Pepperl+Fuchs KFD2-SR2-Ex2.2S
Switch Amplifier
- 2-channel isolated barrier
- 24 V DC supply (Power Rail)
- Dry contact or NAMUR inputs
- Usable as signal splitter (1 input and 2 outputs)
- 2 x 2 relay contact outputs with AND logic
- Line fault detection (LFD)
- Reversible mode of operation
- Up to SIL 2 acc. to IEC 61508
- Overview +
- Comments +
The KFD2-SR2-Ex2.2S is a signal isolator and relay module that provides reliable signal transfer from field devices to control systems in hazardous areas. It features dual channel operation, a wide power supply range, and relay outputs that support both normally open and closed contacts. Ideal for process automation, it offers LED indicators for easy status monitoring.
Labelingspace for labeling at the front
| Mass | approx. 150 g |
| Contact loading | 50 V AC/1 A/cos andphi; > 0.7; 40 V DC/1 A resistive load |
| Output/power supply | basic insulation according to IEC/EN 61010-1, rated insulation voltage 32 Veff , functional insulation, rated insulation voltage 50 Veff |
| Safety Integrity Level (SIL) | SIL 2 |
| Dimensions | 20 x 119 x 115 mm (0.8 x 4.7 x 4.5 inch) , housing type B2 |
| Connection | Power Rail or terminals 14+, 15- |
| Connection side | field side |
| Ambient temperature | -20 ... 60 ?°C (-4 ... 140 ?°F) |
| Rated voltage | 20 ... 30 V DC |
| Input/power supply | reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff |
| Connection | screw terminals |
| Ripple | 10 % |
| Open circuit voltage/short-circuit current | approx. 8 V DC / approx. 8 mA |
| Display elements | LEDs |
| Connection | output I: terminals 7, 8 ; output II: terminals 8, 9 ; output III: terminals 10, 11 ; output IV: terminals 11, 12 |
| Power consumption | < 1.3 W |
| Degree of protection | IEC 60529:2001 |
| Certificate | T??V 99 ATEX 1493 X |
| Input/Output | reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff |
| Line fault detection | breakage I 0.1 mA , short-circuit I > 6 mA |
| Input | EN 60947-5-6:2000 |
| Collective error message | Power Rail |
| Minimum switch current | 1 mA / 24 V DC |
| Rated current | 50 mA |
| Control elements | DIP-switch |
| Switching frequency | 10 Hz |
| Degree of protection | IP20 |
| Rated values | acc. to EN 60947-5-6 (NAMUR) |
| Configuration | via DIP switches |
| Signal type | Digital Input |
| Supplementary information | Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com. |
| Mounting | on 35 mm DIN mounting rail acc. to EN 60715:2001 |
| Connection side | control side |
| Energized/De-energized delay | approx. 20 ms / approx. 20 ms |
| Output/Output | basic insulation according to IEC/EN 61010-1, rated insulation voltage 32 Veff , functional insulation, rated insulation voltage 50 Veff |
| Pulse/Pause ratio | min. 20 ms / min. 20 ms |
| Electromagnetic compatibility | NE 21:2004 |
| Power dissipation | 1 W |
| Output I, II, III, IV | channel 1, 2; relay |
| Connection | terminals 1+, 2+, 3-; 4+, 5+, 6- |
| EU-Type Examination Certificate | PTB 00 ATEX 2083 |
| Switching point/switching hysteresis | 1.2 ... 2.1 mA / approx. 0.2 mA |
| Mechanical life | 108 switching cycles |
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