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 Application pipe freeze protection and temperature maintenance Area of Use hazardous area Sensor type surface 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/Resetting inside the enclosure Ambient operating range -40°C to +70°C Electrical Supply voltage up to 400 V a.c. Terminals 4 mm² spring type Switching type single pole change over (SPDT) Switching capacity 16 A Switching hysteresis ≤ 2.5% of range (thermostat)
≤ 7.5% of range (limiter)Enclosure Material glass fibre reinforced polymer Ingress protection IP 65 Mounting option on pipe: Support brackets SB-120 and SB-125
surface: using 4 x M6 fixing holes at 204 mm x 82 mm centresMounting holes 4 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 Type fluid filled capillary 3 m long Material stainless 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 DbIECEX: 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 Width 220 mm Height 120 mm (excluding glands) Depth 90 mm Weight 2 kg - DOWNLOAD DOCUMENTS