Genuine PEPPERL+FUCHS KFD2STC41 Transmitter Power Supply | KFD2 Series HART Isolator – Verified Source
The KFD2STC41 is a high-precision transmitter power supply and signal conditioner from Pepperl+Fuchs’ industry-leading KFD2 Series. Engineered for hazardous-area process automation, it provides galvanically isolated 4–20 mA loop power and HART signal transparency between field instruments and control systems. At Konmask.com, every unit is sourced through verified industrial channels and inspected before dispatch — giving procurement engineers the confidence to specify with certainty.
Technical Specifications
- Part Number: KFD2STC41
- Manufacturer: Pepperl+Fuchs GmbH
- Product Series: KFD2 — Isolated Barrier / Transmitter Power Supply
- Function: 2-wire transmitter power supply with HART signal pass-through
- Input (Field Side): 4–20 mA, HART-compatible, Ex ia IIC / IIB
- Output (Control Side): 4–20 mA, galvanically isolated
- Supply Voltage: 20–35 V DC (KFD2 power rail or external)
- Power Consumption: ≤ 1.0 W (typical)
- Isolation: 500 V AC galvanic isolation (field / supply / output)
- HART Transparency: Full HART protocol pass-through (250 Ω internal)
- Accuracy: ≤ 0.1% of full scale
- Ambient Temperature: −20 °C to +60 °C
- Mounting: DIN rail (35 mm), 12.5 mm width
- Housing: Polycarbonate, IP20
- Approvals: ATEX, IECEx, UL, cUL, FM
- Weight: 790 g (packaged)
- Compliance: IEC 60079-11, EN 50020
Our 4-Step Quality Verification Process
- Source Authentication: Units are procured exclusively from authorized Pepperl+Fuchs distributors and verified industrial surplus channels. Supplier credentials are reviewed before each purchase.
- Physical Inspection: Every KFD2STC41 undergoes visual inspection — label integrity, housing condition, connector pins, and date code verification against Pepperl+Fuchs production records.
- Functional Power-On Test: Each unit is bench-tested for correct 4–20 mA loop operation and HART signal transparency before packaging.
- Secure Packaging & Documentation: Units ship in anti-static ESD bags with foam-lined cartons. Certificate of conformance, test report, and original datasheet are included upon request.
Key Features & Benefits
- True Galvanic Isolation: 500 V AC isolation eliminates ground loops and protects control system inputs from field-side faults
- Full HART Pass-Through: Supports HART 5/6/7 multidrop and point-to-point configurations without signal degradation
- Ultra-Slim 12.5 mm Profile: High channel density in marshalling cabinets — critical for brownfield retrofit projects with limited DIN rail space
- Wide Supply Range: 20–35 V DC input accepts both standard 24 V DC and KFD2 power rail without additional regulators
- Plug-In Terminal Blocks: Pre-wired terminals can be unplugged for module swap without rewiring — minimizing maintenance downtime
- ATEX / IECEx Certified: Intrinsically safe field circuit (Ex ia) approved for Zone 0/1/2 and Division 1/2 hazardous areas
- High Accuracy: ≤ 0.1% FS ensures measurement integrity for critical process loops
Typical Applications
- Oil & Gas: Wellhead pressure/temperature transmitter interfaces in Zone 1 classified areas
- Chemical & Petrochemical: Reactor loop signal conditioning with intrinsic safety barriers for SIL-rated loops
- Power Generation: Boiler and turbine instrumentation signal isolation to DCS/PLC inputs
- Pharmaceutical: GMP process loop isolation in classified clean-room environments
- Water & Wastewater: Remote pump station transmitter power supply with HART asset management
- Pulp & Paper: High-humidity mill environments requiring robust galvanic isolation
Compatible System Components
- Power Supply: Pepperl+Fuchs KFD2-EB2 (KFD2 power rail bus)
- Segment Coupler: KFD2-HMM-16 HART multiplexer for asset management integration
- DCS/PLC Inputs: Compatible with all standard 4–20 mA AI cards (Siemens, ABB, Honeywell, Emerson)
- Field Instruments: Any 2-wire 4–20 mA HART transmitter (pressure, temperature, level, flow)
- Mounting Accessories: Standard 35 mm DIN rail; Pepperl+Fuchs KFD2 series end brackets
Global Sourcing & Shipping Capabilities
- Stock Status: In-stock units ship within 2 business days from our warehouse
- Lead Time (Ex-Stock): 7–14 business days for sourced orders
- Carriers: DHL Express, FedEx International Priority, UPS Worldwide
- Export Documentation: Commercial invoice, packing list, certificate of origin, and HS code declaration included
- Destinations: Worldwide — including EU, Middle East, Southeast Asia, Americas, and Africa
- MOQ: 1 unit; volume pricing available for 5+ units
Certifications & Compliance Statement
The PEPPERL+FUCHS KFD2STC41 carries the following certifications applicable to hazardous-area installations:
- ATEX: II (1) G [Ex ia Ga] IIC / II (1) D [Ex ia Da] IIIC — per EN 60079-11
- IECEx: Ex ia IIC Ga / Ex ia IIIC Da
- UL / cUL: Listed for Class I, Division 1, Groups A–D (North America)
- FM: Factory Mutual approved for Class I, Division 1
- RoHS: Compliant per EU Directive 2011/65/EU
Konmask.com does not modify, repair, or re-label any units. All certifications remain intact as issued by Pepperl+Fuchs GmbH.
How to Order
- Confirm Part Number: Verify KFD2STC41 against your instrument loop drawing and hazardous-area classification schedule
- Request a Quote: Email support@konmask.com with quantity, required delivery date, and destination country
- Receive Pro-Forma Invoice: We issue PI within 4 business hours with unit price, shipping cost, and lead time
- Payment: T/T bank transfer, PayPal, or credit card accepted; Net 30 for qualified accounts
- Dispatch & Tracking: Shipment confirmation with AWB number sent within 24 hours of payment clearance
- After-Sales Support: Technical assistance via email or WhatsApp throughout installation and commissioning
Authenticity & Trust FAQ
Q: How do I know the KFD2STC41 I receive is genuine Pepperl+Fuchs?
A: Every unit is inspected against Pepperl+Fuchs label specifications and date codes. We provide the original manufacturer datasheet and can supply a certificate of conformance. If you have any doubt after receipt, we offer a full refund or replacement within 30 days.
Q: Are these new or refurbished units?
A: We clearly state condition at time of quotation — new OEM stock, factory-sealed, or tested surplus. We never sell refurbished units as new. Condition is always disclosed upfront.
Q: Can you provide an ATEX certificate copy for our safety file?
A: Yes. The Pepperl+Fuchs ATEX/IECEx certificate is available as a PDF download upon request at no charge.
Q: What if the unit is DOA (dead on arrival)?
A: We replace DOA units within 7 business days at no cost, including return shipping. Our 12-month Konmask warranty covers manufacturing defects from date of dispatch.
Q: Do you offer technical support for loop configuration?
A: Yes — our engineering team can advise on loop wiring, HART multiplexer integration, and barrier selection for your specific hazardous-area classification.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
