Siemens 3RK1903-3AC10 Terminal Module TM-FDS65 65mm NSMP

Siemens 3RK1903-3AC10 TM-FDS65 is a 65 mm wide terminal module designed for the F-DS1e-x family of fail‑safe direct starters, supplied without infeed terminals and coded for trip groups. It specifies a mounting height of 290 mm, installation width of 65 mm, and installation depth of 100 mm, with IP20 protection. The insulation voltage rating is 690 V, the operating voltage (AC rated value) is 500 V, and it withstands surge voltages up to 6,000 V. The module is rated for a continuous operating current of 50 A and supports standard electrical frequencies of 50 Hz and 60 Hz. This TM-FDS65 component is referenced in Siemens technical materials as part of the ET 200S motor starter terminal module family and is designed to work with an energy bus bushing, enabling termination and organization of wiring for fail‑safe direct starter configurations. In practice, it serves as a dedicated terminal interface within Siemens automation architectures, supporting precise trip‑group coding and reliable, high‑current connections for safety‑critical motor control circuits.