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BCH8-25 2P AC contactor

BCH8 miniature automatic AC contactor (also known as modular contactor, construction contactor) is mainly suitable for power systems with AC 50Hz/60Hz, rated operating voltage up to 400V, and rated operating current up to

 

125A, in AC-1  (non-inductive or low-inductive loads, resistance furnaces, household appliances and similar low-inductive loads) use category, used for remote switches and control circuits, and can also be used to control

 

household motor loads. Household contactors are not used to break short-circuit current, so appropriate short-circuit protection appliances (such as small circuit breakers) should be selected when using them. Comply with

 

standards IEC61095, GB17885.IEC60947-4-1,GB/T 14048.4.

    Scope of application

     

    BCH8 miniature automatic AC contactor (also known as modular contactor, construction contactor) is mainly suitable for power systems with AC 50Hz/60Hz, rated operating voltage up to 400V, and rated operating current up to

     

    125A, in AC-1  (non-inductive or low-inductive loads, resistance furnaces, household appliances and low-inductive loads for similar purposes) use category, used for remote switches and control circuits, and can also be

     

    used to control household motor loads. Household contactors are not used to break short-circuit current, so appropriate short-circuit protection appliances (such as small circuit breakers) should be selected when using them.

     

    Comply with standards IEC61095, GB17885.BCH8 contactors can expand auxiliary control, protection and indication functions.The BCH8 household AC contactor is a control appliance used to remotely connect and disconnect

     

    non-inductive or low-inductive loads, resistance furnaces, household appliances and similar low-inductive loads, household motors, etc.BCH8 household contactors are mainly used in homes, hotels, apartments, office buildings,

     

    public buildings, shopping malls, stadiums and other places to realize automatic control functions.

     

    Features

    ①. Modular control electrical appliances with novel structure and compact size.

     

    ②. The installation is track-based, the size is modular, and it is safe to use. It can be installed in the control lighting box in combination with a small circuit breaker.

     

    ③. Using high-quality insulation materials greatly improves safety.

     

    ④. Beautiful appearance, with working status indicator window.

     

    ⑤. No noise, suitable for hotels, hospitals and other places.

     

    Model and its meaning

    型号含义.jpg

     

    (eg. BCH8-25/20230V, It is 25A, 2 normally open, 230V AC coil voltage)

     

    normal working conditions

     

    Ambient air temperature: The upper limit of the ambient air temperature is +60℃ and the lower limit is -5℃. When the household AC contactor is installed in the distribution box, spacers must be assembled on both sides to

     

    facilitate heat dissipation.

     

    Altitude: The altitude of the installation site does not exceed 2000m.

     

    Atmospheric conditions: When the installation temperature is +60°C, the relative humidity of the air does not exceed 50%. Higher relative humidity can be allowed at lower temperatures, such as up to 90% at +20°C. Occasionally caused by temperature changes Special measures should be taken for condensation.

     

    Pollution level: Level II.

     

    Installation category: Ⅱ.

     

    Installation method: TH35-7.5 type guide rail is used for installation. There is no significant impact or vibration at the installation location. It is installed vertically. The inclination of the installation surface to any direction does not

     

    exceed 5°.

     

    The main technical parameters

     

    Quota work system

     

    a) Eight-hour working system: This working system is the basic working system. The agreed free air heating current Ith of the household AC contactor is determined by this working system.

     

    b) Intermittent cycle working system: The rated operating frequency of household AC contactors under this working system is 30 times/h, and the load factor is 40%.

     

    Action (operation) conditions

     

    When the ambient air temperature is in the range of -5℃~+60℃, apply the rated power supply voltage Us to the contactor attraction coil to make it heat to a stable state, the contactor should be within the range of (85%~110%)

     

    Us Can reliably close under any voltage; release and open between 75% and 20% of the rated control power supply voltage Us.

     

    Product life

     

    Mechanical life: The mechanical life of the modular contactor is not less than 1 million times.

     

    Electrical life: The electrical life of the modular contactor is not less than 100,000 times.

