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EF A-(S) • Actuators with spring reset 30Nm

Servomotors with spring return for air volume safety dampers of up to 6 m² depending on the type of air valve and the pressure on the valves. Simple direct mounting on the damper axe with a universal spindle clamp, supplied with an anti-rotation strap to prevent the actuator from rotating.

Type S2: With 2 integrated 0-100% auxiliary switches for adjustable signalization.

Brand

  • Belimo

Application

  • Safety dampers

Specifications

  • Torque 30 Nm
  • Nominal Voltage EF 230A-(S2) 230 V AC
  • Nominal Voltage EF 24A-(S2) 24 V AC/DC
  • Control: open-close with spring return
  • Auxiliary switches: 2 x EPU, 1 mA … 3 (0.5) A, AC 250 V (1x fixed at 10%, 1x 10-90% adjustable)

Technical data

  • Power consumption:
  1. In operation: 9 W @ nominal torque EF 230A-(S2) / 9.5 W @ nominal torque EF 24A-(S2)
  2. At rest: 4,5 W EF 230A-(S2) / 4,5 W EF 24A-(S2)
  3. For wire sizing: 21 VA EF 230A-(S2) / 16 VA EF 24A-(S2)
  • Direction of rotation: reversible by mounting
  • Angle of rotation: max. 95° , limited on both sides by means of adjustable, mechanical end stops. The actuator is overload proof; requires no limit switches and automatically stops when the end stop is reached
  • Running time motor : <75 s
  • Running time spring return : <20 s
  • Sound power level: max. 71 dB (A)

  • Degree of protection: IP54 in any mounting position

Wiring diagram

Electrical diagram

1: bleu

2: brown

S1: violet

S2: red

S3: white

S4: orange

S5: pink

S6: grey

Text for tender

Copy
  • The servomotor shall be of the open-close type with spring return and with a torque of 30 Nm for direct mounting on the damper axe and equipped with 2 position switches (Type S2). Angle max 95° with mechanical end stops. IP 54 in any mounting position EMC: CE 2004/108/EG
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