Schneider Electric MA-3xx Series, MA-4xx Series Catalog Page

MA-3xx Series, MA-4xx Series

Part Numbers for Hazardous Location Applications

Model No.

Damper Actuator Part Numbers for

Hazardous Locations

a b

Valve A ctuator Part Numbers f or Hazardous Locations

MA-305 MA6-305 

MA-305-500 MA6-305-500 

MA-405 MA6-405 

MA-405-500 MA6-405-500 

MA-318 MA6-318 MA8-318

MA-318-500 MA6-318-500 MA8-318-500

MA-416 MA6-416 MA8-416

MA-416-500 MA6-416-500 MA8-416-500

MA-418 MA6-418 MA8-418

MA-418-500 MA6-418-500 MA8-418-500

MA-419 MA6-419 MA8-419

MA-419-500 MA6-419-500 MA8-419-500

MA5-419 MA7-419 MA7-419

MA5-419-500 MA7-419-500 MA7-419-500

Class 1, Groups C and D, and Class 2, Groups E, F and G, hazardous locations. Ref. EN-56-2, F-18451.

Models for hazardous locations are only available as factory enclosure/actuator assemblies.

Specifications

Control circuit Two wire.

Spring return CCW to original position when actuator is de-energized.

Auxiliary switch (-500 models) SPDT makes (or breaks) circuit at powered end of stroke (fixed).

Nominal damper area Actuator sizing should be done in accordance with damper manufacturer’s specifications.

Environment

Ambient temperature limits

Humidity 5 to 95% RH, non-condensing.

Locations NEMA 4

Connections Coded screw terminals.

Case Die cast aluminum with two 1/2 in. conduit openings.

Mounting

Dimensions

Base actuators 5-3/4 H x 5-3/8 W x 6-9/16 D in. (146 x 136 x 167 mm).

Hazardous location actuators 8-7/8 H x 8-1/2 W x 10-5/8 D in. (225 x 216 x 167 mm).

No load timing

at 75qF (24qC)

Agency Listings

UL 873 File E9429 Temperature Indicating and Regulating Equipment.

CSA C22.2 No. 24 File LR 3728.

Shipping and storage: -40 to 136qF (-40 to 58qC). Operating: -40 to 136q(-40 to 58qC).

Allow 6 in. (152 mm) clearance above the actuator wiring compartment. Refer to Model Chart for additional data.

20 seconds.

When used with gasket (provided) and water-tight conduit connectors (not provided).

Spring return timing with full load opposing spring approximately 60 seconds.

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