Siemens 7SK7211-3AB1/DD

The Siemens 7SK7211-3AB1/DD is a solid-state overload protection relay designed to help safeguard electrical systems by monitoring current levels efficiently. This relay operates on a rated supply voltage of DC 110V to 220V and supports a frequency range of 50 to 60 Hz. It features an adjustable tripping time from 2 to 25 seconds, allowing for flexible response settings to suit various applications. Additionally, the device includes earth-fault detection with selectable sensitivity ranging from 0.1 to 0.4 or 0.2 to 0.8 times the rated current, depending on the configuration. The compact design includes a flag indicator for easy status monitoring and is compatible with flush mounting options. Distributed by BSP Automation, this relay provides reliable overload and earth-fault protection tailored for industrial environments.