Benefits of Werma – flexSQUARE
The compact 853 LED beacon is particularly versatile. With an IP67 protection rating, it is suitable for all indoor and outdoor applications, even in harsh environmental conditions.
- Powerful high-output, forward-directed light effect
- Clearly visible, also from the side
- Easy mounting and electrical installation thanks to the elastic, self-sealing, membranes or optional M20 cable gland for mounting on different sides
- Many combinations are possible (traffic lights, for example)
- Where space is restricted: Multi-coloured version available, with up to seven colors
153 multi-tone siren:
- Loud audible signal to complement 853 beacons or as a stand-alone product
- Eight signal tones to choose from and a signal escalation option using three different externally triggerable tones

Features
- Signal escalation possible with LED permanent light, LED double flash and EVS light in different colours
- Wide range of light effects and voltage options (12V, 24V, 48V and 115-230V)
- With the multi-coloured version, the three basic colours red, yellow and green can be activated with just two PLC outputs. With a third output, a further four colours are available
153 multi-tone siren:
- The sound output can be adjusted remotely
Applications
Signalling of faults
- In lift and hoist systems (48 V)
- In building technology
Installation options
- Wall mounting
- Base mounting
Specifications
Dimensions (LxHxW) : 85 x 85 x 72 mm
Housing : PP-GF, black
Lens : PC, transparent
Connection : Screw terminal 0.5-1.5 mm2
CAGE CLAMP 0.5 to 1.5 mm2 (Multicolors, RGY)
Fixing : Wall, base and ceilling mounting
Color : Red, yellow, green, white, blue, violet, turquoise (multi color)
Equipment : Elastic self-sealing membranes for cable entry without tools
Eight integrated M20 threads, no nuts required.
Optional use of a cable gland, thread length of a cable gland =< 9 mm (accessory)
Assembly : Incl. snap-on fixing bracket (optional use)
Life duration : Up to 50.000 hours
For More Information and Price : Benefits of Werma – flexSQUARE
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