LEDs Pepperl Fuchs Safety Barrier Isolated Barrier Switch Amplifier 2 Channel KFA6-SR2-EX2.W
Price:
Negotiable
MOQ:
1
Delivery Time:
Negotiable
Brand:
PEPPERL FUCHS
Product Description
PEPPERL FUCHS KFA6-SR2-EX2.W Isolated Barrier Switch Amplifier 2 Channel
Features:
- 2-channel isolated barrier
- 230 V AC supply
- Dry contact or NAMUR inputs
- Relay contact output
- Line fault detection (LFD)
- Reversible mode of operation
- Up to SIL 2 acc. to IEC/EN 61508 / IEC/EN
Function
This isolated barrier is used for intrinsic safety applications. It transfers digital signals (NAMUR sensors/mechanical contacts) from a hazardous area to a safe area.
The proximity sensor or switch controls a form C changeover relay contact for the safe area load. The normal output state can be reversed using switches S1 and S2. Switch S3 is used to enable or disable line fault detection of the field circuit.
During an error condition, the relays revert to their de-energized state and the LEDs indicate the fault according to NAMUR NE44.
Technical data
General specifications
Signal type: Digital Input
Functional safety related parameters
Safety Integrity Level (SIL): SIL 2
Supply
Connection: terminals 14, 15
Rated voltage: 207 ... 253 V AC, 45 ... 65 Hz
Power dissipation: 1.2 W
Power consumption: max. 1.3 W
Input
Connection side: field side
Connection: terminals 1+, 2+, 3-; 4+, 5+, 6-
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, II: signal ; relay
Contact loading: 253 V AC/2 A/cos φ > 0.7; 126.5 V AC/4 A/cos φ > 0.7; 40 V DC/2 A resistive load
Energized/De-energized delay: approx. 20 ms / approx. 20 ms
Mechanical life: 107 switching cycles
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
Labeling: space for labeling at the front
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Company
Achievers Automation Limited
Location
RM 509, 5/F, THE CLOUD, 111,TUNG CHAU STREET, TAI KOKTSUI, KOWLOON,HONG KONG
Contact Person
Joanna Yang