Install Instructions

M9220-Bxx-3 On/Off Electric Spring Return Actuators Installation Instructions 9
Technical Specifications
M9220-Bxx-3 On/Off Electric Spring Return Actuators (Part 1 of 2)
Power Requirements BGx Models AC 24 V (AC 19.2V to 28.8V) at 50/60 Hz: Class 2 (North America) or SELV
(Europe), 26 VA Running, 9.3VA Holding Position;
DC 24 V (DC 21.6V to 26.4V): Class 2 (North America) or SELV (Europe),
17.6 W Running, 2.8 W Holding Position
BAx Models AC 120 V (AC 102V to 132V) at 60 Hz: 0.25 A Running, 0.13 A Holding
Position
BDx Models AC 230 V (AC 198V to 264V) at 50/60 Hz: 0.15 A Running, 0.09 A Holding
Position
Auxiliary Switch Rating BxC Models Two Single-Pole, Double-Throw (SPDT), Double-Insulated Switches with
Gold Flash Contacts:
AC 24 V, 50 VA Pilot Duty;
AC 120 V, 5.8 A Resistive, 1/4 hp, 275 VA Pilot Duty;
AC 240 V, 5.0 A Resistive, 1/4 hp, 275 VA Pilot Duty
Spring Return Direction is Selectable with Mounting Position of Actuator:
Side A, Actuator Face Away from Damper for CCW Spring Return;
Side B, Actuator Face Away from Damper for CW Spring Return
Running and Spring Return Torque 177 lb⋅in (20 N⋅m) for a Single Actuator;
354 lb⋅in (40 N⋅m) for Two Like Models Mounted in Tandem
Rotation Range Adjustable from 30 to 90° CW or CCW with Optional M9220-603 Adjustable
Stop Kit; Mechanically Limited to 90°
Rotation Time Power On
(Running)
24 to 57 Seconds for 0 to 177 lb⋅in (0 to 20 N⋅m) at All Operating Conditions;
35 Seconds Nominal at Full Rated Load
Power Off
(Spring
Returning)
11 to 15 Seconds for 0 to 177 lb⋅in (0 to 20 N⋅m) at Room Temperature;
35 Seconds Maximum for 0 to 177 lb⋅in (0 to 20 N⋅m) at -22°F (-30°C)
130 Seconds Maximum for 0 to 177 lb⋅in (0 to 20 N⋅m) at -40°F (-40°C)
Cycles 60,000 Full Stroke Cycles
Audible Noise Rating Power On
(Running)
<66 dBA Nominal at 39-13/32 in. (1 m)
Power On
(Holding)
<18 dBA Nominal at 39-13/32 in. (1 m)
Power Off
(Spring
Returning)
<66 dBA Nominal at 39-13/32 in. (1 m)
Electrical Connections Actuator
(All Models)
48 in. (1.2 m) Halogen-Free Cable with 18 AWG (0.75 mm
2
) Wire Leads
Auxiliary
Switches
(BxC Models)
48 in. (1.2 m) Halogen-Free Cable with 18 AWG (0.75 mm
2
) Wire Leads
Conduit Connections Integral Connectors for 3/8 in. Flexible Metal Conduit
Mechanical Connections Standard
Shaft Clamp
Included with
Actuator
1/2 to 3/4 in. or 12 to 19 mm Diameter Round Shafts, or
3/8 and 1/2 in. or 10, 12, and 14 mm Square Shafts
Optional
M9220-600
Jackshaft
Coupler Kit
3/4 to 1-1/16 in. or 19 to 27 mm Diameter Round Shafts, or
5/8 and 3/4 in. or 16, 18, and 19 mm Square Shafts
Aluminum Enclosure NEMA 2 (IP54) for All Mounting Orientations
Ambient Conditions Operating -40 to 131°F (-40 to 55°C); 90% RH Maximum, Noncondensing
Storage -85 to 185°F (-65 to 85°C); 95% RH Maximum, Noncondensing
Dimensions See Figure 1.