INSTALLATION CONNECTORS 

gesis® CLASSIC 
GST CONNECTOR

This is the connector system for quick, easy, and safe installation. It meets all the requirements of modern energy distribution.

gesis® CLASSIC

FUTURE-PROOF ELECTRICAL INSTALLATION

Industrially prefabricated and durable components impress with 70% time and 30% cost savings! The comprehensive gesis® CLASSIC product range enables easy, cost-effective, and future-proof electrical installation from distribution to consumption. Project-specific distribution boxes for decentralized power supply and building automation, along with directly mountable modular KNX components, complement our installation system.

THE WIELAND SOLUTION: DECENTRALIZED ELECTRICAL INSTALLATION

  • Creates simple, future-proof structures
  • More net floor area due to smaller technical rooms
  • Room automation devices are located in the respective room
  • Protective/switching devices are in system distributors on site

 

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OUR GESIS® CLASSIC CONNECTOR SYSTEM IS 
THE BEST CHOICE FOR YOUR NEEDS

MODULAR 
SYSTEM KIT

With our standardized gesis® interface, we offer a modular system kit for all electrical connections. Whether for stationary lighting, temporary devices, or various power and data connections – gesis® always provides the right products.

SECURITY 
THROUGH CODING

The color-coded and mechanical coding of all systems minimizes the risk of misconnections during initial installation as well as changes and expansions. Additionally, all unconnected connections are standardly touch-protected and can be securely closed with covers.

FUTURE-PROOF 
AND FLEXIBLE

As a market leader with years of experience, we offer high contact reliability, long service life, and availability. Our products enable easy installation for future modifications and expansions while adhering to strict environmental standards during manufacturing.

COMPLIANT INSTALLATION

Our gesis® components are secured according to IEC EN 61535 to prevent unintended detachment. Certified quality and safety according to international standards, with color-coded and mechanical coding to avoid misconnections.

PRACTICAL APPLICATIONS 
OF THE GESIS® CLASSIC CONNECTOR SYSTEM

LIGHTING

LIGHTING CABLING - SWITCHED

Our solution with 3-pole wiring to the luminaires and an option for a 5-pole infrastructure for supply is typically installed in suspended ceilings and partially in hollow walls. Distribution is carried out via plug-in distribution blocks, and control is managed through decentralized room or building automation. With gesis® CLASSIC, the entire lighting can be executed in a plug-in manner. Switches or push buttons can also be integrated in a plug-in manner via switch distributors if required. The connection technology of the luminaires can be chosen flexibly.

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LIGHTING CABLING - REGULATED, DALI OR 1-10 V

The suitable system from Wieland Electric consists of a 5-pole wiring, which is typically installed in suspended ceilings and partially in hollow walls. With a combination of gesis® CLASSIC and our flat cable solution gesis® NRG, a 7-pole infrastructure wiring, e.g., for extensive DALI systems, can be realized. The connection technology of the luminaires can be chosen flexibly. For large-scale applications with long cable lengths, a 7-pole gesis® NRG flat cable is also available for combining three-phase current and dimming signals.

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ENERGY SUPPLY

WORKPLACE SUPPLY

With our solutions, you can realize a 3-pole wiring for the flexible and cascaded supply of (multiple) sockets in desks, furniture, and shelves. The various versions of gesis® NRG flat cables supply floor tanks with and without decentralized protection. The plug-in electrical installation can also be continued in furniture, creating clear interfaces and providing safety.
 

FLOOR BOX SUPPLY

Smaller systems are supplied via 3-pole wiring with round cables and distribution blocks. If more extensive or extended systems are to be supplied, our gesis® NRG flat cable 5G2.5/4 mm² is the ideal solution for structured supply of the floor tanks. The three-phase current supply up to shortly before the floor tanks ensures reduced energy consumption. The availability of multiple cable colors facilitates the separation of networks (power/data or audiovisual/security). The 3-pole, plug-in tap-offs with free phase selection also enable flexible load distribution. Floor tanks are available directly from various system partners in plug-in design ex-works. Upon request, they can also be supplied with decentralized protective devices (MCB, RCCB/MCB).

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DADO TRUNKING

Baseboard ducts demonstrate their strengths wherever flexibility is required. Our gesis® NRG flat cables 5G2.5/4 mm² provide you with flexibility. Thus, an energy-efficient and easy-to-install solution for three-phase current supply up to shortly before the socket is available. Thanks to different cable colors, the separation of networks (power/data or audiovisual/security) is facilitated. The 3-pole, plug-in tap-offs with free phase selection also enable flexible load distribution.

