Product Details

The Schneider 140DAI34000C conformal coated discrete input module is a digital signal acquisition module for Modicon Quantum PLC automation system, equipped with 16 channels of 24V AC digital input, used to collect on-site switch status signals and transmit them to the Quantum CPU for logic processing. The PCB circuit board is coated with Humiseal 1A33 conformal coating, which can effectively protect internal electronic components against moisture, dust and corrosive gas, ensuring stable continuous operation in chemical plants, offshore platforms and other severe industrial sites. Each channel supports 24V AC input, with per-point input current 10.7~12mA and maximum leakage current 1.9mA. This module occupies 1 input word in PLC address space, and consumes 180mA bus current with maximum power dissipation of 5.5W. Built-in channel fault detection circuit can identify abnormal input status and send diagnostic information to the Quantum CPU. Multiple LED indicators display channel on-off status and module fault alarm, helping maintenance staff quickly check field signal state. It can be directly inserted into the Quantum backplane rack and supports hot swap for convenient module replacement during system maintenance. This original Schneider product was discontinued on Feb 23,2026 and end-of-service on Dec 31,2030, widely stocked as spare replacement parts for maintenance and upgrade of legacy industrial automation systems under harsh environments. It is widely deployed in power, petrochemical, water treatment and manufacturing plants as 24V AC digital input acquisition module for Modicon Quantum automation racks.

Brand: Schneider Electric

Model: 140DAI34000C

Series: Modicon Quantum

Type: Conformal Coated Discrete Input Module

Input Channels: 16 channels

Input Voltage: 24 V AC

Per-point Input Current: 10.7~12 mA

Max Leakage Current: 1.9 mA

Bus Current: 180 mA

Max Power Dissipation: 5.5 W

Feature: Humiseal 1A33 conformal coating,16-channel 24V AC digital input, built-in channel diagnosis, LED status indicators, hot plug support

Mounting: Install on Modicon Quantum rack backplane

Operating Temperature: 0℃ ~ 60℃

Weight: 0.3kg

Status: Discontinued original spare part,end-of-service 2030

Certification: CE,FM Class 1 Division 2,cUL,ATEX

Application: 24V AC discrete digital signal acquisition module for Modicon Quantum PLC racks in harsh industrial sites