Siemens 6ES7522-1BP50-0AA0 SIMATIC S7-1500 DQ 64x24VDC/0.3A SNK BA Digital Output PLC I/O Module

The Siemens 6ES7522-1BP50-0AA0 is a SIMATIC S7-1500 digital output module, DQ 64x24VDC/0.3A SNK BA, packing 64 current-sinking transistor outputs onto one module in groups of 16 channels. Each output switches 0.3 A rated at 24 V DC, with up to 2 A per group at 60 degC, and it needs 35 mm cables and terminal blocks ordered separately.

Technical Specifications

Selection Notes

BA marks the Basic performance class, so this module trades per-channel diagnostics for channel density: 64 outputs on a single 35 mm module is roughly double the channel count of a standard 32-output card in the same family, which cuts rack space and IO addressing on machines with many discrete 24 V DC actuators. The lack of built-in short-circuit protection (external fusing at 4 A per group is required) is the tradeoff for that density; applications needing protected outputs per channel should use a module with integrated fusing instead. The 0.3 A per-channel rating fits small DC loads such as indicator lamps, small relays, and PLC-to-PLC signaling rather than motor contactor coils, which need a higher-current output module.

Applications

High-channel-count discrete signaling on machines with many small 24 V DC loads, such as indicator banks, pilot relays, and interlock signals, where rack space is limited.