Product catalog Product catalog - Unicom

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Pressure switches
8-24
Differential pressure switch for liquid, gas (DDCM)
For flow monitoring and differential pressure control of steam, gas, hot/cold water and automatic
checking of filter plant.
Kind of pressure differential pressure, relative
Pressure connection internal thread G1/4
Electrical connection Plug DIN 43650
Protection class IP54
Housing material rugged housing of seawater resistant aluminium die casting GD Al
Si 12
Media temp. -25 ... 70 oC Media temp. limit temperatures up to 85 oC are allowable for short periods. Higher
temperatures are possible, provided that the limit is safeguarded
by suitable measures (e.g. water tube trap, see Accessories for
Pressure Switches / Transmitters)
Ambient temperature -25 ... 70 oC Ambient temp. limit at temperatures below 0 oC, ensure that no water condensation
can arise in the sensor and in the switching device
Switch function/capacity SPDT Microswitch; capacity 5 A inductive, 8 A resistive
Optional functions add the type numbers below to the listed type numbers for extra
functionality as described
-301: terminal connection housing, IP65
-205: maximum limiter with reclosing lock-out, interlocking
with increasing pressure
-206: Minimum limiter with reclosing lock-out, interlocking with
falling pressure
-307: two microswitches, switching in parallel or in succession,
fixed switching interval, terminal connection case, IP65 (with
the exception of DDCM252, 662, 1602, 6002)
-217: two microswitches, 1 plug, switching in succession,
adjustable switching interval (with the exception of DDCM252,
662, 1602, 6002)
-213: gold-plated contacts, switching capacity: max. 24 Vdc,
100 mA, min. 5 Vdc, 2 mA. And others not available with
adjustable switching difference.
-351: protection class IP65 and switching housing with surface
protection (chemical version)
-513: gold-plated contacts, switching differential permanent,
IP65, switching capacity: max. 24 Vdc, 100 mA, min. 5 Vdc, 2
mA; suitable isolating switching amplifier, degree of protection
EEx-i
Pressure adjustment range Switching differential Max. pressure Sensing element material Type
bar bar bar
0,004 ... 0,025 0,002 0,5 Perbunan + Aluminium DDCM252
0,01 ... 0,06 0,015 1,5 Perbunan + Aluminium DDCM662
0,02 ... 0,16 0,02 3 Perbunan + Aluminium DDCM1602
0,1 ... 0,6 0,035 3 Perbunan + Aluminium DDCM6002
-0,1 ... 0,4 0,15 15 1.4305 + 1.4571 DDCM014
0,2 ... 1,6 0,13 15 1.4305 + 1.4571 DDCM1
1 ... 4 0,2 25 1.4305 + 1.4571 DDCM4
0,5 ... 6 0,2 15 1.4305 + 1.4571 DDCM6
3 ... 16 0,6 25 1.4305 + 1.4571 DDCM16
Syphon for high temperature, steel, U-shape (for more accessories, see Accessories
for Pressure Switches / Transmitters)
http://products.ecc.emea.honeywell.com/europe
U430B