Open/Close Damper Actuator, 20Nm, 19.2 → 264 V ac, 21.6 → 137.5 V dc

  • RS-stocknr. 834-8293
  • Fabrikantnummer SFA-S2
  • Fabrikant Belimo
Datasheets
Wetgeving en compliance
N.v.t.
Land van herkomst: CH
Productomschrijving

SF Series Spring Return with Emergency Function

New SF Series spring return actuators with emergency function for adjusting air dampers in ventilation and air conditioning systems in buildings. These replace the current AF series.,The motor moves the damper to its normal operating position against spring tension with a powerful turning and holding torque of 20 Nm. The spring will then return the damper to its safe position should the power supply be interrupted.

Brushless motors ensure a service life of 60000 operations
Can be installed with pre-tensioned spring
Manual winding and integral position fixing options allow installation and functional monitoring without electrical connection
Adjustable U-clamp accepts round or square shafts; round sizes 10 to 25.4 mm and square shafts 10 to 18 mm across flats, and 14 to 25.4 mm diagonal
Direction selector
IP54 rated
150 second motor run time
1 metre pre-wired cable
Stock nos. 712-2668 & 712-2652 feature an integrated 2xSPDT 6 (3)A 250Vac auxiliary switch

Belimo Damper Actuator

The Belimo Sf series damper actuator has an open/close control type. It is a spring return actuator with an emergency function for adjusting air dampers in ventilation and air conditioning systems in buildings. It has an adjustable U-clamp, which accepts round or square shafts. This actuator can be installed with a pre-tensioned spring. This product is controlled with a standard signal of DC 0V to 10V and moves the damper to the operating position. This actuator is overload proof, requires no limit switches. It requires AC supply voltage between 19.2VAC and 264VAC and DC supply voltage between 21.6VDC and 137.5VDC.
It has 2 x SPDT integrated auxiliary switches

Features and Benefits


The direction of rotation reversible
• Spindle driver universal spindle clamp
• Operating voltage range is between 2VDC and 10VDC
• Running springtime is <20s
• PVC connection cable length is 1m
• Motor and return torque is 20Nm
• Maximum damper area is 4m²
• Damper spindle compatibility is between 10mm and 25.4mm
• Power consumption is 7W
• Noise level ≤45 (Motor) dBA, ≤62 (Spring Return) dBA
• Rated impulse voltage is 0.8 kV
• Maintenance-free
• Service life min. 60,000 emergency positions
• Ambient temperature is between -30°C and 50°C

Certifications


IEC/EN 60730-1
• UL 60730-1A
• UL 60730-2-14
• CAN/CSA E60730-1:02
• IP54

Specificaties
Kenmerk Waarde
Return Type Spring Return
Maximum Damper Area 4m²
Damper Spindle Compatibility 10 → 25.4mm
Switch Included Yes
Power Consumption 7W
Control Type Open/Close
Supply Voltage 19.2 → 264 V ac, 21.6 → 137.5 V dc
Motor Torque 20Nm
Return Torque 20Nm
Noise Level ≤45 (Motor) dBA, ≤62 (Spring Return) dBA
Maximum Damper Spindle Size 25.4mm
Minimum Damper Spindle Size 10mm
24 op voorraad - levertijd is 1 werkdag(en) (EU-voorraad)
37 op voorraad - levertijd is 2 werkdag(en) (UK-voorraad)
Prijs Each
306,72
(excl. BTW)
371,13
(incl. BTW)
Aantal stuks
Per stuk
1 +
€ 306,72
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