Overview
The WERMA 840 300 00 permanent light element is a yellow continuous-light indicator designed for the KombiSIGN 70 modular signal tower system. As a plug-in lens and lamp module, it provides clear visual indication of operational status in electrical control panels, machinery interfaces, and industrial automation equipment. The unit operates across a wide voltage range and is engineered for harsh factory environments.
Key Features
- Integrated BA15d socket for flexible lamp selection and replacement
- Wide voltage range: 12–230 V AC/DC for global industrial applications
- 70 mm front diameter for high visibility from distance
- IP54 protection rating provides resistance to dust and water splash
- KombiSIGN 70 modular compatibility—snaps directly into signal tower stack
- Yellow lens color standard for warning, caution, and status indication
Technical Specifications
- Voltage Range: 12–230 V AC/DC
- Socket Type: BA15d
- Lens Color: Yellow
- Diameter: 70 mm
- Depth: 66 mm
- IP Rating: IP54
- Material: Plastic lens assembly
- Temperature Range: Industrial standard (consult datasheet for exact range)
- Weight: Approximately 1 LB
- Mounting: Screw-in module for KombiSIGN 70 tower base
Typical Applications
- Manufacturing plant control room indicators
- Electrical panel status lights for PLCs and drive systems
- Machine condition monitoring (run, idle, ready states)
- Assembly line and production equipment signaling
- Industrial safety and equipment status visualization
- HVAC, pump, and utility equipment warning lights
Compatibility & Replacements
Compatible With
- WERMA KombiSIGN 70 modular signal tower base
- Any standard 24 VDC or 120/240 VAC industrial control system
- Electrical enclosures and DIN-rail mounted panels
- Allen-Bradley, Siemens, Omron, and other PLC controller outputs
Replaces / Drop-In Replacement For
- WERMA 840 300 00 (original manufacturer part number)
- Equivalent WERMA yellow permanent light modules in the 840 series
Works With
- Standard BA15d incandescent and LED lamp bulbs
- WERMA KombiSIGN 70 lens and stack assembly kits
- Standard 24 VDC or 120/240 VAC field wiring
- Standard relay and contactor outputs from any industrial controller








