ML7421A,B ELECTRIC LINEAR VALVE ACTUATOR
63-2517—1
2
ORDERING INFORMATION
When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the
TRADELINE® Catalog or price sheets for complete ordering number.
If you have additional questions, need further information, or would like to comment on our products or services, please write or
phone:
1.
Your local Home and Building Control Sales Office (check white pages of your phone directory).
2.
Home and Building Control Customer Logistics
Honeywell Inc., 1885 Douglas Drive North
Minneapolis, Minnesota 55422-4386 (612) 951-1000
In Canada—Honeywell Limited/Honeywell Limitée, 155 Gordon Baker Road, North York, Ontario M2H 2C9.
International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France,
Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.
SPECIFICATIONS
Models:
Model No.
Description
Signal
Input
Stroke
in in.
(mm)
Run
Time in
sec at
60 Hz
ML7421A1008
Electric
Linear
Valve
Actuator
2 to 10
Vdc or 0
to 135
ohm
3/4
(20)
95
ML7421A1024
0 to 10
Vdc
3/4
(20)
95
ML7421B1007
2 to 10
Vdc or 0
to 135
ohm
1-1/2
(38)
175
ML7421B1015
0 to 10
Vdc
1-1/2
(38)
175
Electrical Ratings:
Power Input: 24 Vac (+10%, -15%), 60 Hz.
Power Consumption: 12 VA maximum at 24 Vac.
Stem Force:
405 lbf (1800N).
Ambient Temperature Range:
14
°
F to 122
°
F (-10
°
C to +50
°
C).
Storage Temperature Range:
-40
°
F to +158
°
F (-40
°
C to +70
°
C).
Humidity:
5 to 95 percent relative humidity, noncondensing.
Close-off Pressure Ratings:
See Tables 1 and 2.
Protection Standard:
IP54.
Insulation:
Class I (24 Vac).
Approvals:
UL94-5V Flame Retardant.
Meets CE standards.
Cable entry:
Two knockout holes for 1/2 in. and 3/4 in. conduit standard on
actuator case.
Actuator Material:
Cover: ABS plastic.
Yoke and Base: Diecast aluminum.
Weight:
5.1 lb (2.3 kg).
Dimensions:
See Fig. 1.
Accessories:
NOTE:
The following dual auxiliary potentiometers can be
added but provide only a single auxiliary
potentiometer function.
43191679-103 Dual 220 Ohm Auxiliary Potentiometer
for ML7421A.
43191679-104 Dual 220 Ohm Auxiliary Potentiometer
for ML7421B.
43191680-102 Dual Auxiliary Switch for ML7421A,B
(for 24 Vac use only).
43196000-101 High Temperature Kit. Includes 1/4 in. and
3/8 in. stem extenders. The kit increases the
temperature range to 428
°
F (220
°
C).
