With its four potential-free output channels, the 750-669/000-003 safety relay module from the 'I/O system 750' from Wago switches capacitive and inductive loads up to 48 V(AC)/ 60 V(DC). The equipment also includes four safe feedback inputs, which monitor the switching states of the contactor contacts, for example. The relay module supports a Profisafe-compliant Ipar server, which automatically and safely transfers the correct parameters to the Bus Terminal when a device is replaced. Other features include an output current of 6 A per channel, pulse current resistance of up to 30 A and a total current of 24 A. Thanks to its width of 48 mm, the module can be mounted on the mounting rail to save space. Configuration is carried out via the controller based on the device description file. All inputs can be parameterized and documented with 'Wago-I/O-Check'. In addition to error evaluations such as short circuit, external voltage and discrepancy, the relay module offers various filter times and operating modes. These parameters can be accessed via the 'Tool Calling Interface' (TCI).