     

    Specification

    16A

    20A

    25A

    40A

    63A

    80A

    100A

    125A

    Rated current

    AC-7a(AC-1)

    16

    20

    25

    40

    63

    80

    100

    125

    AC-7b(AC-3)

    6

    7

    9

    18

    25

    32

    40

    50

    Agreed heating current Ith (A)

    25

    25

    25

    63

    63

    125

    125

    125

    Rated insulation voltage Ui(V)

    500

    Rated operating voltage Ue (V)

    250V(1P/2P) 400V(3P/4P)

    Number of main contacts

    1P

    1NO、1NC

    2P

    1NO1NC、2NO、2NC

    3P

    3NO、3NC

    4P

    2NO2NC、3NO1NC、4NO、4NC

    Control power (KW)

    AC-7a(AC-1)

    250V

    3.6

    4.6

    5.7

    9.2

    14.4

    18.4

    23

    27.6

    400V

    6.3

    7.6

    16.4

    26.2

    41.4

    52.5

    65.7

    82.1

    AC-7b(AC-3)

    250V

    1.3

    1.6

    2

    4.1

    5.7

    7.3

    9.2

    11.5

    400V

    3.9

    4.3

    5.9

    11.8

    16.4

    21

    26.2

    32.8

    Electrical life (times)

    100,000

    Mechanical life (times)

    1000000

    Maximum number of switching operations per hour

    30

    Maximum number of switching operations per day

    100

    AC/DC12V AC/DC24VAC/DC48V AC/DC110VAC/DC 230V

    AC 24/50Hz AC230/50Hz

    frequency

    50Hz/60Hz

    pollution level

    2

    Rated impulse withstand voltage (Uimp)

    2.5kV(4kV--12/24/48VAV)

    Protection level

    (IEC60529)

    Contactor body

    IP20

    Installed in distribution box

    IP40

    Operating temperature

    -5℃~+60℃

    storage temperature

    -40℃~+70℃

    Heat and moisture resistance (IEC60068.1)

    Category 2 (temperature 55℃, relative humidity 95%)

    ELSV (Extra Low Safety Voltage) compliant with 12/24/48VAC version

    Product control complies with SELV (Safety Extra Low Voltage) requirements

     

     

    Note: When the contactor is installed in the distribution box, spacers must be assembled on both sides to facilitate heat dissipation.

     

    working principle

     

    When the coil is energized, the coil current generates a magnetic field, which generates enough electromagnetic attraction to overcome the reaction force, attract the armature, and connect the contacts. When the coil voltage

     

    disappears or the coil voltage drops to a certain value, it is the so-called release voltage. , due to the reduction of the magnetic flux generated by the armature end face, the electromagnetic attraction force begins to be smaller

     

    than the reaction force generated by the reaction spring, contact spring, etc. The contactor armature is released under the action of this reaction force, leaves the magnetic yoke, and the contacts are immediately disconnected.

    Selection of 50Hz household AC contactor

     

    1P

     Rated current(In)

     Rated current (AAC) (50Hz)

    Contact

    Width(mm)

    Schematic diagram

    AC7a(AC-1)

    AC7b(AC-3)

    25A

    9A

    220...240

    1NO

    18

    2P

    16A

    6A

    230...240

    2NO

    18

     

     

     

    230...240

    1NO+1NC

    18

    25A

    9A

    24

    2NO

    18

    230...240

    2NO

    18

    230...240

    2NC

    18

    40A

    18A

    220...240

    2NO

    36

    63A

    25A

    220...240

    2NO

    36

    80A 

    32A

    220...240

    2NO

    54

    100A

    40A

    220...240

    2NO

    54

    125A

    50A

    220...240

    2NO

    54

    3P

    25A

    9A

    220...240

    3NO

    36

    40A

    18A

    220...240

    3NO

    54

    63A

    25A

    220...240

    3NO

    54

    4P

    16A

    6A

    220...240

    2NO+2NC

    36

     

     

     

