Since 1977 Wittur supplies the lift industry with versatile and high-quality doors.
Since 1977 Wittur supplies the lift industry with versatile and high-quality doors.
Since 1977 Wittur supplies the lift industry with versatile and high-quality doors.
Since 1977 Wittur supplies the lift industry with versatile and high-quality doors.
Since 1977 Wittur supplies the lift industry with versatile and high-quality doors.
Since 1977 Wittur supplies the lift industry with versatile and high-quality doors.
Since 1977 Wittur supplies the lift industry with versatile and high-quality doors.
Since 1977 Wittur supplies the lift industry with versatile and high-quality doors.
Since 1977 Wittur supplies the lift industry with versatile and high-quality doors.
Since 1977 Wittur supplies the lift industry with versatile and high-quality doors.
Since 1977 Wittur supplies the lift industry with versatile and high-quality doors.
Since 1977 Wittur supplies the lift industry with versatile and high-quality doors.
Since 1977 Wittur supplies the lift industry with versatile and high-quality doors.Guide rail Brake for ascending car overspeed protection
EBRA20
- EBRA20 is acting in upward direction on car guide rails
- Ascending car overspeed protection
- Braking force is generated by two spring-loaded brake shoes, which are kept open via electromagnetic coil
- Placed on upper cross beam of car frame structure
- Released by signal of overspeed governor contact
- 3 standard types of adapter plates for fixing to car frame structure available on request: easy and fast installation
- Acting also as sliding shoe on car frame
- Independent of tolerances for position of suspension ropes
- Perfect solution for modernization: covers wide range of requirements
Technical features
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Max. nominal speed
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v = 2,0 m/s
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Q =
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240...2000 kg
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Max. nominal load
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|
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One brake max.
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1000 kg
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Two brakes max.
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2000 kg
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Applicable width of guide rail head (oiled)
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k = 7...19 mm
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n = 29 mm (k=7-9)
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30 mm (k=10-12)
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31 mm (k=14-16)
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32 mm (k=19)
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Min. width of guide rail running surface
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|
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Max. guide shoe forces during load
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4000 N
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Max. guide shoe forces during normal run
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2000 N
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Weight per EBRA20
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30 kg
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Power supply
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230 VAC +10%
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Battery for emergency power supply
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24 V; 2,1 Ah
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Power usage (continuous use)
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20 W per Coil
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