General
Nominal cross section	1,5 mm²
Colour	Green
Nominal current	8 A
Rated voltage (III/2)	160 V
Contact surface	Sn
Contact type	Bus
Number of potentials	3
Number of rows	1
Number of poles	3
Number of connections	3
Product family	MC 1,5/..-ST
Modular spacing	3,81 mm
Connection type	Screw connection with strain relief
Screw drive type	L slot
Connection direction wire/PCB	0 °
Connector system	COMBICON MC 1,5
Locking	None
Mounting type	None
Packaging type	packed in carton

The product is a printed circuit board connector from Phoenix Contact, type MC 1,5/ 3-ST-3,81, from the MC 1,5/..-ST product family. It serves as a connector for mounting on printed circuit boards and enables a secure electrical connection for cables with a nominal cross-section of 1.5 mm². The connector is green in colour and is used in industrial applications where reliable and compact connection technology is required. It is part of the COMBICON MC 1,5 plug system, developed for modular and standardised connections in electrical and automation engineering.

Applications
This printed circuit board connector is designed for use in industrial plants, control systems, machine construction, and electrical installations. It is particularly suitable for applications requiring fixed mounting on a printed circuit board and fast, repeatable connections to cables. The rated voltage of 160 V (III/2) and the nominal current of 8 A define its use in low to medium power applications.

Functions and Equipment in Detail
The connector features three potentials, corresponding to a pole count of 3. The number of connections is also three, with each connection realised via a screw connection with a strain relief sleeve. The strain relief sleeve ensures the cable is securely held in the connection and prevents it from being pulled out. The screw drive type is a slotted drive (L), which can be operated with a suitable screwdriver. The contact type is a socket, with a contact surface made of tin (Sn), ensuring good electrical conductivity and corrosion resistance. The connection direction to the printed circuit board is 0 °, meaning the connections are oriented perpendicularly to the board.

Technology Explained Simply
The connector is designed for mounting on a printed circuit board, with contacts arranged perpendicularly to the board. The connection is made via screw terminals, where the cable is inserted into the strain relief sleeve and then tightened with a screw. The strain relief sleeve prevents the cable from being pulled out under tension. The tin-plated contact surface ensures a stable electrical connection and minimises the risk of oxidation. The pitch of 3.81 mm allows compatible mounting with other components of the COMBICON MC 1,5 system, enabling modular expansion of circuits.

Compatibility and Accessories
The connector is part of the COMBICON MC 1,5 plug system and can be combined with matching plug sleeves, jumper bridges, and cable housings. As an accessory, the jumper bridge EBPL 2-3,81 (item number 1733495) is available, allowing two adjacent connections to be electrically linked. The cable housing KGG-MC 1,5/ 3 (item number 1834356) provides mechanical protection and cable guidance for connected cables. For installation, the screwdriver SZS 0,4x2,5 VDE (item number 1205037) is suitable, as it correctly engages the slotted screw drive.

Mounting and Installation
Mounting is done by inserting the connector into the designated holes in the printed circuit board. The connections are oriented perpendicularly to the board, allowing cables to be connected vertically. The screw terminals are tightened using a slotted screwdriver. The strain relief sleeve ensures the cable cannot be pulled out under tension. No additional fastening elements are required, as no locking or fastening mechanism is provided.

Operational Advantages
The connector offers a compact and reliable connection technology for printed circuit boards. The use of strain relief sleeves increases the mechanical stability of the connection. The modular design of the COMBICON MC 1,5 system allows for flexible circuit expansion. The tin-plated contact surface ensures long service life and stable electrical conductivity. The clear structure with three connections and a pitch of 3.81 mm simplifies planning and installation in complex circuits.