Belimo BE24-12-ST - actuator for fire and smoke dampers

Belimo BE24-12-ST

Actuator for fire and smoke dampers. Close/Open control is provided via the BKNE230-24 communication and power supply unit. The direction of movement can be selected by mounting it on the left or right.

Key features and specifications

• Motor torque: 40 Nm; motor running time: <60 s / 90°.
• Rated voltage: AC/DC 24 V; frequency: 50/60 Hz.
• Power consumption during movement: 12 W; in the rest position: 0.5 W; for cable sizing: 18 VA.
• Auxiliary switches: 2x SPDT; switching points: 3° / 87°.
• Mechanical connection: 12x12 mm form-fit connection, through hollow shaft; rotation angle: max. 100°.
• Power and control connection: cable with 1 m connection plug, 3x 0.75 mm², FRNC (halogen-free). Auxiliary switch connection: cable with 1 m connection plug, 6x 0.75 mm², FRNC (halogen-free).
• Manual adjustment using a crank; mechanical position indicator.
• Degree of protection: IP54; ambient temperature: -30...50°C [-22...122°F].
• Included: crank, position indicator and protective bag.

The actuator is adapted and mounted on the damper by the damper manufacturer. The two integrated auxiliary switches can operate at mains voltage or safety extra-low voltage; combining these voltages on the contacts is not permitted.