Description

Product Overview The 1TNA920611R0002 belongs to ABB M102‑M intelligent motor management series. It integrates motor protection, measurement, logic control and Modbus RTU communication, widely deployed within MNS iS intelligent MCC drawers. It monitors three‑phase asynchronous motors and delivers comprehensive trip and alarm functions, and can exchange operational data with upper DCS, SCADA or MLink gateway.

Technical Specifications

• Brand: ABB
• Model: 1TNA920611R0002 (M102‑M)
• Auxiliary supply: 24 VDC
• Current range via CT: 0.24 A – 63 A
• Digital inputs: 24 VDC
• Communication: Modbus RTU
• Supported starter types: DOL, reversing DOL, star‑delta, soft starter
• Protection functions: Overload, phase loss, phase unbalance, earth fault, locked rotor, undercurrent
• Mounting: DIN rail or panel mount inside MCC drawer
• Operating temperature: -25 °C ~ +60 °C
• Protection degree: IP20
• Certification: CE, UL, IEC 60947‑4‑1
• Origin: China / India
• Typical use: Water treatment, power plant auxiliaries, chemical LV MCC, pump and fan control
• Lifecycle: Active production, new original stock available

Differentiation Notes M102‑M differs from the MControl units (1TGE120011R series). It is a full motor protection relay with built‑in current transformers and Modbus RTU, while MControl focuses more on local drawer I/O and bus interface for MNS iS. Other M102 variants have different auxiliary voltages or communication options.