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Datasheet generated 2026-10-07
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Danfoss RT12 Thermostat -5 to 10 degC SPDT Auto Reset, 2 m capillary (017-508966)

Danfoss · Sensors & Instrumentation · Temperature Sensors · Denmark · danfoss.com
Part Number
017-508966  ·  HS 9032.10
Danfoss RT12 Thermostat -5 to 10 degC SPDT Auto Reset, 2 m capillary (017-508966)

Danfoss RT12 mechanical temperature switch (thermostat) with remote bulb sensor and single-pole double-throw (SPDT) contact, auto reset. Sensor setting range -5 to 10 degC (23 to 50 degF); enclosure IP66. For industrial and marine applications. Danfoss code number 017-508966; EAN 5702428519281.

Technical Specifications

BrandDanfoss
ModelRT12 thermostat
Code number017-508966
Sensor temperature setting range-5 to 10 degC (23 to 50 degF)
Differential1 to 3.5 degC (adjustable)
Contact functionSPDT (single-pole double-throw)
ResetAuto
Sensor typeremote bulb, sensor 9.5 x 210 mm
Capillary tube length2000 mm (2 m)
Max. sensor temperature65 degC (149 degF)
Chargeadsorption
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
StandardsEN 60947-4, EN 60947-5
ApprovalsCCC, CE, CMIM, EAC, GL, LVD, NKK, RMRS, RoHS, RoHS China, TYSK
EAN5702428519281
Part number017-508966
Net weight0.588 Kilogram
TypeRT12
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
Cap. tube length fraction [in]78 3/4 in
Capillary tube length [mm]2000 mm
CE markYes
Charge typeAdsorption
China RoHS complianceYes
Diff. @ Max. range setting[°C] [max]3 °C
Diff. @ Max. range setting[°C] [min]1 °C
Diff. @ Min. range setting[°C] [max]3.5 °C
Diff. @ Min. range setting[°C] [min]1 °C
Differential typeAdjustable
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
Max. sensor temperature [°C]65 °C
Max. sensor temperature [°F]149 °F
REACH Candidate List substancesLead (CAS no. 7439-92-1)
Reset functionAuto
Sensor size (Ø x L) [in]3/8 x 8 3/16 in
Sensor size (Ø x L) [mm]9.5 x 210 mm
Temperature range [°C] [max]10 °C
Temperature range [°C] [min]-5 °C
Temperature range [°F] [max]50 °F
Temperature range [°F] [min]23 °F

Properties

MaterialRemote bulb sensor (adsorption charge)
Temperature range-50 to +70 degC (ambient); sensor -5 to 10 degC (23 to 50 degF)
IP ratingIP66
Primary standardEN 60947-5
MOQ1

Compatibility

RT12 remote-bulb thermostat, 2 m capillary. Confirm setting range, reset type and capillary length against application.

Standards

Attached Documents