CAU4-100T Surge Protective Device
Application
The combined devices are applicable to arrest high energy current impulses (10/350¦s waveform) which can appear in one- or three-phase overhead lines by lightning and/or discharge overvoltage occurred by switch-type (8/20¦s wave-form) over-currents. These arresters have compact (block type) mounting form. The type 1 + 2 lightning arresters must be installed into the main distribution box of the building right after the first main current limitation device and before the power meter.
Attention! The discharge capability of combined devices cannot reach the discharge capability of single devices!
These devices can also be used in properly planned photovoltaic (DC) systems as well.
Specification
| Model | CAU4-100T |
Main voltage | 230/400V, 50Hz |
Network system | TN, TT, IT |
Highest continuous voltage (Uc) | 385V |
Network system | 385V AC, 500V DC |
Nominal discharge current (In 8/20s) | 50kA |
Protection level (Up) | 2.4kV |
NPE lightning impulse discharge current (10/350s) | 8kA |
Follow current limitation | 125A gG |
Follow current extinguishing capacity | 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: 6-35 fexible: 6-25 |
Flammability of housing | UL94-V0 |
Assortment
| Model | Number of poles | W (mm) | Lightning impulse current (10/350s) Iimp/ pole | Maximal discharge current (8/20s) Imax | Color | Type |
CAU4-100T1+2/1P-385V | 1P | 36 | 8kA | 100kA | grey | compact |
CAU4-100/T1+2/2P-385V | 2P | 72 | 8kA | 100kA | grey | compact |
CAU4-100/T1+2/3P-385V | 3P | 108 | 8kA | 100kA | grey | compact |
CAU4-100/T1+2/4P-385V | 4P | 144 | 8kA | 100kA | grey | compact |
CAU4-100/T1+2/3P+NPE-385V | 3P+N/PE | 144 | 8kA | 100kA | grey | compact |
Overall and Installation Dimension(mm) 
Welcome to wholesale the low price and high quality 100ka surge protection device spd with ce and rohs approval 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.
