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TF61 / TF62 Perseus Temperature Switch

Brand: Pyropress Engineering Company Limited

This range of switches features a robust high quality housing with 1 or 2 sealed SPDT microswitches and has been designed for use in environments where explosive gases can be present (e.g. gas fields, oil rigs & chemical plants etc).

One of the benefits of the Perseus range is the separation of the flameproof and adjustment chambers allowing adjustment of the set point with power on and the switch in operation.
Features
  • Black anodised aluminium switchcase to IP67 standards
  • Internal adjustment scale
  • SIL 2 – IEC61508 prroven reliability
  • Single or dual microswitch option
  • Settings from -30° to 240° C. Standard length 3 metres; others available
  • ATEX/IECEx Flameproof version CE II2G Exd IIC T6 Ta = -50 to +74° C & T5 = -50° to 89° C (with or without resistors)
  • ATEX/IECEx/AEx Intrinsically safe CE II 1G Exia IIC T6 -50 to +78° C, T5 +93° C, T4 +128° C (without resistors)
  • ATEX/IECEx/AEx Intrinsically safe CE II 1G Exia IIC T5 -50 to +72° C & T4 -50 to 122° C (without resistors)
  • Wetted parts NACE MR-01-75 option

Specifications

Repeatability

  • ± 1.5 % of Range at Operating Temperature Up to 40° C

Set Point - Decreasing

  • -30° to 240° (-22° to 464° F)

Set Point - Increasing

  • -30° to 240° (-22° to 464° F)

BSP Connection

  • 1” BSPP
  • 1/2” BSPP
  • 3/4” BSPP
  • 3/8” BSPP

NPT Connection

  • 1” NPT
  • 1/2” NPT
  • 3/4” NPT

Enclosure, Body Material

  • Switchcase: Black Anodised Aluminum

Switch Type

  • 1 or 2 x SPDT

Microswitch Rating

  • 2 A at 250 Vac Inductive
  • 3 A at 30 Vdc Inductive
  • 5 A at 250 Vac or 30 Vdc Resistrive

Deadband

  • < 15° C

Calibration

  • Calibration Rate: 2° cycles/min

Capillary Length

  • 2 to 10 metres

Operating Temperature

  • -40° to 240° C (-40° to 464° F)

Electrical Connectors

  • 1/2” NPT Adaptor
  • M20 Leave Blank
  • M25 Adapter

Environmental Protection

  • IP67

Approvals & Certifications

  • SIL 2
  • ATEX/IECEx

NACE & NIST

  • NACE MR-0175

Storage Temperature

  • -40° to 85° C (-40° to 185° F)

Ambient Temperature

  • -40° to 85° C (-40° to 185° F)
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