Data Sheet for Product

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Siemens Modulating refrigerant valves with magnetic actuator‚ PS43 CE2N4721en
Smart Infrastructure 2020-12-21
Disposal
The device is considered electrical and electronic equipment for
disposal in terms of the applicable European Directive and may not
be disposed of as domestic garbage.
· Dispose of the device through channels provided for this
purpose.
· Comply with all local and currently applicable laws and
regulations.
Warranty
Application-specific technical data must be observed.
If specified limits are not observed, Siemens will not assume any
responsibility.
Technical data
Functional actuator data
Power supply
Extra low-voltage only (SELV, PELV)
Operating voltage
1)
AC 24 V + 15 % / -10 %
Frequency
50…60 Hz
Typical power c
onsumption P
med
refer to «Type summary» table
Rated apparent power S
NA
refer to «Type summary» table
Required fuse I
F
1.6…2.5 A, slow
External supply line protection Fuse slow max. 10 A
or
Circuit breaker max. 13 A
Characteristic B, C, D according to
EN 60898
or
Power source with current limitation of max.
10 A
Input
Positioning signal
ZM101/A DC 0…10 V or DC 0…20 V Phs (phase cut)
ZM121/A DC 4…20 mA or DC 0…20 V Phs
ZM111 DC 0…20 V Phs
Input resistance
DC 0…10 V > 100 kW
Input re
sistance DC 4…20 mA < 150 W
Positioning time Positioning time < 1 s
Electrical connections
Cable entry
2 x Pg11 (ZM101/A, ZM121/A)
Connection terminals max. 1 x 4 mm
2
wire cross-section
Min. wire cross-section 0.75 mm
2
Functional valve data Permissible operating pressure Max. 4.3 MPa (43 bar)
2)
Max. differential pressure Dp
max
AB ® A
AB ® B
refer to «Type summary» table
0.8 MPa (8 bar)
Leakage rate Dp = 0.1 MPa (1 bar)
AB ® A
AB ® B
max. 0.05 % of k
vs
-value
max. 0.5 % k
vs
Valve characteristic (stroke, k
v
) linear (to VDI / VDE 2173), optimized in low
opening range