Honeywell evohome Thermal actuator, passive (NC) MT4-230-NC Data Sheet

Product codes
MT4-230-NC
Page of 5
MT SMALL LINEAR THERMOELECTRIC ACTUATORS 
 
 
Manufactured for and on behalf of the Environmental and Combustion Controls Division of Honeywell Technologies Sàrl, Ecublens, Route du Bois 37, Switzerland by its Authorized Representative:
 
 
Automation and Control Solutions 
Honeywell GmbH 
Böblinger Straße 17 
D-71101 Schönaich 
Phone: (49) 7031 63701 
Fax:     (49) 7031 637493 
http://europe.hbc.honeywell.com 
 
Subject to change without notice. Printed in Germany 
EN0B-0490GE51 R1006 
Valve Action 
NO (normally-open) version
A
B
A
B
AB
A
B
AB
A
B
A
B
AB
A
B
AB
NC (normally-closed) version
NC
NO
NC
NO
 
Fig. 6. Valve action 
Normally open: 2-way valve, A-B open without power; 
Normally closed: 2-way valve, A-B shut without power; 
 
NOTE:  Fig. 6 is a schematic diagram showing typical valve 
action. Actual function can vary depending upon the 
individual type of valve. 
 
DIMENSIONS 
X
H
L
W
dimension MT4-xxx MT8-xxx
W
H
L
X
57
42
45
6
65
 
Fig. 7. Dimensions (in mm)