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GR7 Temperature Switch

Brand: Delta Mobrey

Features
  • Compact and rugged design
  • Hermetically sealed switch UL and CSA listed
  • ATEX - Flameproof CENELEC EEx d IIC option
  • ATEX - Intrinsically Safe ATEX Ex ia IIC option
  • Weatherproof IP66 / NEMA 4
  • Stainless steel body option NEMA 4X rating
  • Ranges available up to 350° C (660° F)
  • 316 Stainless steel capillary and bulb
  • Optional weatherproof, ATEX EEx e, ATEX Ex ia or ATEX - Flameproof EEx d IIC terminal enclosures
  • Easy field adjustable
  • Accuracy 1%

Specifications

Brand

Adjustment Type

  • Field Adjustable Set Point

Ambient Temperature Range

  • -40° to 80° C (-40° to 176° F)

Applications

  • Chemical Industry
  • OEM Applications
  • Oil & Gas Applications
  • Petrochemical

Approvals & Certifications

  • UKAS
  • ATEX Ex ia IIC, EEx d IIC
  • BSI Kitemark
  • CENELEC EEx d IIC
  • CSA Class I, Grade A, B, C, D, Class II Groups E, F, G, Div. 1 & 2
  • Ex II 2 G: II 1 GD
  • IEC Ex
  • ISO 9001
  • NEC 500
  • UL Class I, Grade A, B, C, D, Class II Groups E, F, G Div. 1 & 2

Bulb Material

  • Sensing Bulb: 316 Stainless Steel

Cable Entry

  • 1/2”-14 NPT
  • M20 x 1.5

Cable Length

  • Factory Sealed Flying Lead: 18” (0.45 Meter) with 1/2”-14 NPT External Conduit

Capillary Length

  • 6 feet (1.82 metres)

Capillary Material

  • 316 Stainless Steel

Conduit Connection

  • 1/2”-14 Male NPT

Electrical - Free Leads

  • Factory Sealed Flying Leads: 18 AWG, 1.19 mm²
  • Terminal Enclosure: 14 AWG, 2.5 mm² Non-Pinching, Clamped

Electrical Contacts

  • Gold Alloy
  • Silver
  • Silver Contact with Gold Flash

Electrical Rating

  • IEC 947-5-1 / EN 60947-5-1: 0.22 / 0.1 A at 125/250 Vdc
  • IEC 947-5-1 / EN 60947-5-1: 0.3 A at 120 Vac
  • IEC 947-5-1 / EN 60947-5-1: 0.6 / 0.3 A at 120/240 Vac
  • UL & CSA: 1 A at 125 Vac
  • UL & CSA: 1 A at 30 Vdc
  • UL & CSA: 11 A at 110/250 Vac
  • UL & CSA: 2 A at 30 Vdc
  • UL & CSA: 5 A at 250 Vac
  • UL & CSA: 5/0.5 A at 30/125 Vdc

Enclosure Finish

  • Epoxy Paint for Aluminum Enclosure

Enclosure, Body Material

  • Aluminum
  • Weatherproof & Exn: Austenitic Stainless Steel

Environmental Protection

  • Flameproof
  • Intrinsically Safe
  • IP65
  • IP66
  • NEMA 4
  • NEMA 4X
  • NEMA 7
  • NEMA 9
  • Weatherproof

Insertion 'U' Length

  • 7.5” (190 mm)

Length

  • Bulb: 2.95” (75 mm)

Materials of Construction

  • Thermal System with Capillary: 300 Series Stainless Steel

Mounting

  • 2” Pipe Mounting Bracket
  • Direct Mounting, 1/2” NPT External to Rigid Stem

Name Plate, Tag Material

  • Stainless Steel

NPT Connection

  • 1/2”-14 Male NPT

Operating Pressure

  • Maximum 140 bar (2,000 psi)

Operating Temperature

  • 0° to 360° C (32° to 680° F) - Max.

Repeatability

  • Set Point Repeatability: ± 1 % of Span at 20° C (68° F) Ambient

Sensor, Probe Length

  • Probe: 9” (228 mm)

Sensor, Probe Material

  • 316 Stainless Steel

Service

  • Oxygen Service

Stem Length

  • Rigid Stem: 8.5” (216 mm)
  • Semi-Rigid Stem: 10 to 20” (250 to 500 mm)

Switch Type

  • DPDT Hermetically Sealed & Snap-Action Microswitch
  • SPDT Hermetically Sealed & Snap-Action Microswitch

Thermowell

  • 316 Stainless Steel

Voltage

  • Impulse Withstand Voltage Across Contacts: 500 V
  • Impulse Withstand Voltage Across Contacts: 800 V
  • Insulation Voltage for Flying Lead: 600 V
  • Insulation Voltage: 125 V
  • Insulation Voltage: 250 V
  • Withstand Voltage: 1.5 kV between Live Parts & Ground

  • Oil & Gas
  • Chemical
  • Petrochemical
  • OEM

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