Pepperl+Fuchs KCD2-SCD-Ex1.ES SIL 3 Certified Safety Barrier with Bidirectional HART Communication and 650 Ω Load Capacity

Name: Pepperl+Fuchs KCD2-SCD-Ex1.ES SIL 3 Certified Safety Barrier with Bidirectional HART Communication and 650 Ω Load Capacity
Brand: Shenzhen Hengyo Power Technology Co., Limited
SKU: KCD2-SCD-Ex1.ES
Availability: InStock

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Pepperl+Fuchs KCD2-SCD-Ex1.ES SIL 3 Certified Safety Barrier with Bidirectional HART Communication and 650 Ω Load Capacity

Large Image : Pepperl+Fuchs KCD2-SCD-Ex1.ES SIL 3 Certified Safety Barrier with Bidirectional HART Communication and 650 Ω Load Capacity

Product Details:

Place of Origin:	Singapore
Brand Name:	Pepperl Fuchs
Certification:	CE SIL3 UL
Model Number:	KCD2-SCD-Ex1.ES

Payment & Shipping Terms:

Minimum Order Quantity:	1
Price:	negotiable
Packaging Details:	Pepperl Fuchs original package
Delivery Time:	In stock
Payment Terms:	T/T,Western Union
Supply Ability:	500pcs/month

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Pepperl+Fuchs KCD2-SCD-Ex1.ES SIL 3 Certified Safety Barrier with Bidirectional HART Communication and 650 Ω Load Capacity

Description

Condition:

P+F Original Brand New

Warranty:

One Year

Shipping Way:

DHL FedEx

Application:

Used For Intrinsic Safety Applications

Highlight:

Pepperl Fuchs SMART Current Driver

1-channel isolated safety barrier

intrinsic safety barrier with warranty

Pepperl+Fuchs KCD2-SCD-Ex1.ES 24VDC Power Rail DIN Rail Mount Safety Barrier

Product Overview

The KCD2-SCD-Ex1.ES is a high-performance 1-channel isolated barrier from Pepperl+Fuchs' K-System, specifically engineered to drive SMART I/P converters, electrical valves, and positioners located in hazardous areas. This signal conditioner repeats the 4...20 mA input signal from a control system to field devices while providing complete galvanic isolation.

With a compact 12.5 mm width and 24 V DC power supply (via Power Rail or terminals), the KCD2-SCD-Ex1.ES supports bidirectional HART communication for intelligent field device configuration and diagnostics.

Certified for SIL 3 (highest level for signal conditioners) according to IEC/EN 61508 and approved for hazardous area installation with [Ex ia Ga] IIC, [Ex ia Da] IIIC, and [Ex ia Ma] I certifications, this device delivers reliable, safety-rated performance for demanding explosive atmosphere applications.

Model Number Decoding

Code Segment	Meaning
KCD2	K-System, 2-channel housing width (12.5 mm)
SCD	SMART Current Driver – analog output signal conditioner
Ex1	1-channel with intrinsic safety (Ex) certification
.ES	Specific variant with enhanced specifications – SIL 3 rating

The ".ES" suffix denotes the enhanced safety version with SIL 3 certification, distinguishing it from standard models.

Key Features & Benefits

SIL 3 Certified – Highest Safety Rating: Safety Integrity Level 3 according to IEC/EN 61508 – suitable for the most demanding safety instrumented systems (SIS)
Intrinsic Safety Certification: Certified with [Ex ia Ga] IIC for Zone 0, 1, and 2 hazardous areas – gas groups IIC (hydrogen, acetylene), IIB, and IIA. Also certified for dust (IIIC) and mining (Ma) applications
High Load Drive Capability: Drives loads up to 650 Ω with ≥13 V at 20 mA, providing sufficient power for demanding positioners and long cable runs
Bidirectional HART Communication: Digital signals can be superimposed on analog values at the field side or control side and transferred bi-directionally – supports full HART configuration and diagnostics
Integrated Test Sockets: Built-in test sockets for HART communicator connection are integrated into the device terminals – no need for external connection boxes
Line Fault Detection (LFD): An open or short field circuit presents high impedance (>100 kΩ) or low impedance (<50 Ω) to the control side, allowing alarm conditions to be monitored by the control system
Fault Indication: Faults are signaled by LEDs and a separate collective error message output, simplifying troubleshooting
Compact 12.5 mm Width: Ultra-slim design (housing type A2) maximizes DIN rail density in crowded control cabinets
Wide Operating Temperature: Functions reliably from -40°C to +70°C, suitable for harsh industrial environments
DNV Marine Approved: Certified for marine and offshore applications – suitable for shipbuilding installations

