Application and design features
The reversible damper motors type SQM... are suitable for 2-wire control with controllers or switching units with changeover contact.
The control section comprises 2 motor travel limit switches, 5 auxiliary switches and - on request - 1 potentiometer (as feedback potentiometer for P-control, as position indicator with slave control systems, or for remote position indication).
The operation of the limit and auxiliary switches is made by manually adjustable cams. Setting scales provided between the cam discs simplify the adjustment. An additional scale at the end of the cam stack serves as position indicator. In addition, the damper motor type SQM21 is provided with a position indicator visible from the outside.
The reduction gearing is provided with self-lubricating sinter-bronze bearings and therefore requires no periodic maintenance. When mounting the motor and damper actuating rod, the gearing can be decoupled by means of a lever, so that the main drive spindle is easy to adjust in either direction of rotation.
Types available
| Type of motor |
Power consumption |
Running time at 50 Hz2) for 90° travel |
internal wiring acc. to diagram |
Direction of rotation with voltage on terminal 1, facing the spindle |
Nominal torque |
Starting torque |
Retaining torque |
220V-240V,
50...60Hz |
| VA |
s/90° |
s/130° |
No |
Nm |
Nm |
Nm |
Type |
| Standard execution. Spindle diameter: 10mm. |
| Syn. motor |
9 |
14 |
20 |
1 |
Anti-clockwise |
10 |
10 |
4 |
SQM10.15502 |
| Syn. motor |
9 |
29 |
42 |
1 |
Anti-clockwise |
10 |
15 |
7 |
SQM10.16502 |
| Syn. motor |
9 |
70 |
100 |
1 |
Anti-clockwise |
10 |
15 |
15 |
SQM10.17502 |
| Syn. motor |
9 |
14 |
20 |
2 |
Anti-clockwise |
10 |
10 |
4 |
SQM10.15562 |
| Syn. motor |
9 |
29 |
42 |
2 |
Anti-clockwise |
10 |
15 |
7 |
SQM10.16562 |
| Reinforced execution. Spindle diameter: 12mm. Reduction gear with hardened spindles and nitrated gears. Type SQM21 with position indicator visible from the outside. |
| Syn. motor |
9 |
45 |
66 |
1 |
Anti-clockwise |
20 |
20 |
12 |
SQM20.18502 |
| Syn. motor |
9 |
45 |
66 |
1 |
clockwise |
20 |
20 |
12 |
SQM21.18502 |
| Syn. motor |
9 |
29 |
42 |
1 |
clockwise |
20 |
20 |
12 |
SQM21.16502 |