Pepperl+Fuchs KFD2-STC4-Ex1 isolated barrier, 1 channel, 4–20 mA, HART, SIL 2, Ex ia

The Pepperl+Fuchs KFD2-STC4-Ex1 is a single-channel isolated intrinsic safety barrier of the K-System for cabinet mounting. It supplies and galvanically isolates 2- and 3-wire field transmitters for pressure, temperature and flow with 0/4…20 mA signals and passes HART.

Suitable for loops up to SIL 2. Certificate BAS 99 ATEX 7060 X, marking [Ex ia Ga] IIC, [Ex ia Da] IIIC. A separate certificate allows the device itself to be installed in zone 2 (Ex nA II T4). Terminals with test sockets, 20…35 V DC supply via terminals or Power Rail.

Key features:

• Galvanic isolation and supply of field transmitters
• 0/4…20 mA signal with HART pass-through
• Up to SIL 2
• Marking [Ex ia Ga] IIC, [Ex ia Da] IIIC
• Supply via terminals or Power Rail

Specifications:

• Part number: KFD2-STC4-Ex1
• Type: isolated barrier, K-System
• Channels: 1
• Supply voltage: 20…35 V DC, terminals or Power Rail
• Input: 2- and 3-wire SMART transmitters, 0/4…20 mA
• Output: 0/4…20 mA, HART pass-through
• Functional safety: up to SIL 2
• Certificate: BAS 99 ATEX 7060 X
• Marking: [Ex ia Ga] IIC, [Ex ia Da] IIIC
• Installation in zone 2: Ex nA II T4 (separate certificate)
• Power consumption / dissipation: 1.8 W / 1.4 W

Application: Process control cabinets in oil and gas, chemical, pharmaceutical and power industries.

Before ordering: This is a cabinet module, not a field sensor. Installation and wiring only according to the explosion protection design.