Activation
Activation mechanisms and electrical connections
SERVOMOTOR WITH RETURN SPRING
+ BSIA24-48 (SHUNT RELEASE) (AUTOMATIC
RESET) NF MARKING
SERVOMOTOR WITH RETURN SPRING
+ BSIA24-48 (UNDERVOLTAGE RELEASE)
(AUTOMATIC RESET) NF MARKING
- Damper is closed (activated) by switching off the
supply (24 V AC or 24…48 V DC) to terminals 3-4 of
the BSIA24-48-R “C” interface as shown in the
electrical wiring diagram or by switching off power by
means of thermoelectric fusible link “B” when the
temperature exceeds 72 ° C inside or outside the
damper.
- Damper is automatically reset by switching off
supply to terminals 1 and 2 for more than 5 seconds
and then supplying power (24...48 V AC/DC) to the
same terminals, as shown in the electrical wiring
diagram. Manually inserting the lever in hole “A” and
turning clockwise.
- Damper is closed (operated) by providing an
electrical supply (24 V AC or 24…48 V DC) to
terminals
3-4 of the BSIA “C” interface as shown in the diagram
or by switching off power by means of thermoelectric
fusible link “B” when the temperature exceeds 72 °C
inside or outside the damper.
- Damper is automatically reset by switching off supply
to terminals 1 and 2 for more than 5 seconds and then
supplying power (24...48 V AC/DC) to the same
terminals, as shown in the electrical wiring diagram.
Manually inserting the lever in hole “A” and turning
clockwise.
Servomotors and thermoelectric fusible links compatible for this solution:
BF24-T-ST (24 V AC/DC)
BF48-T-ST (48 V AC/DC)
BAE72-F-ST (thermoelectric fusible link)
Series SF
21
