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The Switch Amplifier is a 2-channel isolated barrier designed for use in safety-critical environments. It supports 24 V DC supply and is compatible with dry contact or NAMUR inputs, making it versatile for various applications.
The Switch Amplifier within the Pepperl+Fuchs Intrinsic Safety Barriers range is engineered to enhance signal reliability in hazardous areas by providing electrical isolation between field devices and control systems. This device is particularly useful in applications where safety and compliance with international standards are paramount, such as in chemical processing, oil and gas, and other industries operating in explosive atmospheres.
Featuring a reversible mode of operation, the Switch Amplifier can function effectively as a signal splitter, allowing one input to be distributed to two outputs. Its robust design includes dual relay contact outputs with AND logic, ensuring reliable signal processing. Additionally, the device incorporates line fault detection (LFD), which enhances system integrity by identifying potential faults in the connected lines. With a safety rating of up to SIL 2 according to IEC 61508, this Switch Amplifier is well-suited for applications requiring high levels of safety assurance.
| Switching point/switching hysteresis | 1.2 … 2.1 mA / approx. 0.2 mA |
| Dimensions | 20 x 119 x 115 mm (0.8 x 4.7 x 4.5 inch) , housing type B2 |
| Ripple | 10 % |
| Display elements | LEDs |
| Minimum switch current | 1 mA / 24 V DC |
| Optional accessories | power feed module KFD2-EB2 Universal Power Rail UPR-03 Universal Power Rail UPR-03-S profile rail K-DUCT-BU profile rail K-DUCT-UPR-03 |
| IECEx approval | IECEx EXA 16.0001X |
| Mass | approx. 150 g |
| Connection | screw terminals |
| Pulse/Pause ratio | min. 20 ms / min. 20 ms |
| Contact loading | 48 V AC/1 A/cos andphi; > 0.7; 40 V DC/1 A resistive load |
| Collective error message | Power Rail |
| Input | EN 60947-5-6:2000 |
| Line fault detection | breakage I 0.1 mA , short-circuit I 6.5 mA |
| Signal type | Digital Input |
| Connection | output I: terminals 7, 8 ; output II: terminals 8, 9 ; output III: terminals 10, 11 ; output IV: terminals 11, 12 |
| Rated current | 30 … 20 mA |
| Mechanical life | 108 switching cycles |
| EU-Type Examination Certificate | EXA 16 ATEX 0001 X |
| Output/power supply | basic insulation according to IEC/EN 61010-1, rated insulation voltage 32 Veff , functional insulation, rated insulation voltage 50 Veff |
| Ambient temperature | -20 … 60 °C (-4 … 140 °F) |
| Rated voltage | 19 … 30 V DC |
| Connection | Power Rail or terminals 14+, 15- |
| Configuration | via DIP switches |
| Energized/De-energized delay | approx. 20 ms / approx. 20 ms |
| Mounting | on 35 mm DIN mounting rail acc. to EN 60715:2001 |
| Input/power supply | reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff |
| Power consumption | < 600 mW |
| Safety Integrity Level (SIL) | SIL 2 |
| Connection side | control side |
| Degree of protection | IEC 60529:2001 |
| Labeling | space for labeling at the front |
| Degree of protection | IP20 |
| Connection | terminals 1+, 2+, 3-; 4+, 5+, 6- |
| Rated values | acc. to EN 60947-5-6 (NAMUR) |
| Input/Output | reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff |
| Output/Output | basic insulation according to IEC/EN 61010-1, rated insulation voltage 32 Veff , functional insulation, rated insulation voltage 50 Veff |
| Output I, II, III, IV | channel 1, 2; relay |
| Electromagnetic compatibility | NE 21:2012 , EN 61326-3-2:2008 |
| Switching frequency | 10 Hz |
| Open circuit voltage/short-circuit current | approx. 10 V DC / approx. 8 mA |
| Connection side | field side |
| Supplementary information | Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com. |
| Control elements | DIP-switch |
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