Werma 645 Series Buzzer Unit, 230 V ac, AC, IP65

The WERMA KombiSIGN 71 modular stacking signal tower is an ideal solution to the increasing requirement for safety, machine productivity and reduced downtime. The modular design of these stacking towers enables quick and easy installation. Each KombiSIGN module is equipped with a bayonet fixing with integral contact system. Simply align the corresponding white marks and gently twist to lock them in place.

• Suitable for machine and manual Andon indication
• Modular system allows a completely free combination of optical and audible signal elements
• Mechanical and electrical connection of the elements in the space of seconds using a bayonet connection system
• Completely safe element changes (contact-voltage proof) without the need for tools
• Protection rating IP65 for use in extreme conditions
• Up to 5 elements can be mounted on a terminal base
• Flexible combination of optical and audible elements
• Optical isolation due to O-ring seal stopping illumination of adjacent element
• Operating voltage for the continuous incandescent element is dependant on bulb fitted
• LED EVS elements have an extremely bright, random sequence of light to immediately grab attention
• Ultra-bright elements are up to 20 times brighter than conventional LED beacons. Intelligent electronics ensure operation at maximum brightness
• Vocal element plays customer specific audio files in mp3 format (sounds, alarms, music or spoken word)
• Optional self adjusting siren automatically adjusts output between 80 & 100 dB depending on ambient sound levels
• AS-Interface element can be easily connected to the networking system which considerably reduces complex wiring
• Improved connection with cage clamp technology
• Operating temperature range is -20 to +50 °C
• Polyamide body with polycarbonate lenses, 70 mm diameter

• Seven colours in one beacon
• Different colours can be triggered via the pins in the terminal element
• Positive and negative control logic
• The three basic colours (red/yellow/green) can be triggered using only two PLC outputs
• High light intensity

Lamps are not supplied and must be purchased separately. Not compatible with KombiSIGN 70.

UL listed, CSA, VDE

This buzzer unit from WERMA provides an effective signalling solution for industrial machinery. The component integrates a multi-colour light-emitting diode (LED) element with a smart buzzer for complete audio and visual alarms. Its housing is made of a polyamide (PA) material that's durable and wear-resistant, so it can withstand use in heavy-duty environments. It also has a polycarbonate (PC) lens that's ultraviolet (UV) stable, meaning it won't be warped or discoloured by sunlight and is suitable for outdoor use.

• Wide operating temperature range of -20°C to +50°C for use in harsh environments
• IP65 (ingress protection) rating to withstand dust and low-pressure water jets
• Bayonet connection system for quick mechanical and electrical connection of the elements
• Maximum sound intensity of 85dB (decibels) for clearly audible signalling, even from a distance

• Process and packaging equipment
• Construction machinery

Yes, you can connect this unit to other buzzer devices in the KombiSIGN 71 range. However, it's not compatible with components in the KombiSIGN 70 range.