    25A

    9A

    24

    4NO

    36

    220...240

    4NO

    36

    24

    4NC

    36

    220...240

    4NC

    36

    220...240

    2NO+2NC

    36

    40A

    18A

    220...240

    4NO

    54

    220...240

    4NC

    54

    63A

    25A

    220...240

    4NO

    54

    220...240

    4NC

    54

    220...240

    2NO+2NC

    54

    220...240

    3NO+1NC

    54

    80A

    32A

    220...240

    4NO

    108

    100A

    40A

    220...240

    4NO

    108

    125A

    50A

    220...240

    4NO

    108

    BCH8 Manually Operated Household Contactor 50Hz

    BCH8手动操作家用接触器50Hz.jpg

     

    Operation (manually operated contactor)

    操作(手动操作接触器).jpg

     

    Installation diagram

    Installation diagram.jpg

     

    type

    Rated current

     

    Stripping length

    circuit

     

    Torque

     

    copper wire

     

    Schematic diagram

     

    hardwired

     

    Flexible wire or ferrule terminals

     

    BCH8

    PZ1:4mm

    16-100A

    9mm

    Control loop

     

    0.8Nm

    1.5~2.5mm²

    1.5~2.5mm²

    0.jpg

    2×1.5mm²

    2×2.5mm²

    16-25A

    Power loop

     

     

    1.5~6mm²

    1~4mm²

    PZ2:6mm

    40A-63A

    14mm

     

    3.5Nm

    6~25mm²

    6~16mm²

    100A

    6~35mm²

    6~35mm²

    AUC11,AUC20

    PZ1:4mm

    -

    9mm

    -

    0.8Nm

    1.5~2.5mm²

    1.5~2.5mm²

    2×1.5mm²

    2×2.5mm²

     

    Auxiliary accessories

     

     

    AC-12

    AC-15

    DC-13

    Rated current

    Circuit diagram

    picture

    control

    voltage

    control

    current

    control

    voltage

    control

    current

    control

    voltage

    control current

    BCH8-AUC11

    240V

    5A

    230V

    2A

    DC

     130V

    1A

    5A

    0.jpg

    2.jpg

    BCH8-AUC20

    240V

    5A

    230V

    2A

    DC

     130V

    1A

    5A

    1.jpg

     

    Spacers Spacers are used to reduce the temperature rise of devices installed side by side. It is recommended to separate electronic equipment (temperature regulating devices, programmable clocks, etc.) from

     

    electromechanical equipment (pulse relays, contactors).

     

     

    Technical

    Specifications

    Pictures

    Spacer 

    3mm spacer

    0.jpg

    9mm spacer

     

    Technical specifications

    Control voltage(Ue)

    VAC

    24...240

    230...240

    24...48

    VDC

    24...130

    -

    working frequency

    Hz

     

    50

    Width (multiples of 9mm)

    1

    2

    Auxiliary contacts (breaking capacity)

     Minimum:10mA at 24VDC/AC-COSΦ=1

    Maximum

    ○5A at 240V DC-COSΦ=1

    ○1A at 130 VDC

    -

    Number of contacts

    1NO+1NC/2NO

    -

    Operating temperature

    -5℃~+50℃

     

    storage temperature

    -5℃~+50℃

     

     

    Contactor power consumption

     

