There are a large number of DIN standards and DIN VDE regulations in electrical house installation and electrical installation of apartments. They result in the need to comply with high safety standards and increased fire protection for electrical installations and distribution panel construction. These standards also apply to a wide variety of components and electrical equipment that often have to be integrated into complex subdistribution and distribution panels for low-voltage systems in very confined spaces.
Our new AITB installation terminal blocks have been specially developed to meet the special requirements and safety regulations for standard-compliant and modern electrical installations. Special features of the neutral disconnect terminal block provide real added value for planning, installation and operation on site. The existing portfolio of terminal blocks with screw connection is compatible with the AITB system and facilitates the measurement of insulation resistance required by the standard - protective earth (PE) against neutral (N) and protective earth against all phases (L1, L2, L3).
The planning phase is crucial for the success and cost-effectiveness of the entire panel building process. It requires intelligent interplay between digital article data and interconnected engineering tools. Efficient, easy wiring is key when it comes to the installation.
Our products stand out in this respect with their intuitive handling and clear design. All terminal functions can be distinguished from each other instantly.
Our Klippon® Connect products feature standardised test points which make automated testing and checking processes possible. In this way, maintenance and testing tasks can be carried out much more safely and faster.
High safety requirements and fire protection in building services are designed to protect people and equipment located in workplaces. There are numerous standards for this, such as the standard DIN VDE 0100-718 - VDE 0100-718 (Low-voltage electrical installations), the standard DIN VDE 0100-482 - VDE 0100-482 (for operation of electrical installations of fire, fire hazard), DIN VDE 0105-100 - VDE 0105-100 (operation of electrical installations) and also DIN VDE 0701-0702 - VDE 0701-0702 (repair and modification of electrical equipment), which include every component, no matter how small, in the overall system or refer to the safe operation of the installation within the work site.
These norms and standards also increase the safety requirements for all electrical systems and their components – for example, the terminal block system that acts as the interface between the electrical system and the building. The DIN VDE standards refer to fire protection or the avoidance of a potential fire hazard, the operation of electrical systems or the repair and modification of electrical equipment.
DIN VDE 0100-600 "Low-voltage electrical installations" contains requirements for the initial testing of electrical installations. With the test before commissioning, the electrician determines whether the normative requirements were met during the construction of the electrical system.
In the design and installation of distribution cabinets for low-voltage electrical installation systems in residential, office and industrial buildings, the normative requirements include the opening and closing of fused circuits for insulation resistance measurement. Depending on the number of circuit groups within an object, the disconnection can be done by a standard disconnecting lever or a disconnecting slide. The required measurement or test of the insulation resistance of all wires against the protective ground (PE/protective earth) must be carried out in accordance with DIN VDE 0100-718 and VDE 0100-482 without disconnecting the neutral conductor in order to detect insulation faults within the system.
In smaller current circuits with few current paths, the measurement of insulation resistance is performed with the help of standard disconnectors (levers) in the terminal block. In the case of larger current circuits with many individual circuits, a disconnecting slider is used for insulation resistance measurement, which ensures contact with the 10x3 N busbar. The insulation resistance measurement itself is performed conveniently and safely via the integrated test tap on the respective installation terminal block on the DIN rail.
DIN VDE 0100 Part 718 and DIN VDE 0100 Part 482, from the VDE 0100 (VDE 0100) series of standards, require the insulation resistance of all wires to be measured / tested against the protective ground (earth / PE) without disconnecting the neutral conductor. In buildings with many FI/LS circuits, it happens that each room or current path represents a single circuit, which must be considered separately during testing.
With the AITB installation terminals, each N potential can be routed separately via individual disconnectors and separated for insulation measurement. The resistance can be measured conveniently and safely with the specified test voltage via the integrated test tap at the respective connection point.
In the case of large circuit groups, safe contact to the copper bar is established via an N-disconnect slider on the N-disconnect terminal block. This closes a circuit that extends over the isolating slider to the copper bus bar. When the slider is levered to the end position, it opens the contact to the N busbar.
Thus the circuit is interrupted and the insulation resistance can be measured conveniently and safely with the specified test voltage. For this purpose, an integrated test tap is available at the respective connection point. The position indicator on the disconnect slide informs about the current status of the system, i.e. the contact to the busbar. It can also be read in the wired state.
The design of terminal blocks for the building industry requires a large number of individual accessories that must be linked together to meet the criteria of the standard. Compliance with clearances and creepage distances, finger safety or even the scannability of the functional areas are just some of the required and desired properties. Maximum flexibility must be provided for the individual design of the switchgear for planning, installation and later operation.
The Klippon® Connect accessories for building installation wiring meet these demands and requirements. A uniform busbar system enables the combination of different connection systems (PUSH IN connection and screw connection) and the uniform accessories. The range extends from the end plate, to the 10x3 copper busbar including accessories, to various feed options and connection terminals for the busbar system.
With the AITB 16 BB NLO, the neutral conductor busbar isintegrated into the system quickly, safely and without anyadditional tools. As with the installation terminals, the internal wiring in the control cabinet is in the direction of the neutral conductor busbar. This creates a clear visual distinctionbetween internal wiring at the switchgear manufacturer andexternal wiring on the construction site. The AEB ITB 16 BBBL, without connection function for a conductor, completesthe portfolio.
The BB-CV AITB 3X10 cover profile provides the necessary finger safety within the terminal strip. Overhanging parts of the busbar, which are provided as a reserve within the switchgear, can thus be secured against unintentional contact during maintenance work or measurements. The cover profile can be flexibly and individually cut to length.
The AEB ITB 2.5/4 BB BL is one of the all-rounders in theKlippon® Connect accessories for building installationwiring. The end bracket serves as a support block for thebusbar. Due to its identical contour to the three level installation terminal block AITB 2.5 BB... this can additionally be used for visual separation within the terminal strip, but also as an end plate. This saves additional components and working time. A holder for labeling (WAD 5) is available on the head side of the products.
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