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SUNSHADE SYSTEMS AND SUN PROTECTION

WINDOW BLINDS (KNX, SMI)

The direct wiring between control and conventional drives is carried out using 4-pole gesis® CLASSIC variants. When modern SMI drives are used, the wiring to the drives is implemented using 5-pole gesis® CLASSIC round cables or gesis® NRG flat cables, in which control signals and power are conducted together. With the decentralized KNX system gesis® FLEX, the effort for the wiring of sun protection systems can be extremely reduced. Ideally, these actuators are supplied via a 7-pole gesis® NRG flat cable, which provides both three-phase current and the KNX network.

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configurate your individual solution 
with our GESIS® PLAN planning software

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FOUR ESSENTIAL GESIS® SYSTEM COMPONENTS, 
ONE PERFECT SOLUTION

DESIGNED FOR SEAMLESS INTEGRATION:

Our electrical installation system, consisting of connectors, pre-assembled cables, distributors, and device connections, is designed to implement any project effortlessly and error-free. Each component is precisely tailored to its task to ensure seamless integration.

CONNECTORS

Connectors serve as the basic element of plug-in electrical installations. They are used in facilities to make initial connections or to connect cables that cannot be pre-assembled and brought into the construction, such as when cables are pulled through pipes. Our systems are installation connector systems approved according to IEC EN 61535.

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PRE-ASSEMBLED CABLES

Pre-assembled cables enable extremely fast and error-free installation. They are available in various pole numbers, cross-sections, cable types, lengths, and with different connectors. Wieland manufactures pre-assembled cables industrially, ensuring quality tested pieces on the construction site.

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DISTRIBUTORS

The exclusive use of connectors and cables would only allow for 1:1 connections in a star structure. Our diverse distribution elements with various geometric layouts and different input/output combinations enable an effective, clear, and flexible tree structure.

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DEVICE CONNECTIONS

Device connections can be directly integrated into equipment such as lights or system distributors. They serve as the interface from the plug-in electrical installation to the end user. The connections can be integrated as soldering parts on the circuit board or in screw/spring-loaded versions into the product housing.

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TECHNICAL DATA

Number of poles3, 4, 5 and 6-pole
Available system componentsPlug connectors, device connectors, distributors, intermediate couplings, cable assemblies
Rated current20 A
Rated voltage50 V / 250 V or 250 V / 400 V (depending on coding and number of poles)
Locking mechanismSelf-locking, release using tool
Product standardsIEC61535, IEC60320, UL1977, CSA Std. C 22.2 No. 182.3(More detailed descriptions and product assignments can be found in our Shop)
Protection ratingIP20 unplugged
IP40 plugged or covered with caps that can be ordered separately
Ambient temperature-5 °C to +40 °C
CodingsDifferent mechanical and color codings distinguish between the various applications and prevent mismating. Pay attention to differing rated voltages!
Construction Products RegulationShow list

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FAQ

What is the rated voltage of the system?

AC 250/400 V - at selected codings 50 V.

What is the rated current of the system?

20 A - in selected codings 6 A and 13 A.

In which pole numbers is the system available?

3-/ 4-/ 5-/ 6-pole.

What is the connection cross-section area?
  • Fine-stranded conductors without ferrules 0.5 mm² to 2.5 mm²
  • Fine-stranded conductors with ferrules 0.5 mm² to 2.5 mm², depending on the connection type
  • Solid conductors from 0.5 mm² to 4 mm²
What types of connections are there?

Screw, spring-force, and solder connections.

What is the IP protection rating?

IP40 when plugged in.

Can I connect fine-stranded conductors?

Yes. The screw terminals of all gesis® CLASSIC connectors are suitable for connecting unprepared conductors (without ferrules) according to IEC EN 60999-1.

How many codings are available?

Depending on the number of poles, up to seven different, color-coded, mechanical codings are available.

How many mating cycles are there?

The connectors are approved according to IEC EN 61535, with a requirement of 100 insertions without load.

Is the system suitable for DC applications?

DC applications are possible within certain specifications; these must be coordinated with WIELAND.

Are gesis® installation connectors compatible with installation connectors from other manufacturers?

Installation connectors according to IEC EN 61535 are connectors for establishing a permanently pluggable electrical installation in buildings and are neither intended for connecting or disconnecting under load nor for connecting or disconnecting except during initial installation, maintenance measures, or changes to the cable and line system. 

