The Siemens 8WN4420-0HA00 is an acoustic signal module (discontinuous buzzer) used in the 8WN series 70mm LED modular signal tower system. It produces an intermittent (pulsing) sound signal to alert operators about machine status, alarms, or fault conditions.
This module is commonly used in industrial automation, machine safety systems, and production lines where both visual + audible warning signals are required.
• Siemens SIRIUS 8WN signalling system accessory
• Model: 8WN4420-0HA00
• Type: Discontinuous buzzer (pulsed sound)
• Operating voltage: 24V AC/DC
• Sound output: approx. 90–105 dB (industrial alarm level)
• Designed for 70mm modular signal tower system
• Strong audible alarm for machine warning
• IP65 protection (dust & water resistant)
• Compact modular plug-in design
• High reliability industrial component
• Easy integration with LED stack light system
• Maintenance-free operation
• Suitable for harsh industrial environments
| Parameter | Specification |
|---|---|
| Product Series | Siemens 8WN |
| Model Number | 8WN4420-0HA00 |
| Product Type | Acoustic Signal Module (Buzzer) |
| Sound Type | Discontinuous / Pulsating |
| Rated Voltage | 24V AC/DC |
| Sound Level | ~90–105 dB |
| Diameter Compatibility | 70 mm |
| Protection Class | IP65 |
| Mounting Type | Modular plug-in |
| Material | Industrial-grade thermoplastic |
| Application | Audible alarm for status indication |
| Brand | Siemens |
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