Page 160 - Surge-Protection-E_0.pdf

Pluggable SPDs – DIN Rail Mounted

BLITZDUCTORconnect – Modular
• Universal lightning current and surge arrester
– For protecting measuring and control circuits, bus and tele-
communication systems
– High total discharge capacity of 3 kA (10/350 µs), 10 kA (8/20 µs)
– Max. impulse current carrying capability (8/20 µs) Imax up to 20 kA
– Low voltage protection level, also capable of protecting terminal
equipment
• Arrester consisting of a module and base part
– Fast and simple cable connection thanks to push-in connection
Pluggable SPDs – DIN Rail Mounted – All protection components integrated in the module
technology
– secR release buttons on both sides for safe module replacement
– High system availability thanks to fail-safe performance
BLITZDUCTORconnect for protecting measuring and control systems • Function-optimised design with a width of 6 mm
– LifeCheck and visual status indication integrated in the module
– Simple remote signalling of the status with the help of an
optional remote signalling unit
– Tool-free signal disconnection for maintenance purposes
– Vibration and shock-tested for safe operation

The combined lightning current and surge arresters of the BLITZDUCTOR- The arresters of the BLITZDUCTORconnect series are equipped with a me-
connect series are designed for universal use and system protection in chanical status indication which clearly shows the status of the arrester
industrial environments, at information technology signal interfaces, and (green or red indicator flag). In the event of overload, the red flag indicates
in the field of automation or measuring and control technology: which arrester in the group needs replacing. System protection is quickly
Thanks to their high lightning current discharge capacity and low voltage restored without the need for tools simply by replacing the module. It is
protection levels, they optimally meet the requirements for reliably pro- no longer necessary to use additional test devices or to remove modules
tecting terminal equipment. for testing purposes.
The arresters are available in different types and protect two single lines Optionally, arrester groups can be monitored using a built-in remote sig-
sharing a common reference potential (unbalanced interfaces) or one un- nalling unit. The status is reported to a higher-level control system via a
earthed pair (balanced interface). An arrester with a high cut-off frequen- floating break contact. The combination of transmitter and receiver unit
cy is available for balanced bus interfaces with high data rates (e.g.: in a single device minimises the wiring effort when installing the remote
Profibus, RS485), an Ex approved version (dust and gas) for intrinsically signalling unit. At the same time, there is no need for additional parame-
safe signal circuits. terisation of the modules.
The modular design consisting of a base part and protection module al- A defined fail-safe function (fail-open) disconnects the overloaded com-
lows easy handling and maintenance of the arresters. All protective com- ponents (decoupling impedance, fine protection) from the signal circuit.
ponents are integrated in the module in a space-saving 6 mm wide hous- However, the signal circuit itself remains active and is not interrupted. The
ing. This facilitates simple and quick replacement in the event of mainte- system circuit remains available and operation is maintained until the
nance, thus restoring the protective function of the system without the arrester is replaced. In this way, plants and systems can be operated safe-
need for rewiring. The module locking mechanism is vibration and ly and are highly available at all times.
shock-tested and allows safe operation even in demanding environments. The arresters also feature a disconnection function which makes it possi-
ble to interrupt the signal circuit during maintenance (e.g. for measure-
ments). The signal circuit is interrupted by turning the protection module
The cables are connected using the vibration-proof push-in connection by 180° and inserting it into the base part. Consequently, measurements
technology. For connection, stripped solid and flexible conductors with can be carried out quickly and easily – without the need to use tools or
wire end ferrules can be clamped and contacted quickly, easily and with- install disconnect terminals.
out tools. When rewiring, the conductor is freed from the clamping point
by pressing the release button and reclamped into the appropriate termi- Arresters with approval for Ex applications and other accessories, e.g.
nal. Holes in the housing at each conductor terminal allow measurements PARTITION EXI for disconnecting intrinsically safe and non-intrinsically
in the signal circuit using test probes. safe signal circuits, round off the product portfolio.

Quickly tested – at a glance Securely locked – precisely removed Connect = Protect Maximum system availability
Integrated indication for easy and fast secR release buttons on both sides for Simple status message with monitor- Approvals for use in intrinsically safe
maintenance safe handling ing unit for arrester groups measuring circuits

156 You will find detailed product information on our website Valid as of August 1, 2020