RAYCHEM T-M-20-S/EX thermostat with safety limiter, hazardous area

nVent Raychem T-M-20-S-EX thermostat controller with limiter

RAYCHEM T-M-20-S/EX thermostat with safety limiter, hazardous area


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Product details

nVent RAYCHEM T-M-20-S-EX mechanical thermostat and safety limiter controller provides accurate control and temperature limit of heating cables within hazardous areas for freeze protection and temperature maintenance applications. The safety limiter prevents the heating cable system exceeding a preset maximum temperature should the control function fail to operate or an unsafe process temperature occur. Ex approved power cable glands and plugs and the entries offer the possibility for a variety of connections such as connecting M25 and M20 glands for direct heating cable entry or alarm output. The thermostat with limiter is available in 3 temperature ranges: +0°C +120°C, +0°C +200°C and +50°C +300°C


Features & Benefits

  • Precise control: Line sensing with limiter
  • Adjustable ranges and temperature set points: 0°C to +120°C,  0°C  to +200°C and  +50°C to +300°C
  • Direct switching:  16 A, 400V a.c. single pole change over (SPDT)
  • Simple to design: direct connection of heating cables possible
  • Lightweight: Suitable for pipe mounted nVent RAYCHEM supports
  • TECHNICAL DETAILS
    SPECIFICATIONS
    Applicationpipe freeze protection and temperature maintenance
    Area of Usehazardous area
    Sensor typesurface temperature sensing
    Temperature range (thermostat)0°C to +120°C (T-M-20-S/+0+120C/EX)
    0°C to +200°C (T-M-20-S/+0+200C/EX)
    +50°C to 300°C (T-M-20-S/+50+300C/EX)
    Temperature range (limiter)
    0°C to +120°C (T-M-20-S/+0+120C/EX)
    0°C to +200°C (T-M-20-S/+0+200C/EX)
    +50°C to 300°C (T-M-20-S/+50+300C/EX)
    Setting/Resettinginside the enclosure
    Ambient operating range-40°C to +70°C
    Electrical
    Supply voltageup to 400 V a.c. 
    Terminals4 mm² spring type 
    Switching typesingle pole change over (SPDT)
    Switching capacity16 A
    Switching hysteresis≤ 2.5% of range (thermostat)
    ≤ 7.5% of range (limiter)
    Enclosure
    Materialglass fibre reinforced polymer
    Ingress protectionIP 65
    Mounting optionon pipe: Support brackets SB-120 and SB-125
    surface: using 4 x M6 fixing holes at 204 mm x 82 mm centres
    Mounting holes4 x M6
    Entries
    1 x M25: power cable (⌀ 8 - 17 mm)
    1 x M25: heating cable
    2 x M20: heating cable (single core cable)
    2 x M20: capillary sensors (fitted)
    Storage temperature-40°C to +50°C
    Sensor
    T-M-20-S variant+0+120C+0+200C+50+300C
    Typefluid filled capillary 3 m long
    Materialstainless steel
    Thermostat sensor⌀6 mm x 90 mm⌀6 mm x 72 mm⌀4 mm135 mm
    Limiter sensor⌀6 mm x 58 mm⌀4 mm x 78 mm⌀4 mm x78 mm
    Temperature exposure-40°C to  +138°C-40°C to +230°C
    -40°C to +345°C
  • APPROVALS
    APPROVALS

    ATEX: EPS 13ATEX1510
    Ex II 2G Ex d e IIC T4/T5/T6 Gb
    Ex II 2D Ex tb IIIC T85°C/T100°C/T130°C Db

    IECEX: BAS 13.0071 
    Ex II 2(1) G II 2D
    Ex e ia mb (Ga) IIC T5 GB
    Ex tb IIIC T100°C Db IP66
    Ta -40°C to +60°C Supply = 99-121V (ETS-05-x1-x) or 195-230V (ETS-05-x2-x)

    EAC (T-M-20-S/+0+120C/Ex)
    RU C-BE.ИM43.B.01764
    1Ex d e IIC T6/T5/T4 Gb
    Ex tb IIIC T85°C/T100°C/T130°C Db IP65
    Ta -60°C ...+70°C
    ООО "ТexИмпорт"

    EAC 
    RU C-BE.ИM43.B.01764
    1Ex d e IIC T6/T5/T4 Gb
    Ex tb IIIC T85°C/T100°C/T130°C Db IP65
    Ta -40°C ...+70°C IP65
    ООО "ТexИмпорт"
  • DIMENSIONS
    DIMENSIONS AND WEIGHT
    Width220 mm
    Height120 mm (excluding glands)
    Depth90 mm
    Weight2 kg

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