Pepperl+Fuchs KFD2-STV4-EX2-2

Transmitter Power Supply

The KFD2-STV4-EX2-2 is a two-channel insulated barrier from Pepperl+Fuchs designed for safety applications. It is used to power two-wire SMART transducers in hazardous areas and transmits the analog input signal to the safe area as an isolated voltage value. Digital signals can be superimposed on an input signal in a hazardous or safe area and transmitted in both directions.

Datasheet:

• Signal type: Analog input
• Safety level (SIL): SIL 2
• Connection: Power bus or terminals 14+, 15-
• Nominal voltage: 20 ... 35 V DC
• Ripples: Within power tolerance
• Dissipated power: 1.8 W
• Maximum power consumption: 2.7 W
• Electromagnetic compatibility: NE 21: 2011
• Degree of protection: IEC 60529: 2001
• Protection against electric shock: UL 61010-1: 2012
• Ambient temperature: -20 ... 60 °C (-4 ... 140 °F)
• Degree of protection: IP20
• Connection: Screw terminals

Advantages:

• Insulated Barrier: Provides electrical isolation between hazardous and safe areas, preventing the transmission of a spark or current that could cause an explosion or ignition.
• Safety Level (SIL) 2: Meets the highest safety requirements, guaranteeing reliable operation in hazardous environments.
• Certified for use in Ex areas: Has ATEX, IECEx and CSA C/US certifications for use in areas where explosive gases, vapors or dust are present.