Technical connection conditions of test-disconnect terminal blocks

Test terminals for the connection of meter mounting board with semi-indirect measurement under the specifications of the technical connection conditions (TAB)

Technical connection conditions of test-disconnect terminal blocks

Technical connection conditions (TAB) as the basis for the smart energy transformation

Technical connection conditions (TAB) and the standardization of semi-indirect measurements (transformer circuits) by means of insulated banana plugs are an important component for the energy transformation. Whether through TAB Medium Voltage or Technical Connection Conditions Medium Voltage or TAB Low Voltage, the specified conditions save costs, simplify work and increase the safety of the switchgear.

In this context, conditions refer to the requirements of the distribution grid operators for the electrical system of the grid connection user, from the medium-voltage grid via the low-voltage grid to the grid connection of the consumers, in compliance with various standards such as DIN EN 60947-7-1, DIN VDE 0603-2-1:2017-06, VDE 0603-2-2:2017-12 or also VDE-AR-N 4100:2019-04 (TAR Medium Voltage).

Highlights of the Klippon® Connect TTB range

Captive components

All function-relevant and safety-relevant components are captively connected to the terminal block. This increases the reliability of the current transformer and voltage converter circuits during installation and maintenance work.

Reliable comparative measurement

A patented CM (Comparative Measurement) lever link allows two instrument transformer terminal blocks to be selectively separated to connect a calibrated measuring device. After the measurement, the captive lever is returned to its original position, with the "make before break" contact remaining active.

Effective safety cover system

The transparent safety cover system protects and seals the entire assembly including the instrument transformer terminal blocks. It is available either as a full-length profile or as an individual cover. It can only be fixed into place when all connection components are in their initial position.

New "make before break" functionality

The combination of disconnecting lever, short-circuit bridge and lever link in a single system guarantees that the secondary wiring of a current transformer is short-circuited before the longitudinal disconnection takes place. This "make before break" contact can be realised for up to four connections.

Pre-assembled terminal strips according to the specifications of the technical connection condition TAB

In accordance with the technical connection conditions of TAB NS Nord 2019 (22-pole)

The "TAB NS Nord 22" terminal strip is structured in accordance with the standard wording for technical connection conditions under the title "TAB NS NORD 2019" (TAB 2019). It is responsible for the connection and operation of plants on the low-voltage grid in the area of the BDEW regional group Northern Germany together with the BDEW regional group Berlin/Brandenburg. The terminal blocks are designed with the PUSH IN connection technology. Please always refer to the supplementary sheets of the respective grid operator.

In accordance with the technical connection conditions of TAB NS Nord 2019 (22-pole)
Application area of the terminal strip:
  • Celle-Uelzen electricity grid
  • E.DIS electricity grid
  • EVE electricity grid
  • EWE electricity grid
  • LSW electricity grid
  • Schleswig-Holstein electricity grid
  • Hamburg electricity grid
  • Berlin electricity grid
  • WEMAG electricity grid
  • Bremen Weser electricity grid
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In accordance with the technical connection conditions of TAB NS Nord 2019 (pluggable 22-pole)

The "TABNSNORD22STECKBAR" terminal strip is designed in accordance with the standard wording for technical connection conditions under the title "TAB NS NORD 2019" (TAB 2019). It is responsible for the connection and operation of plants on the low-voltage grid in the area of the BDEW regional group Northern Germany together with the BDEW regional group Berlin/Brandenburg. The terminal blocks are designed with the PUSH IN connection technology. Please always refer to the supplementary sheets of the respective grid operator.

In accordance with the technical connection conditions of TAB NS Nord 2019 (pluggable 22-pole)
Application area of the terminal strip:
  • Avacon Netz GmbH
  • Celle-Uelzen electricity grid
  • E.DIS electricity grid
  • EVE electricity grid
  • EWE electricity grid
  • LSW electricity grid
  • Schleswig-Holstein electricity grid
  • Hamburg electricity grid
  • Berlin electricity grid
  • WEMAG electricity grid
  • Bremen Weser electricity grid
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In accordance with the technical connection conditions of TAB NS Nord 2019 (14-pole)

The "TAB NS Nord 14" terminal strip is structured in accordance with the standard wording for technical connection conditions under the title "TAB NS NORD 2019" (TAB 2019). It is responsible for the connection and operation of plants on the low-voltage grid in the area of the BDEW regional group Northern Germany together with the BDEW regional group Berlin/Brandenburg. The terminal blocks are designed with the PUSH IN connection technology. Please always refer to the supplementary sheets of the respective grid operator.

In accordance with the technical connection conditions of TAB NS Nord 2019 (14-pole)
Application area of the terminal strip:
  • Celle-Uelzen electricity grid
  • E.DIS electricity grid
  • EVE electricity grid
  • EWE electricity grid
  • LSW electricity grid
  • Schleswig-Holstein electricity grid
  • Hamburg electricity grid
  • Berlin electricity grid
  • WEMAG electricity grid
  • Bremen Weser electricity grid
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In accordance with the technical connection conditions of TAB NS Nord 2019 (pluggable 14-pole)

The "TABNSNORD14STECKBAR" terminal strip is structured in accordance with the standard wording for technical connection conditions under the title "TAB NS NORD 2019" (TAB 2019). It is responsible for the connection and operation of plants on the low-voltage grid in the area of the BDEW regional group Northern Germany together with the BDEW regional group Berlin/Brandenburg. The terminal blocks are designed with the PUSH IN connection technology. Please always refer to the supplementary sheets of the respective grid operator.

