N20, N34 SERIES NON-SPRING RETURN DIRECT-COUPLED DAMPER ACTUATORS FOR FLOATING / 2-POSITION CONTROL GENERAL These direct-coupled damper actuators provide two-position and floating control for: • air dampers, • VAV units, • air handlers, • ventilation flaps, • louvers, and • reliable control for air damper applications with up to 4.6 m2 / 50 sq.ft. (20 Nm / 177 lb-in) or 7.8 m2 / 85 sq. ft. (34 Nm / 300 lb-in) (seal-less dampers; air frictiondependent FEATURES • Self-centering shaft adapter • Access cover to facilitate connectivity • Service/off for safe & easy servicing • Rotation direction selectable by switch • Declutch for manual adjustment • Mechanical end limits • Field-installable auxiliary switches • Mountable in any orientation (no IP54 if upside down) • Mechanical position indicator • CE and UL certified (230V models with CE only) SPECIFICATIONS Supply voltage CN6120/CN6134 24 Vac/dc ±15%, 50/60 Hz CN4620/CN4634 230 Vac ±15%, 50/60 Hz Nominal voltage CN6120/CN6134 24 Vac/dc, 50/60 Hz CN4620/CN4634 230 Vac, 50/60 Hz All values stated hereinafter apply to operation under nominal voltage conditions. Power consumption CN6120 6 VA / 3 W CN4620 8 VA / 3 W CN6134 6 VA / 3 W CN4634 10 VA / 4 W Ambient limits Ambient operating limits -20...+60 °C (-5...+140 °F) Ambient storage limits -40...+80 °C (-40...+175 °F) Relative humidity 5...95%, non-condensing Safety Protection standard IP54 as per EN 60529 Protection class II as per EN 60730-1 Overvoltage category III Lifetime Full strokes 60000 Repositions 1.5 million Mounting Round damper shaft 10...27 mm (3/8...1-1/16'') Square damper shaft 10...18 mm (3/8...11/16''); 45° steps Shaft length min. 22 mm (7/8'') End switches (when included) Rating 5 A (resistive) / 3 A (inductive) Triggering points 5° / 85° Torque rating CN6120 / CN4620 20 Nm (177 lb-in) CN6134 / CN4634 34 Nm (300 lb-in) Runtime 95 sec (60 Hz) / 110 sec (50 Hz or DC supply) Rotation stroke 95° ± 3° Dimensions see ''Dimensions'' on page 6 Weight (without cables) 1.35 kg (3 lbs.) Noise rating 40 dBA max. at 1 m Certification CE CN6120 / CN6134 CN4620 / CN4634 UL CN6120 / CN6134
read more