The range now includes the SI 55.20 FI and SI 75.20 FI.
ELEKTROMATEN SI "Safedrive®" with frequency inverter (➊) are drive units for industrial roller shutter doors which require an anti-fallback device. In combination with GfA door controls TS 970, TS 971 or TS 981, the built-on frequency inverter offers the advantage of an individually adjustable output speed with soft start & soft stop.
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