Honeywell ml7420 User Manual
ML6420, ML7420 NON-SPRING RETURN ELECTRIC LINEAR VALVE ACTUATORS
63-2533—03
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 Honeywell Automation and Control Products Sales Office (check white pages of your phone directory).
2. Honeywell Customer Care
1885 Douglas Drive North
Minneapolis, Minnesota 55422-4386
3. http://customer.honeywell.com or http://customer.honeywell.ca
In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Toronto, Ontario M1V 4Z9.
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:
a
Dependant on actuator model.
Dimensions: See Fig. 1.
Weight: 2.9 lb (1.3 kg).
Electrical Ratings:
Power Input: 24 Vac ±15%, 60 Hz.
Power Consumption:
ML6420: 6 VA maximum at 24 Vac.
ML7420: 7 VA maximum at 24 Vac.
Signal Source Output Resistance: 1K ohm maximum.
Signal Load: 1 mA maximum.
Ambient Ratings:
Temperature:
Ambient: 14°F to 122°F (-10°C to +50°C).
Storage: -40°F to +158°F (-40°C to +70°C).
Maximum Valve Medium: 300°F (150°C).
Humidity: 5 to 95 percent relative humidity, noncondensing.
Stem Force: 135 lbf (600N).
Signal Inputs (Supply Voltage Between Terminals):
ML6420:
B and 24 Vac: Drives valve stem down.
W and 24 Vac: Draws valve stem up.
ML7420: 0 to 10 Vdc or 2 to 10 Vdc.
Actuator Material:
Cover: ABS-FR plastic.
Base: PBTP-FR plastic.
Yoke: Diecast aluminum.
Actuator Stroke: 3/4 in. (20 mm).
Close-off Pressure Ratings: See Table 1.
Protection Standard: IP54.
Approvals:
Canadian Standards Association Listed.
Underwriter’s Laboratories, Inc. UL94-5V Flame Retardant.
Meets CE requirements.
Cable entry: Conduit connector and one knockout on case.
Accessories:
43196000-001 High Temperature Kit (1/2 to 3 in. valves).
Increases temperature range high-end to 428
°F
(220
°C).
For ML6420/ML6425
43191679-111 Single Auxiliary 10K ohm Potentiometer.
43191679-112 Single Auxiliary 220 ohm Potentiometer.
43191680-105 Dual Auxiliary Switch (for 24 Vac use only).
For ML7420/ML7425
43191680-205 Dual Auxiliary Switch (for 24 Vac use only).
Model
Run Time in
sec at 60 Hz
Stroke in
in. (mm)
Description
ML6420A 30 or 60
a
3/4 (20)
Electric Linear
Valve Actuator
ML7420A