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Datasheet generated 2026-10-07
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Danfoss RT19W Pressure Switch 5 to 25 SPDT Auto Reset (017-518166)

Danfoss · Sensors & Instrumentation · Pressure Sensors · Denmark · danfoss.com
Part Number
017-518166  ·  HS 9032.20
Danfoss RT19W Pressure Switch 5 to 25 SPDT Auto Reset (017-518166)

Danfoss RT19W mechanical pressure switch with bellows sensing element, single-pole double-throw (SPDT) contact and auto reset. Regulating range 5 to 25 bar; G 1/2 male pressure connection (ISO 228-1); enclosure IP66. Danfoss code number 017-518166.

Technical Specifications

BrandDanfoss
ModelRT19W pressure switch
Code number017-518166
Regulating range (Pe)5 to 25 bar
Maximum working pressure42 bar
Contact functionSPDT (single-pole double-throw)
ResetAuto
Differential1.2 bar (fixed)
Pressure sensing elementbellows
Pressure connectionG 1/2 male (ISO 228-1)
EnclosureIP66
Ambient temperature range-40 to +70 degC (-40 to +158 degF)
Cable entry2 x Pg 13.5
Contact ratingAC15=3 A at 400 V; AC1=10 A at 400 V; AC3=4 A at 400 V; DC13=12 W at 220 V; LR=28 A at 400 V
Maximum test pressure47 bar
EAN5702428043014
Net weight1.03 kg; gross weight: 1.146 kg
StandardsEN 60947-4, EN 60947-5
ApprovalsCE, EAC, CCC, GL, LVD, PED, RMRS
TypeRT19W
Product groupSwitches and thermostats
Ambient temperature range [°C] [max]70 °C
Ambient temperature range [°C] [min]-40 °C
Ambient temperature range [°F] [max]158 °F
Ambient temperature range [°F] [min]-40 °F
ApprovalCCC
Burst pressure [bar]63 bar
CE markYes
China RoHS complianceYes
Contact rating @ 250K cyclesAC15=1 A, 400 V
Differential [bar]1.2 bar
Differential [psi]17.4 psi
EEE category5 small equipment (any external dimension < 50 cm)
Electrical conn
Male/FemaleFemale
Electrical connectionScrewed cable entry
Electrical connection size2xPg 13.5
Electrical connection standardDIN 40430
Electrical spec. standardEN 60947-4/-5
EN 60947 electrical propertiesInsulation: 400V
EN 60947 wiring propertiesFlex, ferrules: 0.2-1.5 mm2
Enclosure rating IPIP66
EU RoHS complianceOut of scope
Fluid Group1
Identical product017-142666
In scope of WEEEYes
Max. test pressure [bar] Pe47 bar
Max. test pressure [psig]682 psig
Max. Working Pressure [bar]42 bar
Max. Working Pressure [psig]610 psig
PED categoryIV
Pressure connection size1/2
Pressure connection standardISO 228-1
Pressure connection typeG
Pressure Male/FemaleMale
REACH Candidate List substancesLead (CAS no. 7439-92-1)
Regulation range [bar] Pe [max]25 bar
Regulation range [bar] Pe [min]5 bar
Regulation range [psig] Pe [max]362.6 psig
Regulation range [psig] Pe [min]72.5 psig
Reset functionAuto

Properties

MaterialBellows sensing element
Pressure rating42 bar
Temperature range-40 to +70 degC
IP ratingIP66
Primary standardEN 60947-5
Thread standardISO 228-1
MOQ1

Compatibility

G 1/2 male (ISO 228-1) pressure connection. Confirm range and reset type against application.

Standards

Approvals

Attached Documents