Technical Specifications

General Specifications

Parameter	Value
Manufacturer	Pepperl+Fuchs SE
Product Type	SMART Current Driver / Signal Conditioner
Model	KCD2-SCD-Ex1.ES
Signal Type	Analog output
Channels	1
Housing Width	12.5 mm (type A2)

Functional Safety

Parameter	Value
Safety Integrity Level (SIL)	SIL 3 acc. to IEC/EN 61508

Supply

Parameter	Value
Connection	Power Rail or terminals 9+, 10-
Rated Voltage	19 ... 30 V DC
Ripple	≤ 10 %
Rated Current	≤ 33 mA at 24 V
Power Dissipation	≤ 700 mW at 20 mA and 500 Ω load
Power Consumption	≤ 800 mW

Input (Control Side)

Parameter	Value
Connection	terminals 5-, 6+
Input Signal	4 ... 20 mA, limited to approx. 25 mA
Input Voltage	open loop voltage of the control system < 30 V, in line fault mode < 60 V
Voltage Drop	approx. 6 V at 20 mA
Input Resistance	> 100 kΩ, with field wiring open or < 50 Ω

Output (Field Side)

Parameter	Value
Connection	terminals 1+, 2-
Voltage	≥ 13 V at 20 mA
Current	4 ... 20 mA
Load	100 ... 650 Ω
Ripple	20 mV rms
Line Fault Detection	field wiring open or < 50 Ω and test current < 2 mA

Applications

The KCD2-SCD-Ex1.ES is specifically designed for analog output and SMART field device driving in hazardous area installations:

Industry	Application
Oil & Gas	Driving I/P converters for pneumatic valve positioning on offshore platforms, refineries, and pipelines in Zone 0/1 areas
Chemical Processing	Controlling SMART valve positioners and electrical actuators in explosive atmospheres
Pharmaceutical	SIL 3 certified current driver for safety-related batch control with solvent handling equipment
Power Generation	Driving turbine governor valves, boiler feedwater control valves with Ex ia protection
Mining	Certified [Ex ia Ma] I for underground mining equipment requiring intrinsic safety
Marine & Offshore	DNV-approved for shipbuilding – marine control systems with hazardous area valve actuation

Typical Field Devices Connected

SMART I/P (current-to-pressure) converters
SMART valve positioners with HART communication
Electrical actuators in hazardous areas
Solenoid valves in explosive atmospheres

Compliance & Certifications

Certification	Status	Details
SIL 3	Certified	IEC/EN 61508 – Highest rating for signal conditioners
ATEX (Ex ia)	Certified	CESI 20 ATEX 016 X – II (1)G [Ex ia Ga] IIC
ATEX (Ex ec)	Certified	CESI 20 ATEX 017 X – II 3G Ex ec IIC T4 Gc
IECEx	Certified	IECEx CES 20.0009X – [Ex ia Ga] IIC, Ex ec IIC T4 Gc
DNV Marine	Approved	TAA00001WX – Marine and offshore applications
UL/cULus	Listed	E106378, Control Drawing 116-0471
CE	Compliant	EMC Directive 2014/30/EU
NAMUR	Compliant	NE 21:2017
RoHS	Compliant	Lead-free

Overall Rating

5.0

Based on 50 reviews for this supplier

Rating Snapshot

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5 stars

100%

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1 stars

All Reviews

Soh

Singapore Dec 19.2019

Helpful (45)

The goods arrive very fast, so down time was shorten. Ms Michelle was very helpful in answering all my questions and concerns. She is also very efficient in getting back to me with all the answers I needed. Overall 5 STARS.