Overview
The 140DAO84000 is a Schneider Modicon Quantum automation platform discrete output module, order code 140DAO84000, delivering 16 isolated AC outputs across 20-253 V AC in a 16 groups of 1 channel configuration. Rated for chassis mounting with a dv/dt of 400 V/ms and internal RC filter protection, it carries UL 508, CSA C22.2 No 142, and CE markings.
Each of the 16 output channels is isolated in its own group, meaning a fault on one channel does not propagate to the others — a key advantage when driving separate AC loads like contactors, solenoids, or pilot lights from a single module. The module switches AC loads from 20 to 253 V AC with a minimum switching current of 0.001 A, and the internal RC filter snubs transients at the dv/dt limit of 400 V/ms. The absolute maximum output withstands 300 Vrms for 10 s AC or 400 Vrms for 1 cycle AC, providing headroom for brief line surges. Addressing requires 1 output word in the Quantum backplane, and the module draws 1.85 W from the rack power supply.
Applications
This module is used in Modicon Quantum racks for medium-to-large industrial control systems — process plants, water treatment, material handling, and factory automation — where isolated AC output channels drive discrete loads such as motor starters, valves, alarms, and indicator banks.
Within the Modicon Quantum automation platform the 140DAO84000 is a standard-format discrete output module, specified when the design requires per-channel isolation for AC loads rather than grouped or solid-state outputs. It sits alongside the 140DAI55300 (32-point DC input) and 140DAM59000 (mixed I/O) in the Quantum I/O family, serving applications that need dedicated, isolated AC output points.