In accordance with the technical connection conditions of TAB NS Nord 2019 (pluggable 14-pole)
Application area of the terminal strip:
  • Celle-Uelzen electricity grid
  • E.DIS electricity grid
  • EVE electricity grid
  • EWE electricity grid
  • LSW electricity grid
  • Schleswig-Holstein electricity grid
  • Hamburg electricity grid
  • Berlin electricity grid
  • WEMAG electricity grid
  • Bremen Weser electricity grid
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Current and voltage terminal blocks for three-point meter stations according to VDE FNN Product innovation

Pre-assembled terminal strip according to VDE FNN specifications - With PUSH IN connection technology

The "VDE FNN" terminal strip is designed in accordance with the "VDE FNN note for meter stations with semi-indirect measurements up to 1000 A in low voltage (for transformer systems)". It refers to version 1.0 from June 2022 and is used to standardize semi-indirect measurements (transformer measurements). This note is to be applied together with VDE-AR-N 4100:2019 and VDE-AR-N 4100 authorization 1:2019. The terminal blocks are designed with the PUSH IN connection technology.

Current and voltage terminal blocks for three-point meter stations according to VDE FNN
For use throughout Germany in accordance with the "Note from VDE FNN for meter stations with semi-indirect measurements up to 1000 A in low voltage (for transformer systems)".
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Current and voltage terminal blocks for three-point meter stations according to VDE FNN Product innovation

Pre-assembled terminal strip according to VDE FNN specifications - With PUSH IN connection technology

The "VDE FNN" terminal strip is designed in accordance with the "VDE FNN note for meter stations with semi-indirect measurements up to 1000 A in low voltage (for transformer systems)". It refers to version 1.0 from June 2022 and is used to standardize semi-indirect measurements (transformer measurements). This note is to be applied together with VDE-AR-N 4100:2019 and VDE-AR-N 4100 authorization 1:2019. The terminal blocks have a screw connection.

Current and voltage terminal blocks for three-point meter stations according to VDE FNN
For use throughout Germany in accordance with the "Note from VDE FNN for meter stations with semi-indirect measurements up to 1000 A in low voltage (for transformer systems)".
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In accordance with the technical connection conditions of EAM Netz GmbH

The “VDEFNNPUSHINEAMNETZ“ terminal strip is structured in accordance with the standard wording for technical connection conditions under the title “TAB NS“. It is responsible for the connection and operation of systems on the low-voltage grid in the area of EAM NETZ GmbH in Hessen as well as in Southern Lower Saxony and parts of North Rhine-Westphalia, Thuringia and Rhineland-Palatinate. The terminal blocks are designed with the PUSH IN connection technology. Please always refer to the supplementary sheets of the respective grid operator.

In accordance with the technical connection conditions of EAM Netz GmbH
Application area of the terminal strip:
  • Celle-Uelzen electricity grid
  • E.DIS electricity grid
  • EVE electricity grid
  • EWE electricity grid
  • LSW electricity grid
  • Schleswig-Holstein electricity grid
  • Hamburg electricity grid
  • Berlin electricity grid
  • WEMAG electricity grid
  • Bremen Weser electricity grid
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In accordance with the technical connection conditions of TAB Syna GmbH

The "TAB Syna change panel" terminal strip is designed in accordance with the requirements of Syna GmbH for the Wechseltafel-application. This design is for the low-voltage range in the Syna power grid purely for Wechseltafel. For standard DIN meter cabinets, we offer another TAB from Syna GmbH. The terminal blocks are designed with the PUSH IN connection technology. Please always refer to the supplementary sheets of the respective grid operator.

In accordance with the technical connection conditions of TAB Syna GmbH
Areas of application for the terminal strip: Syna GmbH and the regions: Rhineland-Palatinate, Hesse, Bavaria and Baden-Württemberg
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In accordance with the technical connection conditions of Westnetz GmbH

The “TAB Westnetz“ terminal strip is structured in accordance with the standard wording for technical connection conditions under the title Zählerwechseltafel“. It is responsible for the connection and operation of systems on the low-voltage grid in the region of Westnetz GmbH, mainly in North Rhine-Westphalia. The terminal blocks are designed with the screw connection technology. Please always refer to the supplementary sheets of the respective grid operator.

In accordance with the technical connection conditions of Westnetz GmbH
Application areas of the terminal strip: Westnetz GmbH Regions Lower Saxony, North Rhine-Westphalia, Rhineland-Palatinate.
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In accordance with the technical connection conditions of TAB Netze BW (Niederspannung / NS)

The “AB Netze BW“ terminal strip is structured in accordance with the standard wording for technical connection conditions under the title “TAB BW 2019“. It is responsible for the connection and operation of systems on the low-voltage grid in the area of Netze BW in Baden-Württemberg. The terminal blocks are designed with the PUSH IN connection technology. Please always refer to the supplementary sheets of the respective grid operator.

