Technical Specifications / Parameters Parameter Specification Manufacturer Order Code 2CTB803972R1200 Compatible Main Device ABB M102-M Motor Protection Relay Product Family Motor Protection & Condition Monitoring Accessories Device Type Digital Temperature Input Module (Expansion Module) Primary Function To acquire, condition, and transmit temperature data from embedded motor sensors to the main M102-M relay for processing, display, and tripping. Supported Sensor Types Pt100 Platinum Resistance Thermometers (3-wire connection typical) Number of Input Channels Typically 2 independent channels (for monitoring two separate temperature points, e.g., stator winding and bearing). Measurement Range Programmable via the M102-M relay, typically covering the full operational range of Pt100 sensors (e.g., -50°C to +250°C or wider). Accuracy High accuracy, conforming to standards such as IEC 60751 Class A or B for Pt100. Supply Voltage Powered directly from the M102-M base unit via the internal bus connection (e.g., 24 V DC). Communication Interface Proprietary digital bus to the M102-M relay. Connection Terminals Screw-clamp terminals for sensor wiring. Mounting DIN Rail Mounting (35mm). Modules snap together side-by-side with the M102-M relay to form a single cohesive unit. Module Width Typically 45mm (varies by specific accessory design; this module occupies additional space next to the main relay). Operating Temperature -25°C to +70°C (for the module itself, installed inside a control panel). Protection Degree IP20 (for installation in enclosures). Standards & Approvals IEC/EN 60255 (Measuring relays and protection equipment), IEC 61508 (Functional Safety - SIL capable as part of the system), CE, UL, cULus. Key Features • Individual channel configuration (sensor type, alarm, trip thresholds). • High noise immunity for reliable signal transmission. • Continuous self-monitoring and diagnostics.