The installation connector system gesis® CLASSIC consists of connectors, device connections, distribution blocks, and pre-assembled variants of various cable cross-sections and different connection techniques. This makes it possible to establish a complete electrical infrastructure in a building. 

Mostly, it is installed in areas that are not easily accessible, such as suspended ceilings, underfloor ducts, and cable ducts, where different environmental conditions prevail than, for example, the application of commercially available household sockets. 

To ensure that power transmission via installation connectors functions safely in such environmental conditions over a long period, product standard IEC EN 61535 specifies that only installation connectors from the same manufacturer may be used because only this measure ensures that power transmission to the end circuits is guaranteed.

Do I need to cover open sockets?

IEC EN 61535 distinguishes between easily accessible areas, where electrical laypersons have access to an electrical installation, and not easily accessible areas, which are reserved for electrical specialists. gesis® CLASSIC connections are also approved for easily accessible areas. However, you must close open gesis® CLASSIC sockets with closure pieces (item 05.564.5353.0) there. In not easily accessible areas, you do not necessarily have to close open sockets.

Why do some GST18i3 items have two standards and two rated currents (IEC 61535: 20 A, EN 60320: 16 A)?

The rated current of the gesis® CLASSIC system is 20 A. The relevant product standard for this is IEC 61535. Pre-assembled cables with 1.5 mm² and snap-in components of type GST18i3 are also approved according to EN 60320 (household applications). However, this standard only covers products up to 16 A (household), which is why both rated currents must appear on the product.

Is connecting fixed installation cables (NYM) using connectors VDE compliant? (Initial connection with NYM)

This application is not excluded in any of the applicable VDE regulations. However, some requirements must be observed:

  • The connection points of cables not fixedly installed must be relieved of tension and thrust (strain relief and locking).
  • The supply line (NYM) must be protected from excessive bending stress during assembly by suitable fastening of the cable or plug.

WARNING

NO COMPATIBILITY BETWEEN CONNECTOR SYSTEMS FROM DIFFERENT MANUFACTURERS

Mixed connections between Wieland GST® connectors and connectors from other manufacturers can endanger the health and safety of people, animals and property.

Mixed connections between Wieland GST® connectors and connectors from other manufacturers can lead to the loss of the presumption of conformity according to Section 4 of the 1st ProdSV (Low Voltage Directive). Connectors from other manufacturers may not be made available or offered on the market in combination with Wieland GST® connectors or with the statement "Compatible with Wieland GST® connectors".

Explanation:

The Wieland gesis® CLASSIC installation connector system consists of GST® connectors, GST® device connectors, GST® distribution blocks and pre-assembled variants with different cable cross-sections and different connection techniques. All GST® products are certified in accordance with the harmonised standard EN IEC 61535 and are marketed by us for the establishment of a permanently pluggable connection in electrical installation systems. 

IEC EN 61535 is a product standard and only regulates the requirements for product design; as a product standard, EN IEC 61535 does not contain any specifications for the design of connectors; i.e. unlike design standards (e.g. for the manufacture of earth contact connectors), codings and mating face can be freely selected by the manufacturers and can also be further developed within an installation connector family. This design freedom means that mechanical pluggability alone does not establish compatibility between connectors from different manufacturers.     

Accordingly, the product standard IEC EN 61535 stipulates that only installation connectors from the same manufacturer should be used for installations, as this is the only way to ensure safe power transmission over a long period of time.

DOWNLOADS

gesis® Indoor - Catalog

0670.1 | 32 MB

FOCUS LIGHT - Brochure

0429.1 | 6 MB

HELLO BUILDING – Brochure

0431.1 | 10 MB

Tender Text gesis® CLASSIC

314 KB

EXPLORE TAILORED SOLUTIONS FOR YOUR CHALLENGES

Please do not hesitate to contact us using the contact details provided to discuss your specific requirements.

Contact Information

ELECTRICAL PLANNER

We know that you have a great responsibility as a planner and would like to support you in mastering this task more easily. That's why we offer you modern planning tools and product configurators, tried-and-tested applications for every type of building and requirement, as well as a wide range of training opportunities and professional services.

ELECTRICIAN

We understand the complex requirements of electrical installation and know that electrical installers face new challenges every day, whether it's due to constantly evolving technology, changing standards or individual requirements in different construction projects. 

CONTACT

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call: +49 951 9324 996

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