Honeywell MS4103 manual N20 Series MN6120 MN7220, NEMA2 IP54

Non-Spring Return Direct Coupled Actuator

N20 Series (MN6120; MN7220)

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 4.6 m2/50 sq ft (seal-less dampers; air friction-dependent).

FEATURES

•Control for air damper applications with up to 50 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.

SPECIFICATIONS
Actuator Type	Damper; Valve

DIMENSIONS DIAGRAMS

Rotational Stroke	95 ±3 degrees
Fail Safe Mode	Non-Spring Return
Rated Torque	175 lb-in. (20 Nm)
External Auxiliary Switches Available ..	Yes, SW2-US
Electrical Connections	Enclosed screw terminal strip
	(22 to 14 AWG)
Environmental Rating	NEMA2; IP54
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.

3-15/16

SHAFT (100) ADAPTER

1-3/16

(20.6)

SHAFT

ADAPTER

(REVERSED)

95°

1-7/8 (48)

8-25/32

(223)

3-5/8 (92)

Power Consumption, Driving	6 VA/6 W
Rotation to Open	By switch
Rotational Stroke Adjustment	Dual Integral Adj. Stops
	(3 degree increments)
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%
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

MIN 2-3/8 (60)

	5-3/16 (132)
	9-1/16[+/-1/64] (230 [+/-.5])
25/32 (20)		ANTI-ROTATION
			BRACKET
		9/32 (7)
		25/128 [+0.002-0.004]
5/64 (2)		(5) [+0.05-0.10]	M18923
	1/2 (13)

92