TRANSMITTER POWER SUPPLY

Description

The KFD2-STC5-Ex1.20 SMART Transmitter Power Supply is a 1-channel isolated barrier and signal splitter designed for intrinsically safe applications in hazardous areas. Manufactured by Pepperl+Fuchs, it supplies power to 2-wire and 3-wire SMART transmitters while transferring analog signals safely between hazardous and safe areas. The module supports HART communication and provides dual isolated 4–20 mA outputs for process control and monitoring systems.

Key Features

• 1-channel isolated barrier and transmitter power supply
• Supports 2-wire and 3-wire SMART transmitters
• Dual isolated 4–20 mA output signals
• HART, BRAIN, and Foxboro protocol compatibility
• Intrinsically safe interface for hazardous areas
• 24V DC supply via Power Rail or terminals
• Signal splitter with one input and two outputs
• Integrated test points for HART communicators
• SIL 3 capable for safety applications
• DIN rail mounting design for industrial panels

Specifications

1. Product Type: SMART Transmitter Power Supply / Isolated Barrier
2. Model: KFD2-STC5-Ex1.20
3. Input Signal: 4–20 mA
4. Output Signal: Dual 4–20 mA
5. Supply Voltage: 18–30V DC
6. Open Circuit Voltage: 23V
7. Short Circuit Current: 25mA
8. Load Resistance: 0–600 Ω
9. Power Consumption: ≤ 1.7W
10. Power Dissipation: ≤ 1W
11. Communication Protocols: HART, BRAIN, Foxboro
12. Safety Rating: SIL 3
13. Protection Class: IP20
14. Mounting Type: 35 mm DIN Rail
15. Dimensions: 20 × 124 × 115 mm
16. Operating Temperature: -20°C to +60°C
17. Application: Process automation, hazardous area instrumentation, transmitter isolation, signal splitting, industrial control systems, oil & gas, chemical plants