M9220-Bxx-3 On/Off Electric Spring Return Actuators Installation Guide
10
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.
