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Datasheet generated 2026-10-07
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Danfoss RT1A Pressure Switch -0.8 to 5 bar SPDT Auto Reset (017-501966)

Danfoss · Sensors & Instrumentation · Pressure Sensors · Denmark · danfoss.com
Part Number
017-501966  ·  HS 9032.20
Danfoss RT1A Pressure Switch -0.8 to 5 bar SPDT Auto Reset (017-501966)

Danfoss RT1A mechanical pressure switch with bellows sensing element, single-pole double-throw (SPDT) contact and auto reset. Regulating range -0.8 to 5 bar; M 12 x 1.5 male (ISO 8434-1, cutting-ring for 6 mm tube) pressure connection; enclosure IP66. For industrial and marine applications. Danfoss code number 017-501966; EAN 5702428517560.

Technical Specifications

BrandDanfoss
ModelRT1A pressure switch
Code number017-501966
Regulating range (Pe)-0.8 to 5 bar
Maximum working pressure22 bar (320 psig)
Contact functionSPDT (single-pole double-throw)
ResetAuto
Differential0.5 to 1.6 bar (adjustable)
Pressure sensing elementbellows
Pressure connectionM 12 x 1.5 male (ISO 8434-1, cutting-ring for 6 mm tube)
EnclosureIP66
Ambient temperature range-50 to +70 degC (-58 to +158 degF)
Cable entry2 x Pg 13.5
Contact ratingAC15=3 A, 400 V; AC1=10 A, 400 V; AC3=4 A, 400 V; DC13=12 W, 220 V; LR=28 A, 400 V
Burst pressure88 bar
StandardsEN 60947-4, EN 60947-5
ApprovalsCCC, CE, EAC, LLC CDC EURO-TYSK, LVD, NKK, RINA, RMRS, RoHS, RoHS China, TYSK
EAN5702428517560
Part number017-501966
Net weight0.77 Kilogram
TypeRT1A
Product groupSwitches and thermostats
Ambient temperature range [°C] [max]70 °C
Ambient temperature range [°C] [min]-50 °C
Ambient temperature range [°F] [max]158 °F
Ambient temperature range [°F] [min]-58 °F
ApprovalCCC
Burst pressure [bar]88 bar
CE markYes
China RoHS complianceYes
Differential [bar] [max]1.6 bar
Differential [bar] [min]0.5 bar
Differential [psi] [max]23.2 psi
Differential [psi] [min]7.3 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 complianceYes
In scope of WEEEYes
Max. test pressure [bar] Pe25 bar
Max. test pressure [psig]363 psig
Max. Working Pressure [bar]22 bar
Max. Working Pressure [psig]320 psig
Pressure connection notesCutting ring 6mm tube
Pressure connection size12 x 1.5
Pressure connection standardISO 8434-1
Pressure connection typeM
Pressure Male/FemaleMale
REACH Candidate List substancesLead (CAS no. 7439-92-1)
RefrigerantsR11
Regulation range23.6 inHg - 72.5 psig
Regulation range [bar] Pe [max]5 bar
Regulation range [bar] Pe [min]-0.8 bar
Reset functionAuto
UL approved refrigerantsR11

Properties

MaterialBellows sensing element
Pressure rating22 bar (320 psig)
Temperature range-50 to +70 degC (-58 to +158 degF)
IP ratingIP66
Primary standardEN 60947-5
Thread standardISO 8434-1
MOQ1

Compatibility

M 12 x 1.5 male (ISO 8434-1, cutting-ring for 6 mm tube) pressure connection. Confirm regulating range and reset type against application.

Standards

Attached Documents