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PS3
Pressure Switch
Alco Controls
D A T A S H E E T
PS3__35003_EN_R08.doc 2 / 10 09.08.2011
Technical data
Pressure sensing element
Type of
diaphragm
Max. medium
temperature
Construction Material
Snubber Pressure
Ranges
TÜV
approval
Function
Code *
Possible
Pressure Conn.
Standard
+ 70° C
Single diaphragm Bronze no 1-5 No A,R A,K,L,S,U,X
temperature Double diaphragm Bronze no 1-5 Yes B,S,W A,K,L,S,U,X
High
+ 150° C
Bellows Stainless yes 6 Yes B,S,W S,U,X
temperature steel 6 no A,R S,U,X
*) see page 7 for more details.
Note: For high temperature applications, i. e. medium
temperatures between 70 °C and 150 °C, the maximum
ambient temperature must be derated as per drawing.
E.g.: on medium temperature 120 °C the ambient temperature
of 55 °C around the switch housing should not be exceeded.
Maximum ambient temperature (°C)
70
60
50
40
30
70 80 90 100 110 120 130 140 150
Medium temperature (°C)
Standard
(SPDT)
Standard (SPDT)
Gold plated contacts
Micro switch
(SPDT)
Micro switch(SPDT)
Gold plated Contacts
Inductive load (AC15) 3A / 230VAC 0,1A / 230VAC 1.5A / 230VAC 0,1A / 230VAC
Inductive load (DC) 0,1A / 230VDC 0,1A / 230VDC 0.1A / 230VDC 0,1A / 230VDC
Motor rating amps (FLA) 6A / 120 / 240VAC _ 2.5A / 120 / 240VAC
_
Lock rotor amps (LRA) 36A / 120 / 240VAC _ 15A / 120 / 240VAC
_
Note: Standard contact not suitable for electronic applications (< 100 mA)
Protection class (IEC 529)
with terminal cover
with appliance socket or cables with
plug PS3-Nxx / -Lxx / -215 / -415
IP 00
IP 30
IP 65
Temperature range TS:
ambient, storage and
transportation
medium
-40°C to 70°C
-40°C to 70°C
Resistance to vibration (at 10..1000 Hz) 4g -40°C to 150°C for Range 6
Medium compatibility * HFC, HCFC Available approvals TÜV, UL
Weight (approx.) 0.1 kg
*) NOTE: PS3 are not released for use with inflammable refrigerants.
Pressure Ranges
Pressure Range
code
Type of contact Adjusting
Range
(bar)
Max. Operating
Pressure PS
(bar)
Proof
Press. PT
(bar)
Differential
reset (bar)
Differential
automatic
(bar)
1 / A -0.6 .. 6 27 30 approx. 1,3
3 /C Standard 0.1 .. 16 approx. 1,5 see charts on page
4 / D and 5 / E (SPDT) 6 .. 30 31 36 approx. 4 4 - 6
6 / F 10 .. 43 43 48 approx. 5
J / S -0.6 .. 6 27 30 approx. 0.2 to 0.3
L / U Micro switch 0.1 .. 16 approx. 0.3 to 0.45
N / W (SPDT) 6 .. 30 31 36 approx. 0.4 to 0.6
O / X 10 .. 43 43 48 approx. 0.5 to 0.8
Tolerances (bar)
Range code
1 / J 3 / L 4 5 / N 6 / O 4,5,6 (TÜV appr.)
Setting
±0.16 ±0.4 ±0.8 ±0.8 ±0.8
according to EN 12 263
Tolerances are valid between -20...+55°C.