Siemens 6ES7522-5HH00-0AB0 is a SIMATIC S7-1500 digital output module that delivers 16x 230 V AC/2 A relay outputs for use with S7-1500 and ET 200MP backplanes. The 16 channels are organized in eight groups of two, providing up to 4 A per group (2 A per channel), with a front-connector (screw terminals or push-in) ordered separately. It includes load-group diagnostics and a switching-cycle counter, and supports safety-related shutdown of load groups up to SIL1 per EN IEC 62061:2021 and Category 2/PLc per EN ISO 13849-1:2015.
