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	4
Number of rows	1
Number of poles	4
Number of connections	4
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 of type MC 1,5/ 4-ST-3,81 from Phoenix Contact, specifically designed for secure and reliable connection of printed circuit boards with external cables in industrial applications. It belongs to the product family MC 1,5/..-ST and is part of the plug system COMBICON MC 1,5, used for modular and compact connections in electrical and automation technology. The connectors are finished in green and allow direct mounting on printed circuit boards with a pitch of 3.81 mm. The connection direction is perpendicular to the circuit board (0 °), enabling compact placement in enclosures or device housings.

Applications

The connector is suitable for use in industrial electrical installations, control and automation systems, as well as in machine and plant engineering. It is frequently used in enclosures, control devices, or devices with limited space, where a firm and pull-resistant connection between the circuit board and external cable is required. The rated voltage (III/2) is 160 V, qualifying it for applications in low-voltage technology. The nominal cross-section of 1.5 mm² allows connection with cables of this cross-section size, while the nominal current of 8 A defines the maximum current load.

Functions and Equipment in Detail

The connector features a socket contact type with a contact surface made of tin (Sn), providing good electrical conductivity and corrosion protection. The connection type is a screw connection with strain relief sleeve, ensuring a secure mechanical connection that remains stable even under vibration or mechanical stress. The screw drive type is a longitudinal slot (L), which can be operated with a standard screwdriver. The number of potentials is 4, meaning four separate electrical connections can be realized per connector. The number of rows is 1, and the pole count is also 4, describing the configuration as a single-row, four-pole connector.

Technology Explained Simply

The use of a screw connection with strain relief sleeve ensures that the cable is fixed not only electrically but also mechanically within the connector. The strain relief sleeve transfers the pulling force to the cable, preventing it from being pulled out or loosened. The tin contact surface ensures lasting conductivity and prevents oxidation. The plug system COMBICON MC 1,5 is a modular system that allows flexible expansion and combination with other components, for example with insert bridges or cable housings. The pitch of 3.81 mm is an industry standard and enables compatibility with other components of the same system.

Compatibility and Accessories

The connector is compatible with accessories from the COMBICON system. These include the insert bridge EBPL 2-3,81 (article number 1733495), which can be used for electrical connection of two adjacent contacts, and the cable housing KGG-MC 1,5/ 4 (article number 1834369), which provides additional mechanical and electrical protection for the cable connection. For installation, the screwdriver SZS 0,4x2,5 VDE (article number 1205037) is suitable, ensuring secure and precise tightening of the screws with longitudinal slot.

Mounting and Installation

Mounting is done by direct fixation onto the circuit board, with the connection direction perpendicular to the board. The screws are tightened using an appropriate screwdriver, while the strain relief sleeve securely holds the cable. There is no integrated locking or mounting feature on the device, so mounting is done directly on the circuit board and no additional securing elements are required.

Advantages in Operation

The connector provides a reliable and low-maintenance connection that remains stable even under industrial conditions with vibrations and temperature fluctuations. The use of tin as contact material ensures long service life and low resistance values. The modular design of the COMBICON system allows flexible expansion and adaptation to different requirements. The clear green color coding facilitates identification and installation in enclosures.