Siemens 6AV3673-1CA00 – Direct Control Key Module for Operator Panels

The Siemens 6AV3673-1CA00 provides physical pushbuttons for direct machine control functions. This key module measures 130 mm in width and 110 mm in height. It has a depth of 45 mm, so it fits standard panel cutouts easily. The unit weighs 0.38 kg, making installation quick and secure.

Key Configuration and Tactile Response

This control key module features eight programmable pushbuttons on its front panel. The Siemens 6AV3673-1CA00 uses mechanical switches with a tactile feedback feel. Each key has a rated actuation force of 2.5 newtons for comfortable operation. The keys withstand up to 1 million actuations during their service life. Individual LED indicators sit beside each key for visual status feedback.

Internal Architecture and Component Layout

The module contains two separate circuit boards inside its plastic housing. One board handles key scanning, while the other manages communication with the host panel. The Siemens 6AV3673-1CA00 includes a dedicated microcontroller for debouncing and encoding. A 14-pin ribbon cable connects this module to the main operator panel. The module stores 22 µF of capacitance for power supply filtering only.

Electrical Specifications and Interface Details

You must supply 24V DC power through the ribbon cable from the host panel. The Siemens 6AV3673-1CA00 draws 50 mA at 24V DC during normal operation. Therefore, total power consumption reaches 1.2 watts for the entire module. Each key output provides a clean contact closure signal to the controller. The module uses a matrix scanning method to reduce the number of required wires.

Environmental Tolerance and Mounting Details

You can mount this key module flush into a control panel door easily. The device operates reliably from 0°C to 50°C ambient temperature. It tolerates humidity levels up to 90 percent without any condensation issues. The Siemens 6AV3673-1CA00 has an IP65 rating on the front panel for washdown resistance. The rear body carries an IP20 rating for internal cabinet protection.

Below is a complete summary of its technical specifications.

The Siemens 6AV3673-1CA00 replaces failed key modules in OP-series operator panels. You do not need any special tools or additional configuration software. This module also supports custom key labeling for specific machine functions. Consequently, it provides reliable operator input for industrial machinery and production lines.