DD862 Single-phase Watt-hour Meter
Application
The DD862 single-phase watt-hours meter, an inductive meter, is to
meter electric energy consumption. As standard product, it’s tech-
nology index complies with GB/T15283-1994, the China nation
standard, and IEC521-1988. It is suitable for service at the occasion
with environment temperature of -10¡æ~+50¡æ and relative humid-
ity no more than 85%.
Structure feature
The electromagnetic component is horizontal. The electromagnetic
part features separation form. The iron core is half-closed plug-in
strip type; the current component adopts two-grade compensation
to leave the meter a wide load characteristic. The full-plastic volt-
age coil can undergo shock by caused by instantaneous big voltage.
The bearing structure, alternative of two gemstones and magnetic
shaft can assure long life. The two ends of wheel shaft of metering
device adopt corundum structure to lower attrition to keep the data
stable. The bracket is formed by aluminum alloy die-casting to leave
it outstanding mechanical performance. The two-pole Al-Ni-Cobalt DD862-D
damp magnetic steel has high coercive force and features high glass cover
five digital
stability. The copper wiring post and the metlbond plastic wiring
box are of excellent insulation.
Specification and main technical data
Outer and mount dimension DD862 wiring diagram
28DT862 Three-phase Watt-hour Meter
Application
The DT862 three-phase & four-wire and DS862 three-phase & three-wire AC watt-
hours meters are mechanically inductive meters. As standard products, they are to
meter AC active watt-hours Energy of three-phase & four-wire and three-phase &
three-wire, whose technology index complies with the standard of GB/T15283-
1994, a China nation standard, and IEC521.
Structure feature
The product consists of three-group electromagnetic components, dual round plate,
damp electromagnetic steel, aluminum alloy bracket, metering unit of five- or six-
position, wiring box and enclosure. The structure of electromagnetic component is
of separation style. The electromagnetic component stands at the two sides of the
basic bracket to improve the stability. The voltage iron core is of enclosed insertion
style. The damp component is made of Al-Ni-Cobalt magnet steel and fitted with
thermal magnetic alloy for temperature compensation. The rotation system has
been undergone balance calibration. The bearing is of dual-gemstone structure
fitted with shake-proof spring to extend the service life.
Specification and main technical data
Wiring diagram Outer and mount dimension
29DDS523 Single-phase Watt-hour Meter
Application
Made with advanced technique by adopting large-scale integrated circuit and highly reliable stepping motors etc.,Type DDS523 single-phase
electronic watt-hour meters are the newest power counting products in our country to measure single -phase AD active energy with the rated
voltage of 220V and and the rated frequency of 50Hz.This kind of products can precisely measure active energy both in positive and negative
directions.It can add up the results in a same direction It has the function of anti-stealing electricity.In order to monitor and control active energy
easily, it adopts testing signals with light-coupled output and light diodes to indicate the used power capacity.Its technical rpoperties are
comformed to the National Standard GB/T17215-2002 Grade I and Grade II Static AD Active Meters and the IEC Standard.
Performance principle
At using the meters, customers can get signal samples through enlargement, multiplication, integral, V/F exchange and divided frequent power
on the dividAed current and divided voltage meters to drive stepping motors and counters add up energy degrees.
Performance index Wiring diagram
High accuracy: Tolerance¡Ü¡À1%
High sensitivity: Starting current < 0.4% Ib
Broad load: Current overloaded multiple > 6 times
Low power comsumtion: Meter self-comsumtion < 0.4w
High reliability: MTBF > 1/10 mil.hr.
Light weight: < 0.5Kg
check pulse output
live line live line
imput output load
neutral line neutral line
Specification and main technical data
30LLB1-63(C65N) Mini Circuit Breaker
Application
LLB1 MCB is an all new high performance current lighting device with the ability to discon-
nect short circuits of up to 10kA. Which is the newest model in 21st century.
LLB1 MCB has many merits of high protective grade (up to Ip20), high breaking capacity,
Application
DT8 series three-phase watt-hour meter are induction meters which are applicable to measure active energy and reactive energy electric
energy consumption in a rated frequency 50Hz~60HZ and three phase AC alternating electrified net. The active energy meter are completely
conformed to National Standard GB/T1 5283-94 and Intermational Standard IEC521. All technical targets of reactive energy meter are completely
conformed to National Standard GB/T1 5282-94 and Intermational Standard IEC145.
Specification and main technical data
Outer and mount dimension
DD28 Single Phase Watt-hours Meter
Application
DD28 single-phase watt-hour meter is a kind of induction meter, which is appicable to measure the rated frequency 50HZ¡«60HZ and power loss
in electrified wire netting. All technical targets are completely conformed to National standard GB/T15283-94 and Intermational standard IEC521.
