SERIES 70 ELECTRIC ACTUATOR
Installation, Operation, and Maintenance Manual
33 of 48
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10.0 FIELD OR FACTORY INSTALLABLE OPTIONS
10.1 Auxiliary Switches
Auxiliary switch kits are a field or factory installable option for all Series 70
actuators. Switch kits are comprised of dry-contact (voltage free) SPDT mechanical
switches which are used to indicate travel position. Switches are arranged into 2
stacks. For Actuator Size E03 - 065, stack 2 activates 3° prior to switches in stack
1. For Actuator Size 130, 180, the switch that activates 3° early depends on the
direction of travel.
Auxiliary Switches
Figure 15.
Fixed auxiliary switches installed in a S70 actuator.
All Series 70 actuators can be fit with one set of fixed auxiliary switches. These are a
single set of switches which activate 3° before the travel limit switches. Adjustable
auxiliary (Mid-Travel) switches can be fit as single independent switches or in sets. If
fitted as a set, one of the switches in the set will activate 3° before the other. Each
switch set is activated independently from other switch sets.
The maximum number and configuration of switches depends on Actuator size and
application of the Series 70 actuator. Terminal block availability due to installation of
other options may also limit the maximum number of switches.
Switch Configured for
Modulating Application
Actuator Size
E03, E06, E08
Actuator Size
E12 thru 065
Actuator Size
130, 180
2 Limit Switches
Standard
Standard
N/A
2 Limit, 2 Fixed
70A000-22901536
70A000-22901536
Standard
2 Limit, 2 Fixed, 1 Mid
70A006-22912536
70A012-22912536
70B180-22912536
2 Limit, 2 Fixed, 2 Mid
N/A
N/A
N/A
2 Limit, 2 Fixed, 1 Set Mid
N/A
70A012-22914536
70B180-22914536
2 Limit, 2 Fixed, 2 Set Mid
N/A
N/A
N/A
