Siemens 3SB3604-6BA50 Indicator Light

Siemens 3SB3604-6BA50 Indicator Light is a 22 mm metal-round complete signaling unit for panel mounting, featuring a blue concentric-ring lens and BA9S lamp holder, with the lamp not included and screw-terminal connections for straightforward wiring. Rated for 5–400 V AC/DC and IP67-protected against dust and water ingress, this rugged indicator is designed for harsh industrial environments and serves as a durable blue-status signal in control cabinets, machines, and process equipment. It ships as a complete housing with lens and base; a compatible lamp must be installed to illuminate the blue signal, and the module is part of Siemens' 22 mm signaling family. With its compact footprint and metal construction, the 3SB3604-6BA50 provides reliable visibility from multiple angles thanks to the concentric rings and blue coloration, and uses screw-terminal wiring for secure field connections.