Mitsubishi A68RD3N MELSEC-A 8 Channel Pt100 RTD Temperature Input Module

Core Performance & Industrial Application

The Mitsubishi A68RD3N is an 8-channel 3-wire Pt100 RTD temperature input module for MELSEC-A series PLC. It collects temperature signals from platinum resistance sensors, converts resistance values into digital temperature data for the PLC CPU. It supports wide temperature measurement range, photocoupler isolation, and channel status indication for stable thermal monitoring in process control.

Technical Specifications

▶ Product type: Pt100 RTD temperature input module, order no. A68RD3N

▶ Series: MELSEC-A PLC

▶ Channels: 8 points, 3-wire Pt100

▶ Temperature range: -180 ℃ ~ 600 ℃

▶ Isolation: Photocoupler isolation between field and PLC side

▶ Mounting: Plug-in for MELSEC-A backplane rack

▶ Operating temperature: 0 °C to +60 °C

▶ Protection rating: IP20 (cabinet installation)

▶ Net weight: approx. 0.52 kg

▶ Country of origin: Japan

▶ Compliance: CE, RoHS

▶ Commodity code: 85389000

Industry Applications

Applied in metallurgy, chemical, furnace, packaging and machinery automation systems for temperature monitoring via Pt100 thermal resistors.

Note: This product is discontinued, confirm hardware compatibility and alternative solution before ordering