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CE and RoHS Approved 1P 3P 40KA Surge Protective Device SPD

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Product Details

CAU4-40 Surge Protective Device 

Application
The type 2 surge protective device are applicable to discharge overvoltage caused by switch-type (8/20¦s wave-form) over currents. The type 2 arrestersmust be installed into sub-distribution boards (at condominium into distribution boards of flats) after main distribution boards containing type 1 arresters.
For proper operation at least 10- 15 m cable or wire must be placed between type 1 and type 2 arresters. Otherwise a decoupling coil has to be installedbetween the two devices. These protectors are modular types with changeable insert; the auxiliary contact is built-in into the housing of the device.

Specification

 Model

CAU4-40

CAU4-30

CAU4-20

Rated voltage

230V, 3x230/400V

Network system

TN, TT, IT

Highest continuous voltage (Uc)

385/440V

385V

385/440V

Protection level (Up)

1.8kV

1.6kV

1.5kV

Follow current limitation

125A gG

Follow current extinguishing capability

10kA/AC

Ambient temperature

-40℃…+55℃

Type of terminal

elevator clamp

Integrated protection devices

varistor, thermal fuse

Mounting

on 7.5 x 35 mm size mounting rail (EN 50022)

Auxiliary status contact

Integrated (1 pc NO contact)

Arresting signal

Red optical signal

Terminal capacity

solid: 6-35fexible: 6-25

Flammability of housing

UL94-V0




Assortment


  Model

Number of poles

W(mm)

Nominal discharge (8/20µs) In

Maximal discharge current (8/20µs) Imax

Color

Type

CAU4-40/1P

1P

18

20kA

40kA

grey

changeable

CAU4-40/2P

2P

36

20kA

40kA

grey

changeable

CAU4-40/3P

3P

54

20kA

40kA

grey

changeable

CAU4-40/1P+N/PE

1P+N/PE

36

20kA

40kA

grey

changeable

CAU4-40/2P+N/PE

2P+N/PE

54

20kA

40kA

grey

changeable

CAU4-40/3P+N/PE

3P+N/PE

72

20kA

40kA

grey

changeable

CAU4-40/4P

4P

72

20kA

40kA

grey

changeable

CAU4-30/1P

1P

18

15kA

30kA

grey

changeable

CAU4-30/2P

2P

36

15kA

30kA

grey

changeable

CAU4-30/3P

3P

54

15kA

30kA

grey

changeable

CAU4-30/1P+N/PE

1P+N/PE

36

15kA

30kA

grey

changeable

CAU4-30/2P+N/PE

2P+N/PE

54

15kA

30kA

grey

changeable

CAU4-30/3P+N/PE

3P+N/PE

72

15kA

30kA

grey

changeable

CAU4-30/4P

4P

72

15kA

30kA

grey

changeable

CAU4-20/1P

1P

18

10kA

30kA

grey

changeable

CAU4-20/2P

2P

36

10kA

30kA

grey

changeable

CAU4-20/3P

3P

54

10kA

30kA

grey

changeable

CAU4-20/1P+N/PE

1P+N/PE

36

10kA

30kA

grey

changeable

CAU4-20/2P+N/PE

2P+N/PE

54

10kA

30kA

grey

changeable

CAU4-20/3P+N/PE

3P+N/PE

72

10kA

30kA

grey

changeable

CAU4-20/4P

4P

72

10kA

30kA

grey

changeable

Overall and Installation Dimension(mm)

Welcome to wholesale the low price and high quality ce and rohs approved 1p 3p 40ka surge protective device spd with CHANGAN GROUP. We are one of the leading manufacturers and suppliers of various low voltage electrical apparatus in China. And the free sample and the customized service are also available.

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