Pepperl+Fuchs SIL2 Certified SMART Current Driver with 650 Ω Load Capacity and Push-in Connection Technology for HART Communication

The KCD2-SCD-Ex1.SP is a 1-channel SMART Current Driver from Pepperl+Fuchs, designed specifically for intrinsic safety (Ex ia) applications. This isolated barrier serves as the industry standard for driving SMART I/P converters, electrical valves, and positioners located in hazardous areas.

Featuring a slim 12.5 mm housing with push-in connection technology, it significantly reduces cabinet space and installation time. Certified according to SIL 2 (IEC/EN 61508) and ATEX/IECEx, this device ensures reliable 4...20 mA signal transmission even in extreme ambient conditions (-40 °C to 70 °C).

• SMART Communication Ready: Supports HART-IP and valve positioners with bidirectional digital signal transmission superimposed on analog values
• High Driving Power: Provides ≥ 13 V at 20 mA into loads up to 650 Ω, ensuring compatibility with high-impedance field devices
• Integrated Diagnostics: Features lead breakage monitoring with immediate alarm triggering for open field circuits
• Ultra-Slim Design: 12.5 mm width enables high packing density on 35 mm DIN rails, saving valuable control cabinet space
• Tool-Free Wiring: Spring terminals with push-in connection technology significantly reduce wiring time compared to screw terminals
• Global Approvals: Suitable for worldwide use with ATEX, IECEx, UL, FM, and DNV Marine certifications

The KCD2-SCD-Ex1.SP is certified for use in Zone 0/1/2 applications with the following specifications:

• Protection Level: [Ex ia Ga] IIC, [Ex ia Da] IIIC
• Functional Safety: Up to SIL 2 acc. to IEC/EN 61508 (Systematic Capability SC 3)
• Ex-Values (Output):
  • Uo: 25.2 V
  • Io: 100 mA
  • Po: 630 mW
  • Ci: 5.7 nF

This device serves as the ideal interface between control systems (DCS/PLC) and field devices in various industrial applications:

• Process Automation: Controlling I/P converters for pneumatic valves in chemical plants
• Oil & Gas: Driving SMART positioners in potentially explosive atmospheres (Ex area)
• Remote Monitoring: Utilizing the HART protocol to overlay digital diagnostics data on analog 4-20 mA loops

Part Number: KCD2-SCD-Ex1.SP (Prod. ID: 321422)

Required Accessories (sold separately):

• Power Feed Module: KFD2-EB2(.R4A.B)(.SP)
• Universal Power Rail: UPR-03(-M)(-S)
• Profile Rail: K-DUCT-BU(-UPR-03)