P+F safety barrier KCD2-STC-EX1.20 in stock

Brand

P+F/Pepperl+Fuchs (Germany)

Application Areas

Chemical, Petroleum, Energy, Electrical, General

Pepperl+Fuchs (Germany) safety barriers are connected between intrinsically safe and non-intrinsically safe circuits. They limit the voltage and current supplied to intrinsically safe circuits within a safe range.

Introduction to Pepperl+Fuchs (Germany) Safety Bars:

Pepperl+Fuchs (Germany) safety barriers, also known as safety limiters, are an important component of intrinsically safe systems.

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

The core components of a Zener type safety barrier are a Zener diode, a current-limiting resistor, and a fast-blow fuse.

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

The main function of Pepperl+Fuchs (Germany) safety barriers is to limit current and voltage, ensuring that the energy available to field instruments is within a safe range.

Pepperl+Fuchs (Germany) safety barriers are also known as safety retainers. A safety barrier is a safety interface for intrinsically safe circuits. It allows bidirectional transmission of electrical signals between safe (intrinsically safe) and hazardous (non-intrinsically safe) areas and limits energy transfer from the hazardous area to the safe area due to a fault. Common safety barriers include Zener and isolation types.

Pepperl+Fuchs (P+F) safety barriers are used in intrinsically safe explosion-proof systems. These devices, installed in safe locations and containing both intrinsically safe and non-intrinsically safe circuits, limit the energy delivered to the intrinsically safe circuit through current-limiting and voltage-limiting circuits. This prevents hazardous energy from non-intrinsically safe circuits from entering the intrinsically safe circuit. In intrinsically safe explosion-proof systems, these barriers are called associated devices and are an important component.

Associated devices in intrinsically safe explosion-proof systems refer to electrical devices installed in safe locations that connect intrinsically safe and non-intrinsically safe electrical equipment.

Because safety barriers are designed as energy-limiting interfaces between field equipment and control room equipment, they ensure that the energy transmitted to field equipment is intrinsically safe, regardless of whether the control room equipment is in a normal or faulty state.

The National Instrumentation and Meter Explosion-Proof Safety Supervision Station of China is a Class A agency in the People's Republic of China supervising the production of explosion-proof products. It has strict, scientific, and detailed regulations for intrinsically safe safety barriers. Only enterprises certified by this supervision station and their developed and manufactured products possess the safety performance required by the standards; otherwise, it may cause incalculable damage to the user's equipment, personnel, and production.

Advantages of Pepperl+Fuchs (P+F) Safety Barriers (Germany):

① Although isolated safety barriers are more expensive than Zener barriers, their many advantages and features bring significant convenience to users, leading to an increasing preference for them.

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 during the application of intrinsically safe explosion-proof systems.

③ Using isolated safety barriers greatly 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 numerous protective circuits, reducing the likelihood of accidental damage and allowing live maintenance of field instruments, thus shortening start-up preparation time and minimizing downtime.

⑥ Isolated safety barriers have strong signal processing capabilities. For example, they can convert switch input status control, mV, and Pt100 to 4~20mA, etc. This provides greater convenience, rationality, and effectiveness for the application of field instruments and control systems.

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

⑧ Loop-powered isolated safety barriers retain the advantages of active isolated safety barriers and offer the same ease of wiring 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.

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

Our company mainly deals in European and American brands and can source brands from any European country. For example, our key 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 Group)

American brands: MOOG, ASCO, MAC, NUMATICS, PARKER, Vickers, Helón (Norgren)

Italian brands: OMAL, ATOS, CAMOZZI, UNIVER, Camozzi