The Siemens 3RV1903-5CA00-0FJ0 is an indicator light with a glow lamp rated for 220-240V AC/DC. It ships with a three-color disc set — red, green, and clear — and mounts into 3RV19 housings in sizes S00 through S2. The unit is manufactured by Benedikt & Jaeger for Siemens.
Integration Note
Fits the cutout of 3RV19 circuit-breaker housings across the S00, S0, S1, and S2 frame sizes. The glow lamp provides visual status indication directly on the breaker face — no separate panel drilling needed. Color disc swaps without tools.