Siemens 5SL7125-8RC, 1-pole miniature circuit breaker, 240/415 V, 15 kA interrupting capacity, D-curve, 25 A rated current.
The Siemens 5SL7125-8RC is a 1-pole miniature circuit breaker (MCB) with a D tripping characteristic, rated 25 A at 240/415 V and a 15 kA interrupting capacity.
Snap-on DIN rail mounting, standard 1-pole module width. The 240/415 V rating covers both single-phase (line-to-neutral) and three-phase (line-to-line) applications in a 400 V distribution board. The D-curve makes it a common choice for motor branch circuits and small transformer primaries in industrial control panels.
15 kA at 240/415 V. That is the maximum fault current the breaker can safely interrupt under standard test conditions.
The D tripping characteristic allows magnetic trips at 10 to 20 times the rated current (250–500 A for this 25 A unit), so it avoids nuisance trips on high-inrush loads like motors and transformers.
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
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