Data Sheet

2052 Actuator
D103295X012
Product Bulletin
61.1:2052
November 2014
3
Options
Top-Mounted Handwheel: For infrequent use as a
manual actuator (see figure 2). For repeated or daily
manual operation, the unit should be equipped with a
declutchable handwheel actuator.
Declutchable Handwheel Actuator: An end-mounted
manual actuator can be used to provide on-site control
and to provide override capabilities. See bulletin
61.8:1078
for handwheel actuator specifications. The
declutchable handwheel is not compatible with the
lockout option on the size 2 and size 3 actuators.
Limit Switches:
J Micro-Switch or NAMCO switches
for one or two single-pole, double-throw contacts, or
J GO proximity switches for one or two single-pole,
double-throw contacts are available. See separate
bulletins for limit switch information.
Position Indicating Switch: TopWorxt DXP M21GNEB
switch for one through six single pole, double throw
switch contacts are available. See separate bulletin for
position indicating switch information.
Positioner: For precise positioning of the valve control
element, the actuator should be equipped with a
positioner. For additional information, contact your
Emerson Process Management sales office with
complete service conditions.
Optional Lockout Option: An actuator locking
mechanism is available, which can be used to keep the
actuator in a locked position (the same as the
spring-fail position) during maintenance. The padlock
is customer supplied. The lockout option on the size 2
and size 3 actuators is not compatible with the
declutchable handwheel.
Cold Service Construction: For services with ambient
temperatures down to -60_C (-76_F). This
construction is suitable for cold climate regions per
GOST 15150. Contact your Emerson Process
Management sales office for details. Note that the
current SIL certification for the 2052 actuator is only
relevant for the standard temperature ratings shown in
table 1. Not available with the top-mounted
handwheel option.
Figure 1. Fisher 2052 Assembly