Data Sheet for Product

2
Siemens
A6V11858278_en
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_c
Smart Infrastructure
2021
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08
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06
Use
● For radiator valves, VDN.., VEN.., VUN..
● For Siemens PICV (pressure independent combi valves) VPP46.. and VPI46..
● For MiniCombi valves VPD.., VPE..
● For small valves VD1..CLC
● For radiator valves (M30 × 1.5) from other manufacturers without adapter
● Typically in radiator, chilled ceiling, VAV and fan coil unit applications
● Max.10 units of SSA161.05HF/SSA161E.05HF are able to operate in parallel, provided
the controller output suffices.
NOTICE
SSA161E.05HF is only compatible with VPD.., VPE.., VPP46.. and VPI46…
Technical design
When the actuator is driven by DC 0…10 V control voltage or a DC 4…20 mA signal, it
produces a stroke, which is transmitted to the valve stem.
The description of operation in this document applies to valve versions that are fully open
when valve stem is extended / no actuator is mounted (Normally Open (NO) valve).
Control signal with input impedance 4-20 mA 150Ω (for SSA151.05HF)
● The valve opens / closes in proportion to the con-
trol signal at Y.
● At 4 mA, actuator stem extended, the valve is fully
closed.
● When no power is supplied, the actuator maintains
its current position.
● This actuator provides a 4…20 mA position feed-
back signal proportional to the stroke of the actua-
tor stem.
Y = Control signal Y [mA]
H = Percentage of calibrated valve stroke