ACI A/1K-3W-HT-I-4"-BB
SKU: CS6286862MPN: A/1K-3W-HT-I-4"-BBAlternate Part #: 128842
1,000 Ohm (Three Wires) RTD, High Temperature Immersion, 4”, NEMA 3R Enclosure

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Product Details
1,000 Ohm (Three Wires) RTD, High Temperature Immersion, 4”, NEMA 3R Enclosure
Product Configuration
| Length | 4” |
|---|---|
| Sensor | 1K-3W-HT (1,000 Ω, High Temp) |
| Enclosure | Aluminum, NEMA 3R |
| Thermowell Type | 2 Part Fabricated |
| Temperature Series | High Temperature Sensors |
Product Family Specifications
| Stability | \< 0.04 % at 1000 hours at 400ºC |
|---|---|
| Sensor Type | Platinum RTD |
| Number Wires | A/100-3W-HT-D-XX” and A/1K-3W-HT-D-xx”: Three (White / Two Red) Polarity Sensitive) |
| Sensor Curve | PTC (Positive Temperature Coefficient) |
| Thermal Drift | Temp. Spans \< 100ºF (38ºC): +/- 0.04%/ºF | Temp. Spans > 100ºF (38ºC): +/- 0.02% |
| Output Signals | Current: 4-20 mA (2-Wire Loop Powered) Voltage: 1-5 VDC or 2-10 VDC (3-Wires) |
| Probe Diameter | 0.250” (6.35mm) |
| Probe Material | 316 Stainless Steel |
| Agency Approvals | RoHS2, WEEE |
| Number Sensing Points | One |
| Connections | Wire Size | Screw Terminal Blocks (Non-Polarity Sensitive) | 16 AWG (1.31 mm2) to 26 AWG (0.129 mm2) |
| Maximum Load Resistance | (Terminal Voltage - 8.5 V) | 0.020 A |
| Operating Humidity Range | 10 to 90% RH, non-condensing |
| Min/Max Temperature Spans | Minimum Temp. Span: 50ºF (28ºC) Maximum Temp. Span: 800ºF (426ºC) |
| Storage Temperature Range | -40 to 85ºC (-40 to 185ºF) |
| Operating Temperature Range | -40 to 395ºC (-40 to 743ºF) |
| Sensor Tolerance | Accuracy | +/- 0.12% Class B | Class B Tolerance Formula: +/- ºC \= (0.30ºC + (0.005 * |t|)) Where |t| is the absolute value of temperature above or below 0ºC in Centigrade |
| Compression Fitting Material | 316 Stainless Steel |
| Lead Length | Conductor Size | 8’ (2.44 m) | 24 AWG (0.20 mm2) |
| Sensor Output @ 0ºC (32ºF) | A/100-3W-HT-D-xx”: 100 Ohms nominal A/1K-3W-HT-D-xx”: 1000 Ohms nominal |
| Terminal Block Torque Rating | 0.5 Nm nominal |
| Warm Up Time | Warm Up Drift | 10 Minutes | +/- 0.1% |
| Calibrated Accuracy | Linearity | Temp. Spans \< 500ºF (260ºC): +/- 0.2% | Temp. Spans > 500ºF (260ºC): +/- 0.5% |
| Lead Wire Insulation | Wire Rating | Fiberglass Braided Insulation with Mica Tape | 27% Nickel Plated Copper |
| Thermowell Material | Bore Diameter | 304 Series Stainless Steel | 0.260” |
| Din Standard | Temperature Coeffcient | DIN EN 60751 (IEC 751) | 3850 ppm / ºC |
| Self-Heating | Maximum Operating Current | 100 Ohm RTD: 7 mW/ºC (Still Air) | 5 mA | 1K Ohm RTD: 4 mW/°C (Still Air) | 3 mA |
| Transmitter Supply Voltage | Supply Current | +8.5 to 32 VDC (Reverse Polarity Protected) | 25 mA minimum 250 Ohm Load: +13.5 to 32 VDC 500 Ohm Load: +18.5 to 32 VDC |
| Thermowell Instrument Thread | Process Thread | ½” NPS (National Pipe Straight – Female) | ½” NPT (National Pipe Tapered – Male) |
Specifications
| SKU | CS6286862 |
|---|---|
| MPN | A/1K-3W-HT-I-4"-BB |
| Alternate Part # | 128842 |





