Pepperl+Fuchs (P+F) safety barrier KCD2-STC-Ex1 in stock

Brand

P+F/Pepperl+Fuchs (Germany)

Application Areas

Environmental Protection, Chemical Industry, Biotechnology, Petroleum, Comprehensive

Pepperl+Fuchs P+F Safety Barrier Smart Transmitter Power Supply KCD2-STC-Ex1.2 O

Pepperl+Fuchs P+F safety barriers are connected between intrinsically safe and non-intrinsically safe circuits. They are devices that limit the voltage and current supplied to intrinsically safe circuits within a safe range.

Pepperl+Fuchs P+F Safety Barrier

Features

》Channel isolation barrier

》24V DC power supply (electric railway)

》2-wire SMART transmitter and current source input signals

》Distributor (1 input and 2 outputs)

》Dual output 0/4 mA... 20 mA or 0/1 V... 5 V

》Terminal module with test socket

》SIL 2(SC 3) acc. 61508

Pepperl+Fuchs P+F Safety Barrier Introduction:

Pepperl+Fuchs P+F safety barriers, also known as safety limiters, are an important component of intrinsically safe systems.

Pepperl+Fuchs (P+F) safety barriers are mainly divided into two categories: Zener barriers and isolation barriers.

The core components of a Zener barrier are Zener diodes, current-limiting resistors, and fast-acting fuses.

Isolation barriers not only limit energy but also provide isolation. They mainly consist of a loop energy-limiting unit, a signal and power isolation unit, and a signal processing unit.

The main function of a safety barrier is to limit current and voltage, ensuring that the energy available to field instruments remains within safe limits.

Pepperl+Fuchs (P+F) safety barrier structure:

Zener barrier

The circuit uses fast-acting fuses, current-limiting resistors, or voltage-limiting diodes to limit the input electrical energy, thereby ensuring the energy output to the hazardous area is controlled.

1. The installation location must have a very reliable grounding system. This requirement is obviously very stringent and difficult to guarantee in practical engineering applications.

3. Zener barriers are significantly affected by the power supply and are easily damaged by power fluctuations.

4. Because the circuit principle of Zener barriers requires the absorption of energy from the input circuit, it is prone to output instability.

Advantages of Pepperl+Fuchs (P+F) safety barriers:

① Although isolated safety barriers are more expensive than Zener barriers, their many advantages and features bring convenience to users, making them an increasingly popular choice.

② Using isolated safety barriers effectively isolates field circuit signals from safe circuit signals. This eliminates the need for an intrinsically safe grounding system in intrinsically safe control systems, simplifying construction.

③ Using isolated safety barriers significantly enhances the anti-interference capability of detection and control circuits, improving system reliability.

④ Using isolated safety barriers allows for grounding of field instruments and permits non-isolated field instruments.

⑤ Isolated safety barriers have many protective circuits, reducing the likelihood of accidental damage and allowing for live maintenance of field instruments, thus shortening start-up preparation time and reducing downtime.

⑥ Isolated safety barriers have strong signal processing capabilities. Examples include switching input status control, mV, and Pt100 changing to 4~20mA. This provides greater convenience, rationality, and effectiveness for the application of field instruments and control systems.

⑦ When users simultaneously apply DCS and ESD, selecting a one-input, two-output safety barrier can effectively isolate the two systems and prevent mutual interference.

⑧ Loop-powered isolation safety barriers retain the advantages of active isolation safety barriers and offer the same wiring convenience as Zener barriers. They do not require a separate 24V power supply, making them particularly suitable for DCS systems directly powered by I/O cards.

The following are Pepperl+Fuchs (P+F) safety barriers in stock:

KCD2-STC-Ex1

KCD2-SCD-EX1

KCD2-STC-1

KCD2-SCD-1

KFD2-STC5-EX1

KFD2-STC5-EX1.2O

KCD2-STC-EX1.20

KCD2-STC-1.2O

KFD2-STC5-1.2O

KCD2-UT2-EX1

KFD2-UT2-EX2

KFD2-UT2-EX1

KFD2-STC5-EX2

KFD2-CD-EX1.32

KFD2-EB2.R4A.B

KFD0-SD2-EX1.1045

KCD0-SD-EX1.1245

KFD2-VR4-EX1.26

KCD2-RR-EX1 KFD2-SCD-EX1.LK

KFD2-SCD2-Ex2.LK

KFD2-SCD2-EX1.LK

KCD2-SR-EX1.LB

KCD2-SOT-EX1.LB

KFD2-SR2-EX1.W

KFD2-SR2-EX2.W

KFD2-SR2-EX1.W.LB

KFA6-SR2-EX1.W

K-CJC-BU

KC-CJC-1BU

K-LB-1.30

K-LB-1.30G

K-LB-2.30

K-LB-2.30G

K-LB-2.6

K-LB-2.6G

K-LB-1.6

KFD2-STC5-1

KFD2-SOT3-EX2

KCD2-STC-1.20

UPR-03

KFD0-RSH-1 K-ADP-USB

KFD2-UT2-1

KFD2-CRG2-Ex1.D

KFD2-UFC-EX1.D

KCD2-SR-EX2

KCD2-UT2-1

KCD2-SOT-EX2

FS-LB-I

KFA6-SR2-EX2.W

KFD2-DWB-EX1.D

KFD2-SL2-EX2.B

KFD2-UT2-EX2-1

KCD2-STC-EX1.ES

KFD0-RSH-1.4S.PS2

KFU8-UFC-1.D

KFD2-STC4-EX1.2O

K-LB-1.6G

K-HM26-2M-261533

M-LB-2.30.T3.D

KFD0-RSH-1-Y2

KCD2-SR-1.LB M-LB-2.275TT.D

KFD2-VR-EX1.18

KFD0-HMS-16

KFD2-HMM-16

FI-PFH-NS0137-R

FI-PFH-TR-AI-370X-GP

KFD2-STC4-EX1

Our company mainly deals in European and American brands and can purchase brands from any European country. For example, our advantageous German brands include: BURKERT, DEMAG, HAWE, REXROTH, HYDAC, PILZ relays, FESTO, IFM sensors, E+H, HEIDENHAIN, P+F sensors, SICK, TURCK, and HIRSCHMANN industrial switches. German brands: Hengstler, Murr, Schmersal, Samson, EPRO (Emerson's subsidiary), MOOG (USA), ASCO (USA), MAC (USA), NUMATICS (USA), PARKER (USA), VICKERS (USA), ROSS (USA), Norgren (UK), OMAL (Italy), ATOS (Italy), CAMOZZI (Italy), UNIVER (Italy), and Camozzi (Italy).