In accordance with the technical connection conditions of TAB Netze BW (Niederspannung / NS)
Areas of application for the terminal strip: Netze BW GmbH (Baden-Württemberg)
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In accordance with the technical conditions for connection TAB 2023 MITNETZ

The "MSTTAB2019ORANGE" terminal strip is in accordance with the standard wording "Supplement to TAB 2023 of BDEW for connection to the low-voltage grid" of MITNETZ. It is responsible for the connection and operation of systems on the low-voltage grid in the area of the BDEW regional group in the electricity grid of Mitteldeutsche Netzgesellschaft Strom mbH. The terminal blocks are equipped with screw connection technology. Please always refer to the supplementary sheets of the respective grid operator.

In accordance with the technical conditions for connection TAB 2023 MITNETZ
Application areas of the terminal strip: Mitteldeutsche Netzgesellschaft Strom mbH (Mitnetz Strom) in the regions of Brandenburg, Saxony-Anhalt, South Saxony and West Saxony.
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In accordance with the technical connection conditions of TAB 2023 MITNETZ

The "MSTTAB2019ORANGE ATTB" terminal strip is in accordance with the standard wording "Supplement to TAB 2023 of BDEW for connection to the low-voltage grid" of MITNETZ. It is responsible for the connection and operation of systems on the low-voltage grid in the area of the BDEW regional group in the electricity grid of Mitteldeutsche Netzgesellschaft Strom mbH. The terminal blocks are designed with the PUSH IN connection technology. Please always refer to the supplementary sheets of the respective grid operator.

In accordance with the technical connection conditions of TAB 2023 MITNETZ
Application areas of the terminal strip: Mitteldeutsche Netzgesellschaft Strom mbH (Mitnetz Strom) in the regions of Brandenburg, Saxony-Anhalt, South Saxony and West Saxony.
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Current and voltage terminal blocks for 3-phase current and voltage transformers

Pre-assembled terminal strip for 3 current and voltage transformers with N and PE connection - With PUSH IN connection technology

The "LST_CTVT_3PHASEPEATTB" terminal strip is a setup for 3 current and voltage transformers with N and PE connection. The 3 phases are color coded on the current transformer side with yellow (L1), green (L2) and violet (L3). In addition, the structure has the forced short-circuit function (MBB - Make Before Breake) and comparison measurement function. These two functions and all other features are demonstrated in the video linked here. The terminal blocks are designed with the PUSH IN connection technology.

Current and voltage terminal blocks for 3-phase current and voltage transformers
Colored setup for 3 phases for general use
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Current and voltage terminal blocks for 3-phase current and voltage transformers

Pre-assembled terminal strip for 3 current and voltage transformers with N and PE connection - With screw connection technology

The "LST_CTVT_3PHASEPEWTTB" terminal strip is a setup for 3 current and voltage transformers with N and PE connection. The 3 phases are color coded on the current transformer side with yellow (L1), green (L2) and violet (L3). In addition, the structure has the forced short-circuit function (MBB - Make Before Breake) and comparison measurement function. These two functions and all other features are demonstrated in the video linked here. The terminal blocks are designed with the screw connection technology.

Current and voltage terminal blocks for 3-phase current and voltage transformers
Colored setup for 3 phases for general use
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Current terminal blocks for 3 current transformers

Pre-assembled terminal strip 3 phase for current transformers - With PUSH IN connection technology

The terminal strip "LST_CT_3PHASE_ATTB_OR" is an assembly of 6 terminals for 3 current transformers. The 3 phases have the has the forced short-circuit function (MBB - Make Before Breake) and comparison measurement function. These two functions and all other features are demonstrated in the video linked here. The terminal blocks are designed with the PUSH IN connection technology.

Current terminal blocks for 3 current transformers
Setup for 3 phases for general use
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Current terminal blocks for 3 current transformers

Pre-assembled terminal strip 3 phase for current transformers - With screw connection technology

The terminal strip "LST_CT_3PHASE_ATTB_OR" is an assembly of 6 terminals for 3 current transformers. The 3 phases have the has the forced short-circuit function (MBB - Make Before Breake) and comparison measurement function. These two functions and all other features are demonstrated in the video linked here. The terminal blocks are designed with the screw connection technology.

Current terminal blocks for 3 current transformers
Setup for 3 phases for general use
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TO DATA-SHEET

Further information on the topic of technical connection conditions and test terminals

Klippon® Connect TTB range for instrument transformer wiring

Enhances safety in all stages of your processes: From planning to installation and operation.

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Downloads on the topic of technical connection conditions and test terminals

On the website Engineering Data you will find an extensive selection of downloads related to CAT data. For the quick integration of our products into your design, a wide range of digital product data is available for engineering systems such as EPLAN (EPLAN Electric P8 and EPLAN Pro Panel), Zuken E3.series, WSCAD and many others. This data enables a precise representation of the measuring transformer terminals and test disconnect terminals in 3D and shows all relevant electrotechnical and operational characteristics.

Consulting & Support

Peter Croucher

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