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AT-8133 ATCOVER 400T : three-phase, 400Vac line
AT-8132 ATCOVER 230T : three-phase, 230Vac line
Efficient protection against transient overvoltages for TT and TNS electrical supply lines in only one device. Medium and low internal coordination protection stages, recommended in Regulation of Low Voltages (REBT ITC23).
Tested and certified as Type 1, 2 and 3 according to regulations EN 61643-11 and GUIDE-BT-23 from REBT. Suitable for Categories I, II, III and IV equipment according to ITC-BT-23 from REBT. Discharge takes place in an internal encapsulated element, with no external flash.
It remains inactive in normal conditions, without affecting the normal working of the line and without leakage.
- Coordinable with other SPDs such as ATSHOCK, ATSHIELD and ATSUB series.
- Both common and differential protection for the phase and neutral lines
- No interruptions in power supply, thus avoiding data loss and other inconvenients for the user.
- Low residual voltage.
- Double warning of “no protection” trough a lightning indicator of failure and a green light indicating good operation.
- With remote control alarm.
- Robust connectors, suitable for all type of connection.
ATCOVER T SPDs have been tested in offi cial, independent laboratories , obtaining their characteristics according to relevant standards (related in the
Installation ATCOVER T:
ATCOVER T Surge Protective Devices are to be installed in parallel with the Low Voltage supply line, connected to line/s, neutral and ground.
The power should be disconnected during the installation of the SPD.
When connecting the protector, the green light must turn on indicating its good operation. If the failure warning turns on, or the green pilot turns of its imperative to replace the protector.
ATCOVERs can be installed as single protection or in combination with other protectors that withstand higher discharge currents. In this case, it is necessary that both are separated by at least 10 meter cable or, if this is not possible, by a decoupling inductor ATLINK, in order to achieve a correct coordination between them.
Their installation is recommended in:
- Secondary boards supplying sensitive systems. (electronics, informatics...)
- Power supply of important equipment such as UPSs, PLCs, et
Earth connection is a must. Earthing in all the installation must be bonded either directly or by a spark gap and resistance should be lower than 10Ω. If the indications of this datasheet are not fulfi lled during the use or installation of the SPDs, the protection assured by this device could be endangered.
Technical Datasheet ATCOVER T
|Protection categories according to REBT:||I, II, III, IV|
|Type of tests according to EN 61643-11: Un||Type 1+2+3|
|Nominal voltage: Uc||400VAC(L-L) 220VAC (L-N, L-GND)|
|Maximum working voltage:||440VAC (L-L) 255VAC (L-N, L-GND)|
|Nominal frequency: In||50-60Hz|
|Nominal discharge current (wave 8/20μs): In||10kA|
|Maximum discharge current (8/20μs wave): Imax||30kA|
|Impulse current (10/350μs wave): Iimp||6kA|
|Protection level at In (8/20μs wave): Up(In)||900V|
| Protection level (1,2/50μs wave): Up
|Combined wave tension: Uoc||6kV|
|Residual voltage with combination wave 6kV/3kA||700V|
|Response time: tr||<25ns|
|Backup fuse(1):||125A gL/gG|
|Maximum short-circuit current:||25kA (for maximum fuse)|
|Working temperature:||-40ºC to +70ºC|
|Type of connection:||Parallel (one port)|
|Number of poles:||4|
|Dimensions:||72 x 90 x 80mm (8 mod. DIN43880)|
|Autoextinguish enclosure:||V-0 Type according to UNE-EN 60707 (UL94)|
|Connections L/N/GND:||Min/Max section multi-stranded: 4 / 35 mm² (11/2 AWG)
Min/Max section single-stranded: 1 / 35 mm² (17/2 AWG)
|Voltage-free contact for the remote control|
|Connection:||Maximum section single-stranded / multi-stranded: 1,5mm²|
|Working voltage:||250VAC(Maximum working voltage of the alarm supply)|
|Maximum current:||2A (Maximum current of the alarm supply)|
| Certificated tests according to: IEC 61643-1, EN 61643-11
Complies with requirements of: UL 1449
Relevant standards: UNE 21186, NFC 17102, IEC 62305