Schneider Electric AS-B872-100 PLC Module

Schneider Electric AS-B872-100 is a four-channel analog output module for Modicon PLCs in the 800-series (984 family), delivering four independent 4-20 mA outputs to drive analog actuators and control loops from a digital PLC. It occupies a single rack slot and is part of Schneider Electric’s Modicon 800-series I/O family, offering robust isolation and fast update times. The module measures 60 mm high by 220 mm long by 270 mm wide and weighs about 1.2 kg. Each channel provides a 4-20 mA output with a maximum loop supply voltage up to 60 V DC and isolation rated at 1000 V continuous between channels, between a channel and the case, and between the channel and the module as a whole. Operation relies on logic supplies of +5 V at roughly 475 mA and +4.3 V at about 5 mA, with -5 V not required for normal operation. Update times are under 1 ms for all four channels, enabling precise, timely control in dynamic processes. The standard field-terminal connector is AS-8535-000, and the AS-B872-100 is designed for integration with Schneider’s Modicon PLC configurations where accurate current-output control across four channels is required.