Schneider Electric 140DAI75300 Discrete Input Module – 32 Channels 230V AC
Key Technical Specifications
- ◆ Brand & Series: Schneider Electric Modicon Quantum — 140DAI75300 belongs to the trusted Quantum family.
- ◆ Input Channels: 32 discrete inputs (230V AC) organised in 4 isolated groups, requiring only 2 input words for addressing.
- ◆ Voltage & Current: Guaranteed ON state 165‑264V AC (57‑63Hz) or 175‑264V AC (47‑53Hz); OFF state 0‑40V AC. Input current 11.5mA (57‑63Hz) / 9.7mA (47‑53Hz).
- ◆ Response Times: Fast Off‑On transition 4.9‑0.75ms (depending on line cycle); On‑Off 7.3‑12.3ms.
- ◆ Isolation & Protection: 1780Vrms isolation between groups and bus; withstands 264V continuous, 312V for 10s, 400V for 1 cycle.
- ◆ Environmental Resistance: Operates 0‑60°C, 95% humidity non‑condensing; certified immunity to electrostatic discharge (4kV contact, 8kV air) and electromagnetic fields (10V/m up to 2GHz).
- ◆ Diagnostics & Indicators: 32 green LEDs for input status, plus one green LED for bus active and one red LED for external fault.
- ◆ Power & Weight: Bus current draw 250mA, max dissipation 5W; net weight 0.3kg (0.7lb).
Isolation, Environmental Tolerance & Compliance
- ◆ Reinforced Isolation: Each group of channels withstands 1780Vrms for one minute, ensuring safe separation from the backplane.
- ◆ Wide Ambient Range: Certified for operation from 0°C to 60°C and storage from -40°C to 85°C, withstanding 95% relative humidity without condensation.
- ◆ EMC / Immunity: Meets IEC 801‑2/‑3 standards: 4kV contact / 8kV air discharge and 10V/m radiated immunity (80‑2000MHz).
- ◆ Approvals: UL 508, CSA C22.2 No 142, cUL, and FM Class 1 Division 2 suitable for hazardous locations.
- ◆ Altitude: Safe for installation up to 5000m (16404ft).
Frequently Asked Questions (FAQ)
- Q: Can I use the 140DAI75300 with legacy Quantum controllers?
A: Yes, the module works with all Modicon Quantum platforms and is compatible with ProWORX 32, Concept, and Unity Pro software. - Q: What is the maximum leakage current the module can tolerate?
A: The 140DAI75300 specifies a maximum leakage current of 2.6 mA, ensuring reliable OFF-state detection even with small leakage. - Q: Does the module provide channel‑to‑channel isolation?
A: It provides group isolation (4 groups of 8 channels) at 1780Vrms, but not individual channel isolation within the same group. - Q: What are the guaranteed ON and OFF voltage thresholds?
A: For 57‑63Hz, ON is guaranteed above 165V AC; OFF below 40V AC. For 47‑53Hz, ON requires 175V AC or higher. - Q: Is the 140DAI75300 compliant with international standards?
A: Yes, it meets UL 508, CSA 142, cUL, and FM Class 1 Div 2, plus CE marking. - Q: How many input words does this module occupy in the logic?
A: It uses 2 input words (16 bits per word) to represent the 32 discrete points.
- Q: Can I use the 140DAI75300 with legacy Quantum controllers?












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