3-pole open track busbar connector ST22\01-3-SZ

3-pole open rail connector

This rail connector, designated ST22\01-3-SZ, is an element designed for mounting on a rail, providing reliable switching in control systems. The construction with three open poles allows for flexible use in various industrial and automation applications. The red color of the housing facilitates identification and indicates a normally closed (NC) state.

Construction and application

This connector is part of the ST22 series, designed by Spamel. Its construction allows for mounting on a standard rail, which significantly speeds up installation and configuration. The order symbol ST22\01-3-SZ indicates a model with three connectors (1, 2 and 3), which allows for controlling three independent circuits. This is particularly useful in applications requiring sequential starting or stopping of devices.

Parameters and structural features

The weight of the connector is only 11g, which facilitates its installation and minimizes the load on the rail. The maximum switching path, including the end path, is 6 mm. A force of at least 11 N is required to effectively open the contact. The connection terminals require a tightening torque of 0.5 Nm - important to ensure a stable electrical connection and avoid damage.

The construction ensures reliable operation in various environmental conditions. The dimensions of the connector (44 x 37.5 x 24 x 10 mm) allow it to be used even in spaces with limited dimensions. Connection diagrams (11/12, 21/22, 31/32) facilitate correct connection to the electrical installation.