ZOTUP S.R.L

Industry leader in lightning and surge protection systems, for over 30 years ZOTUP S.r.l. has been producing and selling a wide range of high quality SPDs, proudly Made in Italy. Consistently collaborating with designers, distributors, and installers, it offers extremely high-performance and reliable surge protection devices, accompanied by a widely experienced and always available technical service. Protected by four international patents resulting from 330 laboratory tests, ZOTUP SPDs are studied for a wide range of applications, making them suitable for several types of protection needed. The products comply with IEC and EN standards and benefit from the KEMA-KEUR International Quality Label.

ZOTUP values are simple

  1. SECURITY: Protecting people, their property and their work is the main priority, ensuring cutting-edge solutions that anticipate new safety standards.
  2. QUALITY: A constant element in all ZOTUP products, strictly Made in Italy.
  3. INNOVATION: The constant development is the lifeblood of ZOTUP, generating innovation, the true response to the needs of every customer.

The unique technical features of ZOTUP SPDs

Integrated Fuse Function (ff)

Function that guarantees, at the end of the life of the unloader, the open circuit failure mode without the adoption of back-up fuses placed in series. The elimination of fuses with MCB 160 A (internal or external) and fuse connection cables avoids the tedious evaluation of the fuse, improves the overall protection level and reduces the size of the enclosure.

Advantages

  • • Maintaining the full discharge capability of the SPD. An external fuse or disconnector may influence/limit this capability;
  • • The overall voltage drop across the SPD branch circuit and therefore the effective voltage protection level for the installation and equipment is kept to a minimum, as there are no additional devices and the wiring can be kept very short;
  • • No additional costs for external disconnectors, less time for cabling and a smaller ecologic footprint

Progressive Performance Indicator

ZOTUP SPDs allow to monitor their level of degradation both locally, through the progressive performance status indicator, and remotely through a remote signal contact where present, which is activated when the minimum performance status is reached. This has led to a significant change from late end-of-life information to a prior one, which allows to replace the SPD on time. This information is of fundamental importance, as it allows to prevent possible damages to plants and appliances.

Advantages

  • • Progressive indication of the reduction in performance of the SPD allows preventive maintenance and optimization of replacement decisions
  • • Remote indication for SPDs incorporating a changeover contact is activated when the performance reaches its minimum state (totally yellow). Therefore, the remote alarm is preventive, meaning the SPD is still operational, able to protect at a minimum performance level

Pollution Degree 3

This feature allows the use ZOTUP SPDs even in environments particularly severe due to the presence of conductive elements such as dust, salt, moisture and condensate. In the presence of conductive pollution, SPDs can suffer serious damage, even in the absence of surges. These SPDs meets the requirements of the Pollution Degree 3 up to 400 V and goes beyond the Temperature Extended Range thanks to intensive material research and a specifically oriented design.

Advantages

  • • Improved reliability when installed in "heavy" environments.
  • • Enabling applications that cannot be covered with a lower pollution or normal temperature range.

SURGE PROTECTIVE DEVICE

1. SPDs for Low Voltage Alternating Current Applications

Typical use: in TN-C, TN-S, TT- or IT-systems with connection type CT1 (4+0, 3+0 and 2+0) or with connection type CT2 (1+1 or 3+1 connection) according to HD 60364-5-534. They are generally installed as close as possible to the origin of the installation, e.g. in Main Distribution Boards (MDBs), as well as in Sub Distribution Boards (SDBs).

Features

  • • They are equipped with an internal disconnector with short circuit breaking capability. Therefore, in many applications they do not require a backup fuse as an external disconnector.
  • • They provide a progressive indicator showing the remaining performance, which simplifies maintenance and facilitates the planning of replacement during regular verifications and checks.
  • • They are designed for Pollution Degree 3, which makes them suitable for a wide range of applications in domestic as well as industrial installations and many other locations with increased environmental conditions

2. SPDs for Alternating Current with additional interference filter

These SPDs provide protection damage from direct and indirect discharges with additional filtering to reduce high frequency electromagnetic interferences. Ideal for data center, CED and DCS protection.

