SERIES 70 ELECTRIC ACTUATOR
Installation, Operation, and Maintenance Manual
41 of 48
© 2022 BRAY INTERNATIONAL, INC. ALL RIGHTS RESERVED. BRAY.COM
The Information contained herein shall not be copied, transferred, conveyed, or displayed in any manner
that would violate its proprietary nature without the express written permission of Bray International, Inc.
NOTES:
> Euro receptacles use 22 AWG wire rated at 250V, 4 Amp. Pin configuration
interfaces with European standards.
> Mini Receptacles use 18 AWG wire rated at 300V, 9 Amp. Pin configuration
conforms to ANSI B93.55M.
> Factory will need wiring diagram drawing number and model of the existing unit
if it is to be retrofit with receptacles. New wiring diagram will be provided based
upon this information.
> Some configurations may limit use of receptacles due to number of wires
entering through the conduit.
10.9 External Signal Feedback Potentiometer
Potentiometers are a field or factory installable option for continuous duty
actuators. Actuators which are not continuous duty do not have a pot gear fitted
on their indicator shafts and must be fitted with a new indicator shaft in the factory.
S70 actuators fitted with electronics for modulating applications already fit a
potentiometer and cannot fit a second. In this case, retransmission of position is
provided through the modulating electronics package.
Feedback Potentiometer Kit:
> Potentiometer Assembly
> #6 Cross Drive Pan Head Screws (Qty:2)
> #6 Internal Lockwashers (Qty:2)
> 4-pole Terminal Strip
> Terminal Strip Marker
> Wiring Diagram
Tools Required:
> Screwdriver, 3/16" [5 mm] tip flat blade
> Screwdriver, No.2 Phillips
Raised Green Rib
Figure 21.
S70 Potentiometer installation.
Orient the actuator in the full open (counter clockwise) position.