The Schneider Electric C103TM016C is a TM-D thermal-magnetic trip unit for the ComPacT NSX100…250 range, rated 16 A at 50 °C. The instantaneous pickup is fixed at 190 A, while the long-time pickup (Ir) is adjustable from 0.7 to 1 x In.
IP40 front-of-panel protection handles finger-safe touch but isn't rated for washdown.
Coordination and selectivity notes
The fixed instantaneous pickup at 190 A (roughly 12 x In) gives a high magnetic threshold, which helps with short-circuit selectivity downstream. The long-time delay is fixed at 120…400 s at 1.5 x In and 15 s at 6 x Ir — that's the thermal memory curve for motor or transformer starting. For a 16 A feeder protecting a 10 A motor load, the 0.7–1 x In Ir adjustment lets you dial in the continuous protection without swapping trip units.