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Non-Spring Return Direct Coupled Actuator
N34 Series (MN6134; MN7234)
SUBMITTAL SHEETS
N34 Series (MN6134; MN7234)
These direct coupled damper
actuators provide adjustable
modulating control for air dampers,
VAV units, air handling units,
ventilation flaps, louvers, and reliable
control for air damper applications
with up to 7.9 m2/85 sq ft (seal-less
dampers; air friction-dependent).
SPECIFICATIONS
Actuator Type .......................................Damper; Valve
Rotational Stroke ..................................95 ±3 degrees
Fail Safe Mode .....................................Non-Spring Return
Rated Torque ........................................300 lb-in. (34 Nm)
External Auxiliary Switches Available ..Yes, SW2-US
Electrical Connections .........................Enclosed screw terminal strip
(22 to 14 AWG)
Environmental Rating ...........................NEMA2
Frequency ............................................50 Hz; 60 Hz
Manual operation .................................Declutch mechanism
Mounting ..............................................Direct Coupled
Maximum Noise Rating,
Driving (dBA @ 1m) ..............................40
Timing, Nominal Driving at 60 Hz .........95 sec.
Power Consumption, Driving ................8 VA/6W or 9 VA/9W
Rotation to Open ..................................By switch
Compatible Damper Shafts ..................3/8 to 1.06 round or 3/8 to
11/16 square
(10 to 27 round or 10 to 18
square)
Shaft Adapter Type ..............................Self-centering clamping
Supply Voltage .....................................24 Vac ±15%, 24 Vdc
Materials ...............................................Plenum rated plastic housing
Operating Humidity Range (% RH) ......5 to 95% RH, non-condensing
Ambient Temperature Range ...............-5 F to 140 F (-20 C to 60 C)
Storage Temperature Range ................-40 F to 175 F (-40 C to 80 C)
Weight ..................................................3.2 lb (1.45 kg)
Includes ................................................Mounting bracket, self-
centering shaft adapter
Comments ............................................Integral 1/2 in. NPSM conduit
connection.
APPROVALS
CE .........................................................89/336/ECC, 73/23/EEC
C-Tick ...................................................N314
Underwriters Laboratories, Inc. ............UL873, Plenum Rated
Canadian Underwriters
Laboratories, Inc. .................................cUL C22.2 No. 24-93
FEATURES
• Control for air damper applications with up to 85 sq ft
assuming 3.5 lb-in. per sq ft of damper area, velocity
independent.
• Patented self-centering shaft adapter.
• Access cover to facilitate connectivity.
• Declutch for manual adjustment.
• Mechanical end limits.
• Field-installable auxiliary switches.
• Rotation direction selectable by switch.
• Mountable in any orientation (no IP54 if upside down).
• Mechanical position indicator.
• CE approved. UL approved.
DIMENSIONS DIAGRAMS
M18923
3-15/16
(100)
SHAFT
A
DAPTER
SHAFT
ADAPTER
(REVERSED)
1-3/16
(20.6)
MIN 2-3/8 (60)
ANTI-ROTATION
BRACKET
9-1/16[+/-1/64] (230 [+/-.5])
25/32 (20)
9/32 (7)
25/128 [+0.002-0.004]
(5) [+0.05-0.10]
1/2 (13)
5/64 (2)
95°
1-7/8 (48)
8-25/32
(223)
5-3/16 (132)
3-5/8 (92)