Overview
The Werma 645 820 75 siren element is an acoustic signal module designed for integration into modular signal tower systems. This 8-tone siren operates at 24V AC/DC and features IP65 Type 12 protection in a 40mm diameter form factor measuring 68mm in height. Manufactured by Werma Signaltechnik in Germany, this siren element is engineered for industrial safety signaling, facility alarms, and visual alert systems requiring reliable acoustic output.
Key Features
- 8 selectable tones adjustable via DIP switch for flexible alarm configuration
- 100 dB output rating at 24V AC/DC
- IP65 protection rating for indoor and protected outdoor installations
- Operating temperature range to 50°C ambient
- Compact modular design for KombiSIGN tower integration
- Made in Germany; precision-engineered acoustic performance
Technical Specifications
- Operating Voltage: 24V AC/DC ±10%
- Tone Options: 8 selectable tones
- Output: 100 dB
- Protection Rating: IP65 Type 12
- Housing Diameter: 40 mm
- Height: 68 mm
- Ambient Temperature Range: −20°C to +50°C
- Supply Frequency: 50 Hz (60 Hz compatible)
- Manufacturer: Werma Signaltechnik GmbH (Germany)
Typical Applications
- Industrial facility alarm and emergency signaling
- Factory safety protocol activation and recall systems
- Assembly line and production line status notification
- Hazardous area acoustic alerts (Type 12 rated)
- Building maintenance and equipment failure warnings
- Traffic control and pedestrian safety zones
Compatibility & Replacements
Compatible With
- KombiSIGN 71 and KombiSIGN 72 modular signal towers
- Werma-standard 24V signal tower systems
- Industrial control systems and PLCs with 24V AC/DC outputs
- Standard 24V DC alarm and notification networks
Replaces / Drop-In Replacement For
- Werma 645 820 75 — direct replacement (same part number)
- Similar Werma acoustic signal elements in the 645 series
- Verify with your system integrator for legacy tower compatibility before ordering
Works With
- KombiSIGN modular signal tower platforms
- Standard 24V AC/DC industrial control wiring
- DIP-switch-based tone and volume configuration
- Werma connection elements (order separately as required)
