Siemens SSC131.39U

Electromotoric actuator
SSC161.05U, SSC161.35U, SSC131.39U
For Powermite MT Series 2-way and 3-way globe valves
● SSC161.05U (fail-in-place), and SSC161.35U (fail-safe): Operating voltage AC/DC
24 V, modulating control signal DC 0...10 V
● SSC131.39U (fail-safe): Operating voltage AC 24 V, 3-position (floating) control
signal
● All actuators are self-calibrating to the valve stroke
● Modulating variants have position feedback signal
● Direct mounting with coupling nut, no tools required
● Manual override
● Position and actuator motion indication (LED)
● Positioning force 67 lbf (300 N)
● Parallel operation of multiple actuators possible
A6V12681517_enUS_a
Smart Infrastructure
02/09/2023

Siemens SSC131.39U Specifications

General

Brand	Siemens
Model	SSC131.39U
Category	Controller
Language	English

Summary

Use Cases and Technical Design

Parallel Operation Limits

3-Position Control Signal

Explains the behavior of the SSC131.39U actuator with a 3-position control signal (voltage at Y1/Y2).

Control Signal, Indication, and Ordering

DC 0...10 V Control Signal Behavior

Details how the valve opens/closes proportionally to the DC 0-10 V control signal at Y.

LED Status Indicators

Notes, Safety, and Commissioning

Engineering and Connection Notes

National Safety Regulations

Warns about potential personal injury and property damage from non-compliance with national safety regulations.

Mounting and Orientation Guidance

Provides warnings for mounting and instructions on actuator orientation relative to the valve.

Commissioning Procedures

Self-Calibration and Manual Operation

Actuator Self-Calibration Process

Explains that actuators self-calibrate upon receiving operating voltage to find their stroke endpoints.

Electrical Fail-Safe Function

Details the fail-safe mechanism for SSC161.35U/131.39U, including capacitor charging and return to fail-safe position.

Manual Actuator Stem Adjustment

Explains how to move the actuator stem manually using a 3-mm Allen wrench and a button.

Manual Operation Refinement and Cabling

Manual Operation Release and Calibration

Explains how to release the actuator from manual mode, triggering a self-calibration.

Cabling and Terminal Connections

Technical Data

Power Supply Specifications

Details operating voltage, frequency, power consumption, and fuse/breaker rating for the actuators.

Signal Input and Parallel Operation

Covers control signal types, input impedance, and limits for parallel operation of actuators.

Signal Output and Operating Parameters

Describes feedback signal, output current/voltage, resolution, and operating data like positioning force and stroke.

Electrical Connections, Standards, and FCC

Electrical Connection Details

Compliance Standards and Certifications

FCC Regulations and Interference

Connection Diagrams

Wiring Diagrams for SSC161.05 U35 U

Wiring Diagrams for SSC131.39 U