    BCH8 household AC contactor-50Hz

    Rated current(In) control voltage Power consumption Maximum power
    AC7a(AC-1) AC7b(AC-3) (VAC)(50Hz) Hold on Pull in
    1P
    25A 9A 230...240 2.7VA 9.2VA 1.2W
    2P
    16A 6A 230...240 2.7VA 9.2VA 1.2W
        230...240 2.7VA 9.2VA 1.2W
    25A 9A 24 3.8VA 15VA 1.3W
        230...240 2.7VA 9.2VA 1.2W
        230...240 2.7VA 9.2VA 1.2W
    40A 18A 220...240 4.6VA 34VA 1.6W
    63A 25A 220...240 4.6VA 34VA 1.6W
    80A 32A 220...240 6.5VA 53VA 2.1W
    100A 40A 220...240 6.5VA 53VA 2.1W
    125A 50A 220...240 6.5VA 53VA 2.1W
    3P
    25A 9A 220...240 4.6VA 34VA 1.6W
    40A 18A 220...240 6.5VA 53VA 2.1W
    63A 25A 220...240 6.5VA 53VA 2.1W
    4P
    16A 6A 220...240 4.6VA 34VA 1.6W
    25A 9A 24 4.6VA 34VA 1.6W
        220...240 4.6VA 34VA 1.6W
        24 4.6VA 34VA 1.6W
        220...240 4.6VA 34VA 1.6W
        220...240 4.6VA 34VA 1.6W
    40A 18A 220...240 6.5VA 53VA 2.1W
        220...240 6.5VA 53VA 2.1W
    63A 25A 220...240 6.5VA 53VA 2.1W
        220...240 6.5VA 53VA 2.1W
        220...240 6.5VA 53VA 2.1W
    80A 32A 220...240 220...240 53VA 2.1W
        220...240 220...240 53VA 2.1W
    100A 40A 220...240 13VA 106VA 4.2W
    125A 50A 220...240 13VA 106VA 4.2W

     

    BCH8 Manually Operated Household Contactor-50Hz

     

    Rated current(In)

    control voltage

    (VAC)

    (50Hz)

    Power consumption maintained

    attract

    Maximum power

    AC7a(AC-1)

    AC7a(AC-3)

    2P

    25A

    9A

    230...240

    2.7VA

    9.2VA

    1.2W

    40A

    18A

    220...240

    4.6VA

    34VA

    1.6W

    63A

    25A

    220...240

    4.6VA

    34VA

    1.6W

    4P

    25A

    9A

    220...240

    4.6VA

    34VA

    1.6W

    40A

    18A

    220...240

    6.5VA

    53VA

    2.1W

    63A

    25A

    220...240

    6.5VA

    53VA

    2.1W

     

    Shape and installation dimensions

    外形及安装尺寸.jpg

    Installation, use and maintenance

     

    Before installation, you should check the technical data of the household AC contactor (such as whether the rated voltage, current, operating frequency, etc. meet the requirements).

     

    During installation, it should be installed according to the specified conditions. The terminal A1 of the contactor coil should be facing upwards, in line with human visual habits.

     

    Contactors with metal mounting base plates must be properly grounded.

     

    The terminal screws should be tightened. After checking that the wiring is correct, the suction coil should be energized and opened and closed several times when the main contact is not charged. The test action can be reliable

     

    before it can be put into use.

     

    If you find abnormal noise when using a household contactor, it may be that there is dirt on the pole surface of the iron core. Please clean the pole surface.

     

    When using a household AC contactor, all parts of the product should be checked regularly to ensure that the movable parts are not stuck and the fasteners are not loose. If the parts are damaged, they should be replaced in

     

    time.

     

    Applications

     

    BCH8 household contactors can be used in large-scale lighting circuit control, public hot water control, geothermal system power control, automatic roller shutter control, small motor control, etc.combine.It can effectively control

     

    various electrical equipment in large public places such as hotels, hotels, stations, hospitals, and office buildings, and can be used as the ultimate terminal execution unit of intelligent building systems.

     

    pieces.

     

    Application occasions

     

    Banks, industry and commerce, taxation, telecommunications, hospitals, postal services, finance bureaus, labor bureaus, personnel bureaus, social security bureaus, government one-stop service offices, insurance, vehicle

     

    management offices, transportation

     

    Administration offices, consulates, entry and exit, customs, inspection and quarantine bureaus, centers for disease prevention and control, technical supervision bureaus, product customer service centers and other window

     

    service industries.

     

    Precautions

     

    1. Before installation, check whether the household contactor is consistent with the scope of use and normal working conditions.

     

    2. The wiring method of BCH8 contactor should be correct.

     

    3. The wiring screws of BCH8 household contactor need to be tightened when wiring.