User Guide

8
Wiring Two 1/2” conduit knockouts are provided on the actuator case. Refer to Figure-5 for terminal
locations.
Figure-6 Typical Components for Valve Installation of Hazardous Location Actuator.
Indicator Screw
Front Cover
Nylon Bushing
Actuator
Mounting Screws (3)
Mounting Bracket
Valve Body
(VB-7XXX Shown)
Plunger Assembly
Connecting Pin
Stem Extension
Stem Locknut
Packing Nut
Mounting Nut
Cover Screws (2)
Indicator
Plunger Cam
2
2
"C" Ring
1 Mounting bracket NYBA-61 and stem
extension NYBA-37 must be used with
linkage kit AV-391 when mounting
actuators assembled in the hazardous
location housing.
2 Not included in the AV-391 Linkage Kit.
3 Mounting screws attach the bracket to
threaded mounting holes in the bottom of
the hazardous location housing.
1
1
3
2
2
Feed-Through
Terminal Bloc
k
Case Ground
Power Terminals
A
ux. Switch
(-500 Models)
(Shown with Back Cover Removed)
N.O.
N.C.
C
L 1
L 2
Figure-7 Actuator Terminal Locations.