Structure feature
The meter has separable electromagnet and the bearing has four kinds; single-jewel,dual jewel, magnetic thrust and magnetic floating. The case
has three kinds; aluminum, plastic and glass. The die-casting frame is alloy aluminum with excellent mechanical strength.
Main technical data
Outer and mount dimension DD28 wiring diagram
26DD28-3 DD28-4 Single-phase Watt-hour Meter
Application
DD28-3, DD28-4 single -phase watt-hour meter is induction meter which is applicable to measure the rated frequency 50HZ~60HZ and power
loss in electrified wire netting. All technical targets are completely conformed to National Standard GB/T 15283-94 and International Standard IEC
521
Structure feature
The meter has separable electromagnet and the bearing has four kinds; single-jewel, dualijewel,magnetic thrust and magnetic floating. The case
has four kinds; aluminium,black plastic; trnasparence piastic and glass. The die-casting frame is alloy aluminium with excellent mechanical
strength.
Main technical data
DD28-3 DD28-4 wiring diagram Outer and mount dimension
27DD862 Single-phase Watt-hour Meter
Application
The DD862 single-phase watt-hours meter, an inductive meter, is to
meter electric energy consumption. As standard product, it’s tech-
nology index complies with GB/T15283-1994, the China nation
standard, and IEC521-1988. It is suitable for service at the occasion
with environment temperature of -10¡æ~+50¡æ and relative humid-
ity no more than 85%.
Structure feature
The electromagnetic component is horizontal. The electromagnetic
part features separation form. The iron core is half-closed plug-in
strip type; the current component adopts two-grade compensation
to leave the meter a wide load characteristic. The full-plastic volt-
age coil can undergo shock by caused by instantaneous big voltage.
The bearing structure, alternative of two gemstones and magnetic
shaft can assure long life. The two ends of wheel shaft of metering
device adopt corundum structure to lower attrition to keep the data
stable. The bracket is formed by aluminum alloy die-casting to leave
it outstanding mechanical performance. The two-pole Al-Ni-Cobalt DD862-D
damp magnetic steel has high coercive force and features high glass cover
five digital
stability. The copper wiring post and the metlbond plastic wiring
box are of excellent insulation.
Specification and main technical data
Outer and mount dimension DD862 wiring diagram
28DT862 Three-phase Watt-hour Meter
Application
The DT862 three-phase & four-wire and DS862 three-phase & three-wire AC watt-
hours meters are mechanically inductive meters. As standard products, they are to
meter AC active watt-hours Energy of three-phase & four-wire and three-phase &
three-wire, whose technology index complies with the standard of GB/T15283-
1994, a China nation standard, and IEC521.
Structure feature
The product consists of three-group electromagnetic components, dual round plate,
damp electromagnetic steel, aluminum alloy bracket, metering unit of five- or six-
position, wiring box and enclosure. The structure of electromagnetic component is
of separation style. The electromagnetic component stands at the two sides of the
basic bracket to improve the stability. The voltage iron core is of enclosed insertion
style. The damp component is made of Al-Ni-Cobalt magnet steel and fitted with
thermal magnetic alloy for temperature compensation. The rotation system has
been undergone balance calibration. The bearing is of dual-gemstone structure
fitted with shake-proof spring to extend the service life.
Specification and main technical data
Wiring diagram Outer and mount dimension
29DDS523 Single-phase Watt-hour Meter
Application
Made with advanced technique by adopting large-scale integrated circuit and highly reliable stepping motors etc.,Type DDS523 single-phase
electronic watt-hour meters are the newest power counting products in our country to measure single -phase AD active energy with the rated
voltage of 220V and and the rated frequency of 50Hz.This kind of products can precisely measure active energy both in positive and negative
directions.It can add up the results in a same direction It has the function of anti-stealing electricity.In order to monitor and control active energy
easily, it adopts testing signals with light-coupled output and light diodes to indicate the used power capacity.Its technical rpoperties are
comformed to the National Standard GB/T17215-2002 Grade I and Grade II Static AD Active Meters and the IEC Standard.
Performance principle
At using the meters, customers can get signal samples through enlargement, multiplication, integral, V/F exchange and divided frequent power
on the dividAed current and divided voltage meters to drive stepping motors and counters add up energy degrees.
Performance index Wiring diagram
High accuracy: Tolerance¡Ü¡À1%
High sensitivity: Starting current < 0.4% Ib
Broad load: Current overloaded multiple > 6 times
Low power comsumtion: Meter self-comsumtion < 0.4w
High reliability: MTBF > 1/10 mil.hr.
Light weight: < 0.5Kg
check pulse output
live line live line
imput output load
neutral line neutral line
Specification and main technical data
30LLB1-63(C65N) Mini Circuit Breaker
Application
LLB1 MCB is an all new high performance current lighting device with the ability to discon-
nect short circuits of up to 10kA. Which is the newest model in 21st century.
LLB1 MCB has many merits of high protective grade (up to Ip20), high breaking capacity,
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