Hakel has developed a new insulation monitoring device. The HIG95-DELTA device is the leader in monitoring the insulation resistance of ungrounded single-phase IT power supply systems in healthcare. It controls the power supply in medical premises, which belong to group 2. These are the rooms, where power interruptions can endanger the patient, such as intensive care units, operating theaters. Our new product meets the conditions for use in ungrounded IT power supply systems in hospitals. The new model replaces the HIG95+ device. The difference from the previous model is that we have been able to significantly reduce its size and simultaneously extend its features.

This monitoring device can monitor the insulation resistance over a much wider range than before, now monitoring from 5 kΩ to 10 MΩ, which is more than sufficient with regards to the given fault limit of 50 kΩ. In the event of an insulation fault, resulting from a gradual degradation of the installation, it is possible to detect the fault well in advance.

The product has an integrated evaluation of the isolation transformer status. It monitors the current load by means of measuring transformers with a 5A standard industrial conversion. The temperature load control of the transformer is designed to connect up to three types of temperature sensors, which is not common elsewhere. One of the possibilities is the use of a resistance sensor, type PT100, thanks to which the temperature can be measured in Celsius degree.

The insulation monitoring device is equipped with a display showing the numerical value of the measured insulation resistance as well as the current and thermal load values of the isolation transformer. There are also control buttons for setting the parameters of the insulation monitoring device and signaling LED diodes for displaying the status of the monitored power supply system.

The pair of in-built signaling relays with switching contact allows remote signaling of insulation failure status of the monitored power supply system and transformer overload error. The product is designed for convenient mounting, connection and project engineering. The wide range of accessories is also available.

HAKEL is one of the dominant makers of Surge Protection Devices (SPD) in Europe over the last decade. It offers a comprehensive range of surge and lightning arresters for protection against overvoltages. These include devices to protect AC networks of various voltage levels and also special systems for data lines and telecommunication devices and protective modules for process measurement and control systems. Hakel SPDs specialise particularly in telecommunication devices with and extensive list of project references in various nations. 

Lightning Arresters – Type 1

Lightning Arresters – Type 1 and 2

Surge Arresters – Type 2

PV Protection

Complete range of Lightning and Surge arrester for protection of Photovoltaic Systems. These arresters are recommended for use in the Lightning Protection Zones Concept at the boundaries of LPZ 0-2 (according to IEC 1312-1 and EN 62305) for equipotential bonding of positive and negative busbars of photovoltaic systems and elimination of transient overvoltage that originate during atmospheric discharges or switching processes.

With the increasing sophistication of today’s electronic systems, the need for reliable, uninterrupted operation is essential. The effect of lightning induced surge or overvoltage entering any of these systems can be catastrophic.

By fitting HAKEL Surge Protection Devices in series with all incoming data, telecommunications, instrumentation, LWAN, antenna and system control equipment lines, transient overvoltages can be reduced to an acceptable level. All protectors are designed to offer high protection to the line without affecting the performance or degrading the signal.

Innovated coaxial high-frequency protection ranges KO-*P and KO-*GN are designed for protection of equipment connected to an aerial system by means of coaxial cables. A wide range of coaxial protectors can be used in various applications. 

PI-k range are 2-stage, single/three phase surge protection devices with a high frequency filter. They are designed for protection of electronic appliances in low voltage supply systems against impulse surge and against high-frequency disturbances. 

The filters are intended for: 

• Single Phase: 8 – 32A 
• Single Phase: 32 – 150A 
• Three Phase: 16 – 80A 

Portable service equipment intended for a quick diagnostic of operation efficiency of HAKEL Surge Protection Devices. 

• Testing of SPD (Power Supply)
• Testing of Data SPD 
• Lightning Impulse Counter 

An explosion-proof gas discharge tube with flexible connecting cable for equipotential bonding in accordance with IEC 61024-1 and also for the use in IT installations in accordance with IEC 60364-5-54. It is recommended for insulated flanges and insulated screw joints bridging in cathodic protected parts of industrial technology.