4
Technical User Guide
DA 74BC Winch Motor
1
Product Description
DA 74BC is a 24V winch motor with a wall fitting and an arm which is used to adjust wall inlets, ceiling inlets
or emergency opening of windows and doors in houses.
DA 74BC can be mounted for either ON/OFF or stepless regulation and is controlled by a house computer. The
winch motor can be operated manually by disconnecting power, activating the push button for the manual
release and turning the wall fitting arm.
Before activating the manual release, you
must
retain the wall fitting arm.
DA 74BC can be set to ON/OFF, stepless, ON/OFF reverse or stepless reverse using the jumper on the PCB.
DA 74BC is controlled by 24V DC, ensuring safe emergency opening in case of a power failure or other
failure.
DA 74BC is easy to clean thanks to its compact design.
Figure 1: DA 74BC
Position
Article no.
Winch motor DA 74BC
1
527272
DA 74 cover incl. quarterturn screws
2
301074
Relay cable 0.75 mm 2x300 + 1x80
3
Retaining disc
4
Locking screw
5
432950
Gear unit complete (green)
6
290074
PCB
7
Connection terminals on PCB
8
432952
Motor
9
Push rod manual release
10
310323
Mounting clip for DIN rail, black
11
344174
Label for DA 74 terminal block 12p
12
310000
Terminal block 12P 4 mm2
13
310237
Phase busbar cobber 3p 10mm-spacing
14
432090
DA 74 wall fitting for wire pull
1
14
2
4 5
6
9
8
7
10 11
13 3
12
