ABB MLBL-01W Industrial Proximity Sensor Module

The ABB MLBL-01W is a 12 V DC LED lamp block designed for ABB's 22 mm pilot-device family, providing a built‑in indicator light for control panels, machines, and automation equipment. Identified by the catalog number 1SFA611621R1015, MLBL-01W is the white LED variant in ABB's MLBL lamp-block lineup, which also includes red, green, yellow, blue, and other color options. This module is intended to integrate with 22 mm pilot devices to signal status or alarms and is powered from a 12 V DC supply as indicated in ABB's pilot-device catalogs and product pages. The MLBL series is part of ABB's Pilot devices – 22 mm range, confirming its role as a modular indicator block rather than a standalone sensor.