Chem-Gard 200 RTD Cable 40551 / 40552 Alternative — TEBAOFLEX Specification Review
Comparing Chem-Gard 200 RTD cable reference 40551 or 40552? This TEBAOFLEX specification-review page separates the original 18 AWG three- and four-conductor RTD signal constructions and the shield, temperature, voltage and gland dimensions to verify for an alternative quote. Listed values identify the original Amphenol TPC products, not TEBAOFLEX-tested ratings.
- Original reference 40551: 18 AWG × 3 conductors for a three-wire RTD lead.
- Original reference 40552: 18 AWG × 4 conductors for a four-wire RTD lead.
- Original-family 300 V and 200°C maximum conductor-temperature ratings.
- Nickel-plated stranded copper, fluoropolymer insulation and jacket, plus braided overall shield in the source construction.
- Check probe wiring, screen termination, route chemistry and actual gland diameter before selection.
Send the probe/terminal drawing, required core count, temperature profile, cable length and target outer diameter with the RFQ.
Identify the correct Chem-Gard 200 RTD reference before quoting
Chem-Gard 200 RTD 40551 and 40552 are original Amphenol TPC cable references used for resistance temperature detector wiring. Their difference is not just a catalogue digit: 40551 identifies an 18 AWG three-conductor arrangement, while 40552 identifies an 18 AWG four-conductor arrangement. The selected RTD connection method must match the probe and input module. This TEBAOFLEX page gathers the reference data and helps an engineer request a cable design against the right target without presenting original-brand values as a tested TEBAOFLEX specification.
The source describes a nickel-plated copper conductor system, fluoropolymer insulation and jacket, and an overall metallic braid and drain path to manage interference on a low-level instrument signal. For purchase, the critical questions are the actual cable route, chemical exposure, terminal connections, shield bonding plan and permitted bend. The reference’s 200°C figure is a maximum conductor temperature; it should not be used alone to set a probe, connector or finished assembly temperature rating.
- Choose the conductor count: confirm three-wire or four-wire RTD wiring from the instrument drawing.
- Check the interface: match shield/drain termination and whether the input requires isolated or bonded screening.
- Check fit: compare the original nominal outside diameter with the actual cable entry and gland.
- Request evidence: ask for the specific TEBAOFLEX drawing, electrical test data and material declaration for the quoted construction.
Browse the high-temperature cable range when the application needs a different temperature or construction route.
Construction
The original Chem-Gard 200 RTD reference uses finely stranded nickel-plated copper conductors, fluoropolymer core insulation, a spiral-wrapped skived PTFE tape, a nickel-plated copper overall braid with drain wire, and a fluoropolymer outer jacket. The manufacturer states 90% braid coverage. A TEBAOFLEX alternative must be drawn and verified as its own construction before any layer count, braid coverage or material grade is promised.
| Original reference layer | Selection role |
|---|---|
| 18 AWG, 41/34 nickel-plated copper conductor | Instrument lead size and termination compatibility |
| Fluoropolymer core insulation | Electrical isolation in a high-temperature chemical-exposure route |
| Skived PTFE wrap and 90%-coverage nickel-plated copper braid | Overall signal screening; shielding performance depends on bonding and installation |
| Drain wire and fluoropolymer jacket | Screen termination and external chemical/mechanical protection |
The original color-code chart gives red/red/white for three cores and red/red/white/white for four. Confirm TEBAOFLEX color coding on the quoted drawing.
Applications
The source classifies this as RTD control and instrumentation cable for high-temperature and chemical-exposure conditions. The three-core 40551 reference suits a three-wire RTD circuit; the four-core 40552 reference suits a four-wire circuit when the actual probe and instrument use that connection. This page is for the interconnecting cable, not the RTD sensing element or a finished probe assembly.
- Specify the probe element wiring, instrument input and polarity/color code before selecting the core count.
- Describe oils, coolants, solvents or acids by concentration and exposure duration; a generic chemical-resistance label cannot replace a compatibility check.
- Provide static and moving bend conditions, route length, ambient temperature and screen-earth termination.
- Check the full assembly, gland and connector temperature limits independently of the cable's maximum conductor-temperature reference.
Specifications
These are original Amphenol TPC reference values for matching an existing Chem-Gard 200 RTD cable. They do not establish TEBAOFLEX availability, finished dimensions or performance. Dimensions are nominal; final cable and gland selection require a TEBAOFLEX drawing.
| Original model + configuration | Original part no. | Nominal OD | Nominal weight | Original conductor color code |
|---|---|---|---|---|
| Chem-Gard 200 RTD 40551 — 18 AWG × 3, 300 V, 200°C max conductor | 40551 | 0.180 in (4.572 mm) | 40 lb / 1,000 ft | Red / red / white |
| Chem-Gard 200 RTD 40552 — 18 AWG × 4, 300 V, 200°C max conductor | 40552 | 0.195 in (4.953 mm) | 45 lb / 1,000 ft | Red / red / white / white |
Original-family ratings and selection limits
| Original reference property | Source value |
|---|---|
| Nominal voltage | 300 V |
| Maximum conductor temperature | 200°C (392°F) |
| Cold-temperature rating | −30°C |
| Conductor stranding | 41/34, 18 AWG nickel-plated copper |
| Overall braid coverage | 90%, original source statement |
| Nominal jacket wall | 0.015 in in manufacturer's current online table |
| Minimum bend radius, static | 12 × finished cable OD |
| Minimum bend radius, dynamic | 15 × finished cable OD |
The manufacturer's online insulation-wall entry is not used here because it conflicts with the listed completed-cable diameters; request a current drawing before dimensioning core insulation.
Standards
The current original-product page describes Chem-Gard 200 RTD as RoHS compliant and lists a 300 V rating. The supplied PDF gives the same 300 V reference rating but does not provide a TEBAOFLEX product certificate. For a TEBAOFLEX quote, request documents for the actual material and construction selected.
| Document or test item | Original reference status | Quotation requirement |
|---|---|---|
| RoHS | Amphenol TPC original product page states compliant | Material declaration for the quoted TEBAOFLEX cable |
| 300 V electrical rating | Original PDF and product page rating | Voltage test method and result for the quoted cable |
| Thermal and chemical suitability | Original product description and 200°C maximum conductor rating | Specified exposure profile and matching TEBAOFLEX test evidence |
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Send the required services, cable length, mechanical duty, environment, termination and quantity. Our team will review the application before quoting.
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- Attach a specification, drawing or data sheet when available.