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WIKA · Temperature measurement · Family TAG

Gas-actuated temperature switch

Gas-actuated temperature switch with flameproof enclosure Ex d, suitable for safety-critical applications in chemical, petrochemical, oil and gas, power generation, and water/wastewater industries.
Range
-30…600 °C
Accuracy
≤ 0.5 % of span
Protection
IP66
CERoHSREACHEACKOSHAINMETROEx d IIC T6/T4 GbEx tb IIIC T85/T135 DbATEX II 2 GDIECEx Ex d IIC T6/T4 GbIECEx Ex tb IIIC T85/T135 DbEACEx
Price
On request
Depends on configuration
Request a quote
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Description

These high-quality temperature switches have been developed especially for safety-critical applications. The high quality of the products and manufacturing in accordance with ISO 9001 ensure reliable monitoring of your plant. In production, the switches are traced by quality assurance software at every step and subsequently are 100 % tested.

In order to ensure as flexible operation as possible, the temperature switches are fitted with micro switches, which enable the switching of an electrical load of up to AC 250 V, 20 A directly.

For lower switching power ratings, such as for PLC applications, argon gas-filled micro switches with gold-plated contacts can be selected as an option.

Special features

  • No power supply needed for switching of electrical loads
  • Setting ranges from -30 ... +70 °C up to 0 ... 600 °C
  • Robust switch enclosure from aluminium alloy, IP 66, NEMA 4X
  • 1 or 2 independent set points, SPDT or DPDT, high switching power up to AC 250 V, 20 A
  • Remote mounting with capillary ≤ 10 m
Identification
ModelTAG
SubcategoryGas-actuated temperature switch
Measuring range
Temperature ranges−30…+70 °C · +0…+100 °C · +0…+160 °C · +0…+250 °C · +0…+400 °C · +0…+600 °C
Accuracy
Accuracy class≤ 0.5 % of span
Safety integrity level (SIL)SIL 2 (option), per IEC 61508
Process conditions
Process connection
½ NPT male¾ NPT maleG ½ A maleG ¾ A male¾ NPT femaleM 20 x 1.5 femaleG ½ femaleG ¾ female½ NPT female
Process temperature−40…+600 °C
Electrical characteristics
Power supplyNone (no power supply needed)
Electrical connection½ NPT female
Materials
Probe materialstainless steel
Operating environment
Ambient temperature−40…+85 °C
IP ratingIP66
Weight2.6 kg
Certifications and approvals
Certifications
CERoHSREACHEACKOSHAINMETRO
Explosion protection
Ex d IIC T6/T4 GbEx tb IIIC T85/T135 DbATEX II 2 GDIECEx Ex d IIC T6/T4 GbIECEx Ex tb IIIC T85/T135 DbEACExKOSHAINMETRO
Additional details
Sensor typegas-actuated
Sensor classSAMA class III B
Probe length163 mm
Probe diameter12 mm
ThermowellNo
Datasheet languagesEN
Tables from datasheet
Contact versionElectrical rating (resistive load)
ACDC
UN1 x SPDT, silver250 V, 15 A24 V, 2 A, 125 V, 0.5 A, 220 V, 0.25 A
US1 x SPDT, silver, hermetically sealed, argon gas filling 1)250 V, 15 A24 V, 2 A, 220 V, 0.5 A
UO1 x SPDT, gold-plated, hermetically sealed, argon gas filling 1)125 V, 1 A24 V, 0.5 A
UG1 x SPDT, gold-plated125 V, 1 A24 V, 0.5 A
UR1 x SPDT, silver, adjustable dead band250 V, 20 A24 V, 2 A, 220 V, 0.5 A
DN2 x SPDT or 1 x DPDT, silver250 V, 15 A24 V, 2 A, 125 V, 0.5 A, 220 V, 0.25 A
DS2 x SPDT or 1 x DPDT, silver, hermetically sealed, argon gas filling 1)250 V, 15 A24 V, 2 A, 220 V, 0.5 A
DO2 x SPDT, or 1 x DPDT gold-plated, hermetically sealed, argon gas filling 1)125 V, 1 A24 V, 0.5 A
DG2 x SPDT or 1 x DPDT, gold-plated125 V, 1 A24 V, 0.5 A
Setting rangeWorking rangeProof temperatureFixed dead bandAdjustable dead band
in °Cin °Cin °C1 contact UN, US, UO, UG in °C2 contacts DN, DS, DO, DG in °C1 contact UR in °C
-30 ... +70-40 ...+70120≤ 4.5≤ 4.515 ... 35
0 ... 100-40 ...+100120≤ 4.5≤ 4.515 ... 35
0 ... 160-40 ...+160190≤ 5≤ 518 ... 35
0 ... 250-40 ...+250300≤ 6≤ 621 ... 45
0 ... 400-40 ...+400500≤ 10≤ 1033 ... 77
0 ... 600-40 ...+600600≤ 17≤ 1750 ... 115
LogoDescriptionCountry
EC declaration of conformity ■ Low voltage directive 2006/95/EC, EN 60730-1 ■ ATEX 1) directive 94/9/EC; annex III, IV II2GDEuropean Community
IECEx 1) per IEC 60079-0, IEC 60079-1, IEC 60079-26, IEC 60079-31 Ex d IIC T6/T4 2) Gb Ex tb IIIC T85/T135 2) DbIECEx member states
EAC (option) Hazardous areas (option)Eurasian Economic Community
KOSHA (option) Hazardous areasSouth Korea
INMETRO (option)Brazil
LogoDescription
SIL 2 rating (option) , per IEC 61508 Functional safety The electrical rating for DC applications is limited to 30V ...100 mA.