Gear box with irreversible worm and worm wheel with hollow shaft of 25,4 mm. The wormwheel of special bronze and worm are equipped with ball bearings and runs in oil. The unit can be mounted in any position : the horizontal position is recommended. The limit switch shaft with its own drive worm is integrated in the gear box. The AC motor is directly flanged by means of a flexible coupling. Standard voltage 3-phase 230/400 V. with thermal protection in the coil (special voltage as option).
The limit switch:
On the reduction is a box mounted with limit switch ES10, this can be connected with a separate controller which can be chosen out of the LST/WST range. The limit switch consist out of a potential free switch, a control current limit switch for the end positions and a safety switch for each side of rotation.
The Emergency chain operation:
As option an emergency chain drive type SK can be mounted on the electromotor. It can be used for a horizontal and vertical placement. The emergency chain drive can be activated with the activation-chain. On the inside is a safety switch which prevents the activation of the motor during emergency. During emergency mode the setting of the end switches stay preserved.
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