BLITZDUCTOR® XTU
|  Example of use of BLITZDUCTOR XTU |
Details
BLITZDUCTOR XTU combined lightning current and surge arresters for the protection of information and automation systems stand out due to their new, revolutionary technology: The nominal voltage is not specified, however, the arresters can be used for all voltages ranging from 0 to 180 V d.c. Their innovative technology allows them to automatically detect the signal voltage of the wanted signal and to adapt themselves to this voltage. They also continuously adapt their voltage protection level to the currently applied operating voltage and are ideally suited for all applications where changing voltages occur. In case of interference, BLITZDUCTOR XTU arresters always have an adapted, minimal residual voltage for every signal voltage to provide maximum protection for devices and systems connected to them. BLITZDUCTOR XTU combined lightning current and surge arresters also considerably reduce planning efforts and minimise storage requirements. Even if the voltages to be used for signal transmission are not known during the planning stage of a project, BLITZDUCTOR XTU arresters allow specifying a protective device thus facilitating procurement and storage at the execution stage of the project. BLITZDUCTOR XTU arresters are also ideally suited to be retrofitted into existing systems or to replace existing arresters as it is frequently not entirely clear which types of nominal voltage are to be used. This is not an issue if BLITZDUCTOR XTU arresters are used. BLITZDUCTOR XTU arresters are pluggable and universal multipole DIN rail mounted lightning current and surge arresters for the protection of measuring and control circuits, bus systems and telecommunication systems which require a high level of availability. For effective protection of terminal equipment underlightning and overvoltage conditions, BLITZDUCTOR XTU arresters combine the permanently high impulse current discharge capacity of a lightning current arrester with the low voltage protection level of a surge arrester which is optimally adapted to the currently applied operating voltage. LifeCheck allows easy and fast testing of arresters without removing the module from the system circuit. Integrated into the SPD modules, LifeCheck permanently monitors the proper condition of the arrester and acts like an early warning system, detecting imminent electrical or thermal overload of the protection components. The LifeCheck status can be read out within a matter of seconds via contactless RFID technology by means of the portable DEHNrecord LC reader and shows the date of the last test of the SPD module. Stationary installed, a condition monitoring system allows condition-based maintenance of 10 BXT arresters. The module locking mechanism ensures safe operation. Thus the arrester provides protection against vibration effects and shock loads up to a 30-fold acceleration of gravity. The function-optimised design of the arrester ensures both fast and easy replacement of the SPD module which houses all relevant protection elements. A wide range of accessories makes the BLITZDUCTOR XTU arrester particularly user-friendly. Elements for labelling, earthing of unused lines or easy testing of lines complete the product range. |
 Testing of an SPD module via RFID technology (LifeCheck) |
 | Completely mounted BLITZDUCTOR XTU. Two-part design with base part and SPD module. Particularly space-saving, for DIN rail mounting. |
 | The function-optimised design of the arrester allows both to safely plug the SPD module into the base part and to remove it without problems. The module is snapped into the base part (audible click). When pressing the grey buttons, the module can be removed with little effort. This is ensured by the laminated contacts in the base part and the release spring of the module. A mechanical reverse voltage protection ensures that the module is installed in the correct position. |
 | Up to four lines can be connected on two levels. For DIN rail mounting purposes, lines of a pair belonging to each other are connected on top of one another. |
 | If the line shield cannot be directly earthed on both sides for technical reasons, one-sided indirect shield earthing might be advisable. This can be achieved by using arrester modules of type BXTU ML2 ... S. The terminal 3, 3’ is connected to a lightning current carrying gas discharge tube and prevents compensating currents. Transient impulse currents on the shield are thus discharged via indirect shield earthing. |
 Operating voltage UN and superimposed signal voltage Usignal  Voltage protection level Up as a function of the operating voltage UN |
Further Models / Accessory:
 BXTU ML4 BD 0-180 |  BXTU ML2 BD S 0-180 |  Accessories |
BXTU ML4 BD 0-180
|  Basic circuit diagram BXTU ML4 BD 0-180 |  Diagram of the voltage protection level BXTU |
Space-saving combined lightning current and surge arrester module with actiVsense and LifeCheck technology for protecting teo pairs of galvanically isolated balanced interfaces with the same or a different operating voltage. Automatically detects the operating voltage of the wanted signal and optimally adapts the voltage protection level to it.
