Hazardous Area Sensing Solution – Pepperl+Fuchs KCD2-SR-EX2 | KCD2 Series
Where This Product Is Used
The Pepperl+Fuchs KCD2-SR-EX2 switch amplifier is engineered for industrial environments where intrinsically safe signal conditioning is non-negotiable. Typical deployment scenarios include:
- Oil & Gas Upstream/Downstream: Interfacing NAMUR proximity sensors on wellhead equipment, pipeline valve position feedback, and separator level detection in Zone 1/Zone 2 classified areas.
- Chemical & Petrochemical Plants: Connecting Ex-rated inductive sensors to DCS/PLC I/O cards across reactor vessels, storage tanks, and distillation columns.
- Pharmaceutical Manufacturing: Monitoring door interlocks, agitator position, and fill-level switches in ATEX/IECEx-compliant production suites.
- Water & Wastewater Treatment: Pump run/fail feedback and valve limit-switch monitoring in wet, corrosive environments.
- Power Generation: Turbine and boiler auxiliary control loops requiring galvanic isolation between field instruments and control room equipment.
Technical Specifications
- Model: KCD2-SR-EX2
- Manufacturer: Pepperl+Fuchs (P+F)
- Series: KCD2
- Function: Switch Amplifier / NAMUR Sensor Interface
- Input: 2-channel NAMUR / EN 60947-5-6 compliant sensors or mechanical contacts
- Output: 2 × relay output (SPDT)
- Supply Voltage: 24 V DC (via Power Rail or terminals)
- Hazardous Area Classification: ATEX Zone 0, 1, 2 / IECEx / FM / CSA
- Safe Area Mounting: DIN rail (35 mm), K-System housing
- Isolation: Galvanic isolation between input, output, and power supply
- Enclosure: Slim-line K-System module, approx. 12.5 mm width
- Operating Temperature: –20 °C to +60 °C
- Approvals: ATEX, IECEx, cULus, FM
- Weight: ~100 g
Why Engineers Specify This Model
- Dual-channel design reduces panel space and wiring cost versus single-channel alternatives.
- Relay output provides direct compatibility with standard PLC digital input cards without additional signal conversion.
- Power Rail compatibility eliminates individual power wiring per module, simplifying marshalling cabinet design.
- Line fault detection (wire-break and short-circuit) enables predictive maintenance and reduces unplanned downtime.
- Universal approvals (ATEX + IECEx + FM) support global project deployment from a single part number.
- Proven KCD2 platform with decades of installed base in critical process industries ensures long-term spare parts availability.
Complete System Bill of Materials
For a fully functional intrinsically safe sensing loop, engineers typically specify:
- KCD2-SR-EX2 – Switch Amplifier (this module)
- NAMUR inductive proximity sensor (e.g., P+F NBB or NJ series, Ex-rated)
- K-System Power Rail (e.g., P+F F-LB-POWER or equivalent)
- K-System termination module
- IS barrier cable (blue-sheathed, per IEC 60079-14)
- DIN rail (35 mm × 7.5 mm, IEC 60715)
- PLC digital input module (24 VDC, sink/source compatible)
Compliance & Industry Standards
- ATEX Directive 2014/34/EU – II (1) G [Ex ia Ga] IIC
- IECEx – Ex ia IIC Ga
- EN 60947-5-6 (NAMUR interface standard)
- IEC 60079-11 (Intrinsic Safety)
- IEC 61508 / SIL assessment available
- FM / CSA approvals for North American installations
- RoHS compliant
Quality Assurance & Sourcing
Konmask.com sources the KCD2-SR-EX2 through verified industrial distribution channels. Every unit is:
- Inspected against Pepperl+Fuchs original packaging and label authenticity
- Cross-referenced against P+F serial number and date-code records
- Stored in ESD-safe, climate-controlled warehousing
- Shipped with original manufacturer documentation where available
We do not supply grey-market, refurbished, or counterfeit components. All products carry a 12-month warranty against manufacturing defects.
How to Source This Part
- In-stock orders: Add to cart and check out — ships within 1–3 business days.
- Bulk / project quantities: Contact support@konmask.com for volume pricing and lead-time confirmation.
- Urgent requirements: Call or WhatsApp +0086 19859288691 for same-day quotation.
- Datasheet / certifications: Available on request or downloadable from the Pepperl+Fuchs product portal.
Application-Specific FAQ
Q: Can the KCD2-SR-EX2 interface with mechanical contacts instead of NAMUR sensors?
A: Yes. The module accepts both NAMUR-type inductive sensors and volt-free mechanical contacts, making it versatile for mixed installations.
Q: Is the KCD2-SR-EX2 suitable for SIL 2 safety loops?
A: Pepperl+Fuchs provides SIL assessment documentation for the KCD2 series. Consult the P+F Functional Safety Manual and your SIL verification engineer for loop-level SIL determination.
Q: What is the maximum cable length to the field sensor?
A: Cable parameters (capacitance, inductance) must comply with the certified entity parameters stated in the EC-Type Examination Certificate. Typical installations support cable runs of several hundred metres depending on cable type.
Q: Can multiple KCD2-SR-EX2 modules share a single Power Rail?
A: Yes. The K-System Power Rail supports up to 40 modules per segment, significantly reducing wiring complexity in large marshalling cabinets.
Q: Does Konmask.com provide cross-reference support for competing brands?
A: Yes. Contact us with your current part number (e.g., MTL, R. Stahl, Turck) and we will identify the P+F equivalent and confirm compatibility.
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Contact: support@konmask.com | +0086 19859288691
