The 140DAI55300C is a 32-point 115 VAC discrete input module for the Modicon Quantum automation platform. It reads 79–132 V AC as a logic 1 and 0–20 V AC as a logic 0, with a per-point response time of 4.9–0.75 ms off-to-on and 7.3–12.3 ms on-to-off. Bus current draw is 250 mA, isolation between channel groups is 1780 Vrms. It carries CE, CSA C22.2 No 142, and UL 508 marks.
Schneider Modicon 140DAI55300C 115VAC Discrete Input Module,
MPN140DAI55300C
Obsolete
Schneider Electric Modicon Quantum 140DAI55300C, VAC discrete input module, 32 inputs, 115 V AC, 250 mA bus current, CE, CSA C22.2 No 142, UL 508.
$1,036.32 – $1,884.00Ref. price · indicative, final on quote
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MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
How we verify every order →Specifications
| Parameter | Value |
|---|---|
| Range of product | Modicon Quantum automation platform |
| Product or component type | VAC discrete input modules |
| Discrete input voltage | 115 V AC |
| Voltage state 0 guaranteed | 0...20 V AC 57...63 Hz 0...20 V AC 47...53 Hz |
| Voltage state 1 guaranteed | 79...132 V AC 57...63 Hz 85...132 V AC 47...53 Hz |
| Input current | 11.1 mA 57...63 Hz 13.2 mA 47...53 Hz |
| Bus current requirement | 250 mA |
| Maximum leakage current | 2.1 mA |
| Maximum power dissipation in | 10.9 W |
| Network frequency limits | 47...63 Hz |
| Response time | 4.9...0.75 ms x line cycle Off-On 7.3...12.3 ms On-Off |
| Relative humidity | 95 % without condensation |
All specifications
| Parameter | Value |
|---|---|
| Operating altitude | <= 16404.2 ft (5000 m) |
| Standards | CSA C22.2 No 142 UL 508 |
| Marking | CE |
| Category | US1PC2118155 |
| Module format | Standard |
| Software name | Unity Pro ProWORX 32 Concept |
| Input impedance | 12000 Ohm capacitive 57...63 Hz 14400 Ohm capacitive 47...53 Hz |
| Local signalling | 1 LED (green) for bus communication is present (Active) 1 LED (red) for external fault detected (F) 32 LEDs (green) for input status |
| Group of channels | 4 |
| Protective treatment | Conformal coating Humiseal 1A33 |
| Discrete input number | 32 |
| Absolute maximum input | 132 V continuous 156 V 10 s 200 V 1 cycle |
| Addressing requirement | 2 input words |
| Isolation between group | 1780 Vrms for 1 minute |
| Isolation between group and bus | 1780 Vrms for 1 minute |
| Ambient air temperature for storage | -40...185 °F (-40...85 °C) |
| Resistance to electromagnetic fields | 9.1 V/m (10 V/m) 80...2000 MHz IEC 801-3 |
| Ambient air temperature for operation | 32...140 °F (0...60 °C) |
| Resistance to electrostatic discharge | 4 kV contact IEC 801-2 8 kV on air IEC 801-2 |
Product details
Frequently asked questions
What are the key specifications?
32 discrete inputs, 115 V AC, 250 mA bus current, 1780 Vrms isolation between groups, response times 4.9–0.75 ms off-on and 7.3–12.3 ms on-off.
What certifications does it have?
CE marked, plus CSA C22.2 No 142 and UL 508 listings.
MPN
140DAI55300C