- Universal voltage type with actiVsense technology
- For installation in conformity with the lightning protection zones concept at the boundaries from 0A – 2 and higher
- With integrated LifeCheck monitoring function
| Type | ||
|---|---|---|
| Part No. | ||
| SPD class | ||
| SPD monitoring system | ||
| Operating voltage | UN | V |
| Frequency of the operating voltage | fUN | Hz |
| Max. continuous operating d.c. voltage | UC | V |
| Max. continuous operating a.c. voltage | UC | V |
| Permissible superimposed signal voltage | USignal | V |
| Cut-off frequency line-line (Usignal, balanced 100 ohms) | fG | MHz |
| Nominal current at 80° C (corresponds to max. short-circuit current) | IL | mA |
| D1 Total lightning impulse current (10/350 µs) | Iimp | kA |
| D1 Lightning impulse current (10/350 µs) per line | Iimp | kA |
| C2 Total nominal discharge current (8/20 µs) | In | kA |
| C2 Nominal discharge current (8/20 µs) per line | In | kA |
| Voltage protection level line-line for In C2 | Up | |
| Voltage protection level line-line at 1 kV/µs C3 | Up | |
| Voltage protection level line-line for Iimp D1 | Up | |
| Voltage protection level line-PG for C2/C3/D1 | V | |
| Series impedance per line | ohms | |
| Capacitance line-line | C | |
| Capacitance line-PG | C | |
| Operating temperature range | ||
| Degree of protection (with plugged-in protection module) | ||
| Pluggable into | ||
| Earthing via | ||
| Enclosure material | ||
| Colour | ||
| Test standards | ||
| SIL classification | ||
| Approvals | ||
| Amount | ||
| Options |
| BXTU ML4 BD 0-180 |
|---|
| 920 349 |
| M |
| LifeCheck |
| 0 - 180 |
| 0 - 400 |
| 180 |
| 127 |
| ≤ +/- 5 |
| 50 |
| 100 |
| 10 |
| 2.5 |
| 20 |
| 10 |
| see diagram, line C2 |
| see diagram, line C3 |
| ≤ UN + 53 V |
| ≤ 550 |
| ≤ 10 ohms; typically 7.5 |
| ≤ 80 pF |
| ≤ 16 pF |
| -40°C...+80°C |
| IP 20 |
| BXT BAS base part |
| BXT BAS base part |
| polyamide PA 6.6 |
| yellow |
| IEC 61643-21 / EN 61643-21, UL 497B |
| SIL1 / SIL2 *) |
| CSA, UL, GOST |
pc(s)  |
| Further Information |
BXTU ML2 BD S 0-180
|  Basic circuit diagram BXTU ML2 BD S 0-180 |  Diagram of the voltage protection level BXTU |
Space-saving combined lightning current and surge arrester module with actiVsense and LifeCheck technology for protecting one pair. Direct or indirect shield earthing. Automatically detects the operating voltage of the wanted signal and optimally adapts the voltage protection level to it.
- Universal voltage type with actiVsense technology
- For installation in conformity with the lightning protection zones concept at the boundaries from 0A – 2 and higher
- With integrated LifeCheck monitoring function
| Type | ||
|---|---|---|
| Part No. | ||
| SPD class | ||
| SPD monitoring system | ||
| Operating voltage | UN | V |
| Frequency of the operating voltage | fUN | Hz |
| Max. continuous operating d.c. voltage | UC | V |
| Max. continuous operating a.c. voltage | UC | V |
| Permissible superimposed signal voltage | USignal | V |
| Nominal current at 80° C (corresponds to max. short-circuit current) | IL | mA |
| D1 Total lightning impulse current (10/350 µs) | Iimp | kA |
| D1 Lightning impulse current (10/350 µs) per line | Iimp | kA |
| C2 Total nominal discharge current (8/20 µs) | In | kA |
| C2 Nominal discharge current (8/20 µs) per line | In | kA |
| Voltage protection level line-line for In C2 | Up | |
| Voltage protection level line-line at 1 kV/µs C3 | Up | |
| Voltage protection level line-line for Iimp D1 | Up | |
| Voltage protection level line-PG for C2/C3/D1 | V | |
| Series impedance per line | ohms | |
| Capacitance line-line | C | |
| Capacitance line-PG | C | |
| Operating temperature range | ||
| Degree of protection (with plugged-in protection module) | ||
| Pluggable into | ||
| Earthing via | ||
| Enclosure material | ||
| Colour | ||
| Test standards | ||
| SIL classification | ||
| Approvals | ||
| Amount | ||
| Options |
| BXTU ML2 BD S 0-180 |
|---|
| 920 249 |
| M |
| LifeCheck |
| 0 - 180 |
| 0 - 400 |
| 180 |
| 127 |
| ≤ +/- 5 |
| 100 |
| 9 |
| 2.5 |
| 20 |
| 10 |
| see diagram, line C2 |
| see diagram, line C3 |
| ≤ UN + 53 V |
| ≤ 550 |
| ≤ 10 ohms; typically 7.5 |
| ≤ 80 pF |
| ≤ 25 pF |
| -40°C...+80°C |
| IP 20 |
| BXT BAS base part |
| BXT BAS base part |
| polyamide PA 6.6 |
| yellow |
| IEC 61643-21 / EN 61643-21, UL 497B |
| SIL1 / SIL2 *) |
| CSA, UL, GOST |
pc(s) |
| Further Information |
Accessories
BXT BAS
 |
|  |
DRC MCM XT
 |
|  |
DRC LC M3+
 |
|