Overview
The 140DAI54300C is a Schneider Modicon Quantum VAC discrete input module offering 16 inputs across 2 channels, accepting 115 V AC at 5.5 W power draw. It carries CE marking and is certified to UL 508 and CSA C22.2 No 142, with additional cUL and FM Class 1 Division 2 approvals.
Isolation between channel groups and between group and bus is rated at 1780 Vrms for 1 minute, protecting the backplane from line transients. The absolute maximum input is 132 V continuous, 156 V for 10 s, and 200 V for 1 cycle — exceeding these limits risks damage. Response time is 4.9 ms, suitable for monitoring AC line signals in motor starter feedback or valve position sensing. The module includes conformal coating (Humiseal 1A33) for protection against moisture and contaminants.
Applications
As part of the Modicon Quantum automation platform, the 140DAI54300C is used in industrial control systems for monitoring 115 V AC discrete signals — such as limit switches, pushbuttons, relay contacts, and proximity sensors — in manufacturing, water treatment, and material handling installations.
Compliance & certifications
The module carries CE marking and is certified to UL 508 and CSA C22.2 No 142. Additional approvals include cUL and FM Class 1 Division 2 for hazardous locations. It also complies with California Proposition 65. Warranty is 18 months from date of manufacture.