Pepperl+Fuchs KCD2-STC-Ex1.2O | 1-Channel SMART Transmitter Power Supply

Pepperl+Fuchs KCD2-STC-Ex1.2O | Reliable SMART Transmitter Power Supply for Intrinsic Safety Applications

Overview

The KCD2-STC-Ex1.2O is a 1-channel isolated barrier from Pepperl+Fuchs, designed to supply power to 2-wire SMART transmitters in hazardous areas. It provides dual analog outputs (current or voltage) and supports bi-directional communication for protocols like HART and BRAIN. The device is SIL 2 certified according to IEC/EN 61508, ensuring high reliability in safety-critical applications.

Key Features

• Signal Type: Analog input

• Input Signal: 0/4–20 mA

• Dual Output:

  • Current: 0/4–20 mA

  • Voltage: 0/1–5 V

• Power Supply: 19–30 V DC via Power Rail or terminals

• Isolation: Galvanic isolation between input, output, and power supply

• Communication: Supports HART and BRAIN protocols

• Configuration: DIP switches for selecting output mode (source/sink/voltage)

• Indicators: LED for power supply status

• Mounting: 35 mm DIN rail (EN 60715)

• Housing Dimensions (W×H×D): 12.5 × 124 × 114 mm

• Protection Class: IP20

• Weight: Approximately 100 g

• Part Number: 272955

Technical Specifications

• Input Terminals:

  • Sink Mode: Terminals 1+, 2-

  • Source Mode: Terminals 3+, 4-

• Output Terminals:

  • Source Mode: Terminals 5-, 6+; 7-, 8+

  • Sink Mode: Terminals 5+, 6-; 7+, 8-

• Load Resistance:

  • Current Output: 0–500 Ω

  • Voltage Output: >1 MΩ

• Voltage Drop (Input): ≤6.1 V at 20 mA

• Short-Circuit Current (Input): 25 mA

• Input Resistance:

  • Terminals 1+, 2-: Max. 500 Ω (BRAIN)

  • Terminals 3+, 4-: ≤310 Ω

• Available Voltage (Input):

  • ≥16 V at 20 mA

  • ≥18.5 V at 4 mA

• Ripple (Output): Max. 50 µA rms

• Transfer Accuracy:

  • Current Output: <20 µA (0.1%)

  • Voltage Output: <10 mV (0.2%)

• Temperature Influence:

  • Current Output: 0.25 µA/K

  • Voltage Output: 80 µV/K

• Frequency Range:

  • Field to Control Side: 0–6 kHz (-3 dB)

  • Control to Field Side: 0.3–6 kHz (-3 dB)

• Settling Time: 6 ms

• Rise/Fall Time: 2 ms

• Safety Integrity Level (SIL): SIL 2 (SC 3) per IEC/EN 61508

• Ambient Temperature Range: -20 °C to +60 °C (extended up to +70 °C with specific mounting conditions)

• Approvals:

  • ATEX: II (1)G [Ex ia Ga] IIC, II (1)D [Ex ia Da] IIIC, I (M1) [Ex ia Ma] I

  • IECEx: [Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I

  • UL: cULus Listed

  • CE: EN 61326-1:2013 (industrial locations)

  • UKCA: CML 21UKEX2894X

Applications

• Chemical and Petrochemical Industries

• Oil and Gas Exploration and Processing

• Pharmaceutical Manufacturing

• Water and Wastewater Treatment Plants

• Food and Beverage Processing

• Power Generation Facilities

Why Choose Pepperl+Fuchs KCD2-STC-Ex1.2O?

• Dual Output Capability: Provides both current and voltage outputs for versatile integration

• Intrinsic Safety: Ensures safe operation in hazardous areas with intrinsic safety certifications

• SIL 2 Certified: Meets stringent safety requirements for critical applications

• Compact Design: Slim 12.5 mm housing saves space in control cabinets

• Easy Configuration: DIP switches allow for straightforward setup and mode selection

• HART Compatibility: Facilitates advanced diagnostics and communication with HART-enabled devices

• Reliable Performance: High accuracy and low ripple ensure precise signal transmission

NEW product in original sealed packaging. The product may be of older version or design. The packaging may have markings, signs of discoloration, and wear. DDPARTSSOLUTION Warranty: 1 Year. Manufacturer's Warranty and Support NEVER apply