Product Overview

ManualsBrandsBarber Colman ManualsDampers16 lb-in. Actuator w/ Auxiliary Switch (24V)

Table Of Contents

TAC

1354 Clifford Avenue

P. O. Box 2940

Loves Park, IL 61132-2940

www.tac.com

Application

For two-position operation of dampers, valves, and

other equipment which require the return to normal

position upon power interruption.

Hazardous location models offer a sturdy cast

aluminum case with bolted cover. They have two 3/4"

pipe tapped openings for joints with rigid metal conduit.

All wiring is brought out to separate terminals for ease

of installation. These factory enclosure and actuator

assemblies are Underwriters Laboratories Listed.

Features

• Compatible with most SPST control devices

• Spring return

• 24, 120, 208, and 240 Vac models

• Actuators with part number suffix "-500" are

equipped with SPDT auxiliary switch

• Actuator has a rugged die cast aluminum housing

with two 1/2” conduit openings

• Hazardous location actuator housing has two 3/4"

pipe taped openings for rigid metal conduit

connection

• Oil immersed motor and gear train

Applicable Literature

• TAC Electric/Electronic Products Catalog, F-27382

• TAC Valve Products Catalog, F-27384

• TAC Cross-Reference Guide, F-26789

• AV-29x Valve Linkage for Hazardous Location Gear

Train Actuators General Instructions, F-27441.

• Apparatus for Hazardous Locations EN-56-2,

F-18451.

• AV-390 Series, Valve Linkage for Gear Train

Actuators General Instructions, F-24376.

• Material Safety Data Sheet (MSDS) for BCS-51-168

Oil (Until Feb. 1989)

Two-Position Actuators

General Instructions

MAx-305 & MAx-318 Series

MAx-405 Through MAx-419

Series

MA6-3xx, MA6-4xx, MA7-4xx,

MA8-3xx, MA8-4xx

(Hazardous Locations)

MA-3xx, MA5-318,

MA-4xx, MA5-419

(Standard)

• Material Safety Data Sheet (MSDS) for BCS-51-185

Oil (Until March 2002) (MAx-3xx-x-x-3 and

MAx-4xx-x-x-3)

• Material Safety Data Sheet (MSDS) for

BCS-51-185-1 Oil (Current) (MAx-3xx-x-x-4 and

MAx-4xx-x-x-4)

• High Temperature Exposure Performance (UL 555S)

MAx-31x-x-x-4, MAx-41x-x-x-4 Series Actuators

Engineering Information EN-216, F-27068

Summary of content (16 pages)