3. SPDs for Direct Current and Photovoltaics Systems

Typical use: in TN-C, TN-S, TT- or IT-systems with connection type CT1 (4+0 and 3+0) or with connection type CT2 (1+1 or 3+1 connection) according to HD 60364-5-534. They are generally installed as close as possible to the origin of the installation, e.g. in Main Distribution Boards (MDBs), as well as in Sub Distribution Boards (SDBs).

Features

  • • They are equipped with an internal disconnector with short circuit breaking capability. Therefore, in many applications they do not require a backup fuse as an external disconnector.
  • • They provide a progressive indicator showing the remaining performance, which simplifies maintenance and facilitates the planning of replacement during regular verifications and checks.
  • • They are designed for Pollution Degree 3, which makes them suitable for a wide range of applications in domestic as well as industrial installations and many other locations with increased environmental conditions.

4. SPDs for LED Lighting

LLP (LED Lighting Protection) system is a ready-to-install assembly of a voltage limiting and a voltage switching SPD, providing two modes of protection in a protective housing for the installation inside the opening at the pole base, with the following features and benefits:

  • • Combination type SPD for the protection of street lighting luminaires against direct and indirect lighting effects.
  • • Backup protection is not required with an upstream CB≤160 A or up to an Isccr ≤ 5kA rms.
  • • Easy wiring inside of the openings at the pole base with a size 186x45mm (minimum diameter of the pole 101mm).
  • • The special SPD case materials allow to match with “Pollution Degree3” requirements.

5. SPDs for Data Transmission

SPDs for the protection of network equipment (HUBs/SWITCHES) in structured cabling systems in category 6.

  • • SPDs with impulse ratings for categories C1, C2, C3 and D1 (according to IEC/EN 61643-21).
  • • SPDs for rack and/or rail mounting to enable easy installation, even in existing systems.

6. SPDs for Signalling and Telecommunications Networks

Typical installation: in series with the signalling/telecommunication circuits for equipment with “low resistibility” according to Recommendation ITU-T K.45 / “low surge immunity” according to IEC/EN 61000-4-5.

  • • SPDs with impulse ratings for C1, C2, C3 and D1 categories (according to IEC/EN 61643-21).
  • • SPDs with common mode and differential mode protection against symmetrical and/or asymmetrical disturbances.
  • • SPDs with disconnecting means in case of accidential contact between the signal/telecommunication circuits and a power line (eg. 230/400V AC) due to isolation faults.
  • • SPDs with integrated earth/protective ground connection via the 35 mm top hat DIN rail and by screwless spring type termination of the cable screen.
  • • SPDs with RJ and LSA connectors.

7. Isolating Spark Gaps

ISGs are in accordance with the standards EN 50164-3 / IEC 62561-3 and are used for indirect bonding of a lightning protection system to nearby metal systems, where a direct bond is not permissible for functional reasons, e.g.:

  • For the protection of isolating joints in systems provided with cathodic protection or stray current systems.
  • For service entry masts for low voltage overhead lines.
  • For the protection of insulating flanges of pipelines.
  • In the proximity of railway systems.

 

They provide the following features and benefits:

  • • Monolithic explosion proof protection.
  • • High level of protection and high isolation resistance against induced voltages or voltages injected by cathodic protection systems.
  • • High short circuit current withstands.

8. Surge Arresters for High Voltage Systems

Typical use: high voltage surge arresters for the protection of HV/MV transformers, switches and power transmission lines. Designed, produced and tested in accordance with the IEC standard.

  • • High voltage surge arrester with ceramic insulator, class 2, 3, 4 and 5.
  • • High voltage surge arrester with silicone rubber housing, class 2, 3 and 4. Executions with insulator applied with different technologies: wound directly on active elements, wound on previously caged active elements, wound on a glass fibre reinforced polycarbonate tube.
  • • High voltage surge arrester for power transmission lines in “hanging” execution in class 2 and 3.
  • • Analysis accessories: impulse counter in counter version for quantitative stress analysis and in counter + milliamperometer version for quantitative and qualitative stress analysis. Leakage current indicators based on the evaluation of the third harmonic and the actual peak value of the leakage current for a detailed qualitative analysis of the stresses.