General
Terminal type	3-wire pass-through terminal
Colour	Orange
Application	Ex e II suitable
Conductor cross section	0,5-10 mm²
Maximum conductor cross-section	16 mm²

The WAGO 2010-1302 is a 3-conductor pass-through terminal block in orange colour, specifically designed for use in explosion-protected installations according to category Ex e II. This terminal block enables the secure connection of three conductors within a single component, with the pass-through function ensuring continuous current flow across multiple terminals. The terminal block is intended for use in industrial installations, particularly in areas where increased explosion protection is required, for example in the chemical industry or during the processing of gases and vapours.

Applications

The terminal block is suitable for applications in the Ex e II category, meaning it can be used in environments where explosive atmospheres may occur, yet can be operated safely under specific conditions. The category Ex e II refers to devices approved for use in Zone 2 (occasional explosion hazard) or Zone 22 (occasional explosion hazard due to solids). The terminal block is therefore suitable for use in industrial installations with heightened safety requirements, where a secure electrical connection is needed under potentially hazardous conditions.

Functions and Equipment in Detail

The terminal block is designed as a pass-through terminal block, meaning it enables an electrical connection across multiple terminals without requiring additional connecting wires. The 3-conductor function allows the simultaneous connection of three individual conductors at one terminal point, thereby increasing mounting efficiency. This specification refers to the maximum permissible conductor size that can be safely processed in the terminal block. The orange colour serves as a visual identifier and is typical for terminals used in explosion-protected installations.

Technology Explained Simply

The terminal block operates on the principle of a pass-through terminal block, where current flow remains uninterrupted across multiple terminals. This is achieved through a special construction of the terminal block, where contacts are arranged to enable direct electrical connection between individual conductors. The Ex e II approval means the terminal block complies with the requirements of the European Explosion Protection Directive (ATEX) for use in explosive environments. The terminal block is therefore designed for use in environments where explosions caused by electrical sparks or overheating must be prevented.

Compatibility and Accessories

The terminal block is compatible with various accessories that facilitate mounting and identification. These include, for example, group label holders such as the 2009-193, which is green and designed for 15 mm spacing, as well as quick labelling systems such as the Mini-WSB in various colours (yellow, red, orange). Also compatible are wire end ferrules such as the 216-286 for 2.5 mm²/AWG 14 with plastic collar. Other accessories include end plates such as the 2010-1392 in orange, cover profiles such as the 709-156 transparent, and comb bridges such as the 2010-402 light grey 2-way 57A. Warning covers such as the 2010-115 with black lightning bolt symbol for 5 terminals in yellow can be used to mark hazardous areas. The combination with these accessories enables structured and safe installation in industrial facilities.

Mounting and Installation

Mounting is carried out in the usual manner within a terminal block field, inserting the terminal block into the designated grooves. The connection of conductors is made by inserting the conductors into the terminal opening and then tightening using a screwdriver or terminal crimping tool. The terminal block is designed to ensure a secure and durable connection, even under industrial loads. The use of accessories such as group label holders or labelling systems facilitates identification and maintenance of the installation.

Advantages in Operation

The terminal block provides a reliable electrical connection in explosive environments, thereby increasing the safety of the installation. The pass-through function reduces the number of required connections and thus reduces the risk of errors. Compatibility with various accessories enables flexible and structured mounting. The orange colour supports visual identification, which simplifies maintenance and inspection. The Ex e II approval guarantees that the terminal block meets the required safety standards and may be used in corresponding installations.