Pepperl-Fuchs KFD2-SR2-Ex1.W.LB Switch Amplifier Part no: 203351 With Special Discount In Ready Stock
Pepperl+Fuchs is a leading supplier of automation equipment for a wide range of industries and has been associated with safety in hazardous areas for decades. Our deep expertise enables us to offer a complete range of automation solutions for the process automation industry.
This isolated barrier is used for intrinsic safety applications.
The device transfers digital signals from NAMUR sensors or dry contacts from the hazardous area to the non-hazardous area.
The proximity sensor or the mechanical contact controls the control side load for a relay contact output. The device output changes the state when
the input signal changes the state.
Via switches the mode of operation can be reversed and the line fault detection can be switched off.
During a fault condition, the relay reverts to its de-energized state and the LEDs indicate the fault according to NAMUR NE 44.
If the device is operated via Power Rail, additionally a collective error message is available.
1-channel isolated barrier
24 V DC supply (Power Rail)
Dry contact or NAMUR inputs
Usable as signal splitter (1 input and 2 outputs)
Relay contact output
Fault relay contact output
Line fault detection (LFD)
Reversible mode of operation
Up to SIL 2 (SC 3) acc. to IEC/EN 61508
| General specifications | ||
|---|---|---|
| Signal type | Digital Input | |
| Functional safety related parameters | ||
| Safety Integrity Level (SIL) | SIL 2 | |
| Systematic capability (SC) | SC 3 | |
| Supply | ||
| Connection | Power Rail or terminals 14+, 15- | |
| Rated voltage | 19 ... 30 V DC | |
| Ripple | ≤ 10 % | |
| Rated current | ≤ 45 mA | |
| Power dissipation | ≤ 0.9 W | |
| Power consumption | ≤ 0.9 W | |
| Input | ||
| Connection side | field side | |
| Connection | terminals 1+, 2+, 3- | |
| Rated values | acc. to EN 60947-5-6 (NAMUR) | |
| Open circuit voltage/short-circuit current | approx. 8 V DC / approx. 8 mA | |
| Switching point/switching hysteresis | 1.2 ... 2.1 mA / approx. 0.2 mA | |
| Line fault detection | breakage I ≤ 0.1 mA , short-circuit I > 6 mA | |
| Pulse/Pause ratio | min. 20 ms / min. 20 ms | |
| Output | ||
| Connection side | control side | |
| Connection | output I: terminals 7, 8, 9 ; output II: terminals 10, 11, 12 | |
| Output I | signal ; relay | |
| Output II | signal or fault message ; relay | |
| Contact loading | 250 V AC/2 A/cos φ > 0.75; 126.5 V AC/4 A/cos φ > 0.75; 40 V DC/2 A resistive load | |
| Minimum switch current | 2 mA / 24 V DC | |
| Energized/De-energized delay | approx. 20 ms / approx. 20 ms | |
| Mechanical life | 107 switching cycles | |
| Collective error message | Power Rail | |
| Transfer characteristics | ||
| Switching frequency | ≤ 10 Hz | |
| Galvanic isolation | ||
| Input/Output | reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff | |
| Input/power supply | reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff | |
| Output/power supply | reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff | |
| Output/Output | reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff | |
| Indicators/settings | ||
| Display elements | LEDs | |
| Control elements | DIP switch | |
| Configuration | via DIP switches | |
| Labeling | space for labeling at the front | |
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The product portfolio includes intrinsic safety isolators, Zener barriers, signal conditioners, fieldbus technology, Remote I/O, HART interfaces, level measurement, purge & pressurization systems, Human Machine Interfaces (HMI) for hazardous environments, custom cabinets, and junction boxes.
We provide process industry companies all over the world with proven components and tailor-made solutions for a diverse range of applications. The branches that we cover include the oil and gas industry, petrochemical, chemical industry, pharmaceutical industry, as well as wastewater treatment plants, and power technology.
Windy Wang
HONGKONG XIEYUAN TECH CO., LIMITED
Add: 7-A16,Caishen Commercial Plaza,Hankou Railway Station,Wuhan,China
Tel: +86-27-8588 3233 | Fax:+86-27-8530 9780 | Mobile/Whatsapp :+86 15972199006 | Skype: windy@hkxytech.com
Mail: windy@hkxytech.com
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