PAGE 1
TAC 1354 Clifford Avenue P. O. Box 2940 Loves Park, IL 61132-2940 www.tac.com MAx-305 & MAx-318 Series MAx-405 Through MAx-419 Series Two-Position Actuators General Instructions Application For two-position operation of dampers, valves, and other equipment which require the return to normal position upon power interruption. Hazardous location models offer a sturdy cast aluminum case with bolted cover. They have two 3/4" pipe tapped openings for joints with rigid metal conduit.
PAGE 2
SPECIFICATIONS Actuator Inputs Connections: Coded screw terminals. Control Circuit: Two-wire. Power Input: See Table-1. Actuator Outputs Torque: See Table-1. Shaft Rotation: MA-305, MA-405, MA6-305, MA6-405, CW 180° when power is applied. MA-318, MA-41x, MAx-318, MAx-41x, CW 180° when power is applied. Spring Return: CCW to the original position when the actuator is de-energized. Auxiliary Switch (-500 Models): SPDT makes (or breaks) the circuit at the powered end of stroke.
PAGE 3
Table-2 Actuator Part Numbers for Hazardous Location Applications.
PAGE 4
TYPICAL APPLICATIONS (Wiring Diagrams) L1 or H Thermostat or Switch 1 MA-305 MA-405 Series Actuator Motor Field Coil L2 or G 2 NC COM NO 1 Actuator rotates 180° CW when thermostat or switch contacts are closed. Actuator spring returns when thermostat or switch contacts are open. 2 Aux. Switch for -500 Models Figure-1 Typical Wiring for MA-305 and MA-405 Series.
PAGE 5
INSTALLATION Inspection Requirements Inspect the package for damage. If damaged, notify the appropriate carrier immediately. If undamaged, open the package and inspect the device for obvious damage. Return damaged products.
PAGE 6
Prick Point 1 2 3 Slot provides adjustment from 7/8" to 3-1/8". Figure-3 Location of Prick Point on Crank Arm. Install Connector at End of Slot on Crank Arm 90° Driven Shaft 0° Actuator Shaft 180° Install Connector at Prick-Point on Crank Arm 0° Figure-4 180° Actuator Rotation Driving a Damper Rotation of 90°. 4. Install a linkage connector onto the driven shaft crank arm, at the end of the slot. Refer to (Figure-4). 5.
PAGE 7
Valves Note: When mounting an actuator onto a valve, observe the following: • Allow 3" (76 mm) of clearance above the assembled actuator and valve for the removal and reattachment of the actuator. • Always install single-seat valves with pressure under the seat. • Install all two-way valves so that they close against the flow. A tag or an arrow on the valve body indicates proper flow direction. • Always install three-way mixing valves with two inlets and one outlet.
PAGE 8
Actuator 1 Nylon Bushing Plunger Assembly Front Cover Plunger Cam Indicator Mounting Bracket Indicator Screw Stem Extension Connecting Pin Cover Screws (2) Mounting Screws (3) 2 Stem Locknut Packing Nut 1 Mounting Nut 1 Valve Body (VB-7XXX Shown) 1 1 Not included in the Linkage Kit. 2 Mounting screws attach the bracket to threaded mounting holes in the bottom of the hazardous location housing. Figure-6 Typical Components for Valve Installation of Hazardous Location Actuator.
PAGE 9
WIRING Hazardous Location Models Make all electrical connections to the assembly in accordance with the job wiring diagram, the National Electric Code Article 500, and in compliance with the local electrical codes. Two 3/4" pipe tapped openings are provided in the housing for rigid conduit connections. It is recommended to insert a chase nipple from inside of the housing to prevent threads from cutting or damaging wiring.
PAGE 10
Table-3 Power Wire Selection. Actuator Series MA-305 MA-405 MA-318 MA-416, MA-418, MA-419 Wire Size AWG Maximum Run a b ft (m) 14 122 (37) 12 191 (58) 10 305 (93) 14 2800 (853) 14 44 (13) 12 68 (21) 10 110 (34) 14 950 (290) 12 1580 (482) a Each run has two wires. b The length given is for a maximum two-wire run, for one actuator. When multiple actuators are used, determine the maximum run for each actuator by dividing the number of actuators into the corresponding maximum run.
PAGE 11
MAINTENANCE Caution: MA-300 series and MA-400 series actuators that are used in applications where they are energized for extended periods of time must be electrically cycled at least once every six months to ensure correct operation. Regular maintenance of the total system is recommended to assure sustained, optimum performance. FIELD REPAIR None. Replace an inoperative actuator with a functional unit. DIMENSIONAL DATA 15/16 (24) 4-3/4 (121) 4 (102) 1/2 (13) Dia.
PAGE 12
9-9/16 (243) 4-1/2 (114) 10-5/8 (270) 9 (229) 1/4 (6) 2-1/8 (54) 1/2 (13) Dia. Shaft 4-7/32 (107) 3/4 (19) Pipe Tap On Each Side 9 (228) 2-15/16 (51) 4-13/32 (112) 8-1/4 (209) 15/16 (24) 6-1/8 (156) 2-1/8 (54) 7-1/2 (190) Dimensions are in inches (mm). 3-3/4 (95) 3-1/16 (78) 21/64 (8) Dia. Hole (1 of 3) Figure-10 Dimensions of MA6-3xx, MA6-4xx, and MA7-4xx Damper Actuators for Hazardous Locations. 12 © Copyright 2007 TAC All Rights Reserved.
PAGE 13
4-1/2 (114) 9 (229) 10-13/16 (275) 1/4 (6) 2-1/8 (54) 1/8 (3) 9 (228) 7 (178) 3/4 (19) Pipe Tap On Each Side 2-15/16 (51) 4-13/32 (112) Dimensions are in inches (mm). 4-1/4 (108) 8-1/4 (209) Figure-11 Dimensions of MA7-4xx, MA8-3xx, and MA8-4xx Valve Actuators for Hazardous Locations. F-06491-28 © Copyright 2007 TAC All Rights Reserved.
PAGE 16
© Copyright 2007, TAC All brand names, trademarks and registered trademarks are the property of their respective owners. Information contained within this document is subject to change without notice. TAC 1354 Clifford Avenue P.O. Box 2940 Loves Park, IL 61132-2940 F-06491-28 www.tac.