General
Number of connections	2
Connection type	Screw connection
Rated cross-sectional area	2,5 mm²
Cross section	0,14 - 4 mm²
Mounting method	NS 35/7,5, NS 35/15
Colour	Green-yellow

The UT 2,5-PE from Phoenix Contact is a protective earth conductor series terminal block, specifically developed for the safe and reliable connection of protective earth conductors in industrial electrical installations. With a rated cross-section of 2.5 mm² and an allowable conductor cross-section range of 0.14 mm² to 4 mm², the device is suitable for a wide range of applications in the field of electrical safety. The terminal block is green-yellow, the international identification color for protective earth conductors, enabling clear visual identification in the enclosure. Installation is carried out on standard DIN rails of types NS 35/7,5 and NS 35/15, ensuring universal compatibility with existing enclosure constructions.

Applications
The UT 2,5-PE is used in industrial electrical engineering wherever a reliable protective earth conductor connection is required. This includes, for example, machine controls, distribution boxes, enclosures, and other electrical installations where grounding of devices and circuits must be ensured according to applicable safety standards. The terminal block is designed for indoor use and functions as a pass-through terminal block, connecting two conductor connections in a row without requiring an additional connection point.

Functions and Equipment in Detail
The terminal block features a screw connection, ensuring a mechanically stable and electrically conductive connection. The number of connections is two, enabling it to function as a pass-through terminal block. The green-yellow color coding corresponds to the international standard for identifying protective earth conductors and supports error prevention during installation. The terminal block is designed for use with conductors in the cross-section range of 0.14 mm² to 4 mm², with a rated cross-section of 2.5 mm². This value is sufficient for most industrial applications and ensures adequate current-carrying capacity for grounding requirements.

Technology Explained Simply
The protective earth conductor series terminal block UT 2,5-PE operates on the principle of a screw terminal, where the conductor is securely clamped by a screw to establish a safe electrical connection. The terminal block is designed as a pass-through terminal block, meaning it connects two conductor connections in a row without requiring an additional connection point. Installation is carried out on DIN rails, which are standard in the electrical industry. The green-yellow color coding is the identification color for protective earth conductors according to DIN VDE 0100-510 and supports clear identification in the enclosure.

Compatibility and Accessories
The UT 2,5-PE is compatible with various accessories that facilitate installation and identification. These include, for example, labeling pins such as X-PEN 0,35, warning signs such as WS UT 2,5, plug bridges in various pole configurations (e.g. FBS 50-5, FBS 2-5, FBS 3-5), insulating sleeves in various colors (e.g. MPS-IH BK, MPS-IH RD, MPS-IH WH), test adapters (e.g. PAI-4-FIX-5/6 OG, PS-5), terminal markers (e.g. UC-TM 5, UCT-TM 5, UCT-TM 5 CUS), screwdrivers (e.g. SF-SL 0,6X3,5-100 S-VDE, SZS 0,6x3,5) as well as serrated bands (e.g. ZB 5 :UNBEDRUCKT, ZB 5 CUS) and end holders such as CLIPFIX 35-5. These accessories support labeling, testing, and installation of the terminal block without requiring additional tools or materials.

Installation and Mounting
Installation of the UT 2,5-PE is carried out on DIN rails of types NS 35/7,5 and NS 35/15, which are standard in the electrical industry. The terminal block is secured using an appropriate screwdriver, utilizing the designated screw connections for connecting protective earth conductors. The green-yellow color coding facilitates identification during installation and ensures clear assignment to the protective earth conductor. The terminal block is designed for indoor use and requires no special installation conditions.

Operational Advantages
The UT 2,5-PE provides a reliable and safe connection for protective earth conductors, which is critical for electrical safety in industrial installations. The clear identification via green-yellow coloring reduces the risk of installation errors. The use of standard DIN rails ensures universal compatibility. The combination with accessories such as markers, warning signs, and test adapters enables efficient and documentable installation. The terminal block is designed for use in enclosures and distribution boxes where stable grounding is required.

Protective earth conductor series terminal block, screw connection, pass-through terminal block, NS 35/7,5, NS 35/15, green-yellow