TAC-Invensys MA-418-500 submerged actuator, is for Two-position operation of damper, valves, and other equipment which require the return to normal position upon power interruption. The MA-418-500 includes an SPDT auxiliary switch, spring return, rugged die cast aluminum with two 1/2-inch conduit openings, an oil immersed motor and gear train, and is compatible with most SPST control devices.
Product Specifications
| Power Supply | 120 VAC (60 Hz) |
| Auxiliary Switches | SPDT makes (or breaks) circuit at powered end of stroke. |
| Input | 70 W (Running) 25 W (Holding) |
| Running Power Consumption | 108 VA |
| Holding Power Consumption | 42 VA |
| Rated Torque | 60 lb-in |
| Rated Torque | 6.8 N-m |
| No Load Timing at 75°F (24°C) | 20 |
| Nominal Damper Area (Parallel) | 33 ft2 |
| Nominal Damper Area (Parallel) | 3.1 m2 |
| Nominal Damper Area (Opposed) | 43 ft2 |
| Nominal Damper Area (Opposed) | 4 m2 |
| Control Circuit | Two-Wire |
| Shaft Rotation | CW 170° when power is applied. |
| Spring Return Direction | CCW to original position when actuator is de-energized |
| Ambient Temperature Limits (Shipping & Storage) | - 40°F to 136°F (- 40°C to 58°C) |
| Humidity Ratings (Non Condensing) | 5% to 95% |
| Environmental Location | NEMA Type 4 with gasket (provided) and water-tight conduit connectors (not provided) installed. |
| Connections | Coded screw terminals |
| Case | Die cast aluminum with two 1/2" conduit openings. |
| Base Actuators Dimensions (H x W x D) | 5 3/4" x 5 3/8" x 6 9/16" |
| Base Actuators Dimensions (H x W x D) | 146 mm x 136 mm x 167 mm |
| Hazardous Location Actuators Dimensions ( H x W x D) | 8 7/8" X 8 1/2" X 10 5/8" |
| Hazardous Location Actuators Dimensions ( H X W X D) | 225 mm x 216 mm x 167 mm |
| Damper Linkage | AM-111 Crank arm for 5/16" diameter damper shaft
AM-112 Crank arm for 3/8" diameter damper shaft
AM-113 Crank arm for actuator or 1/2" diameter damper shaft
AM-115 Crank arm for 7/16" diameter damper shaft
AM-116 Splined crank arm for actuator
AM-122 Linkage connector straight type
AM-123 Damper Clip
AM-125 5/16" diameter x 20" damper rod
AM-125-048 5/16" diameter x 48" damper rod
AM-132 Ball joint connector
AM-161 Damper linkage kit
AM-161-1 Damper linkage kit
AM-301 90° mounting bracket (except MA6, MA7, MA8-XXX) |
| Mounting | Allow 6" (152 mm) clearance behind the actuator wiring compartment. Outright Shaft Horizontal |
| Application | Damper and Valve Actuators |
| Valve Linkage | AV-29 & AV-300 2 1/2" & 3" VB-9323
AV-391 1/2" to 1 1/4" VB-92XX or VB-93XX
AV-392 1 1/2" & 2" VB-92XX or VB-93XX
AV-395 2 1/2" to 4" VB-92XX or VB-931X |