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The Switch Amplifier is a robust 1-channel isolated barrier designed for use in hazardous environments. Operating on a 24 V DC supply, it supports dry contact and NAMUR inputs while offering redundant signal outputs.
The Switch Amplifier is part of a comprehensive range of intrinsic safety barriers that are essential for ensuring safe operation in hazardous areas. These devices are designed to provide electrical isolation and signal conditioning for field devices in industrial applications, effectively protecting against potential ignition sources. Commonly utilized in process automation and safety systems, the Switch Amplifier converts low-level signals from various input types, including dry contacts and NAMUR sensors, into usable output signals.
This device can function as a signal splitter, allowing a single input to drive multiple outputs, which enhances system flexibility and reduces the need for multiple devices. Additionally, it features a relay contact output along with a fault relay contact output, ensuring reliable performance and fault indication. The integration of line fault detection (LFD) functionality further enhances safety, making it compliant with up to SIL 2 according to IEC 61508 standards, which is critical for applications requiring high safety integrity levels.
| Minimum switch current | 2 mA / 24 V DC |
| Connection | SL1: 1a(-), 1b(-); 2a(+), 2b(+) |
| Signal type | Digital Input |
| Rated current | 30 mA |
| Ripple | 10 % |
| Mass | approx. 100 g |
| Contact loading | 50 V DC / 0.5 A |
| Certificate | PF 08 CERT 1047 X |
| Degree of protection | IEC 60529:2001 |
| Switching frequency | 10 Hz |
| Energized/De-energized delay | 20 ms / 20 ms |
| Coding | pin 1 and 2 trimmed For further information see system description. |
| Galvanic isolation | EN 50178:1997 |
| Connection | SL1: 6b |
| Labeling | space for labeling at the front |
| Connection | SL1: 8a, 7a; 10a, 9a |
| Dimensions | 12.5 x 128 x 106 mm (0.5 x 5.1 x 4.2 inch) |
| Connection | SL2: 5a(+), 5b(-) |
| Output/power supply | basic insulation acc. to EN 50178, rated insulation voltage of 50 V AC |
| Display elements | LEDs |
| Mounting | on Termination Board |
| Ambient temperature | -20 … 60 °C (-4 … 140 °F) |
| Output/Output | basic insulation acc. to EN 50178, rated insulation voltage of 50 V AC |
| Output II | signal or error message ; relay |
| Electromagnetic compatibility | NE 21:2006 For further information see system description. |
| Input | EN 60947-5-6:2000 |
| Output type | open collector transistor (internal fault bus) |
| Open circuit voltage/short-circuit current | approx. 10 V DC / approx. 8 mA |
| Output I | signal ; relay |
| Mechanical life | 107 switching cycles |
| Safety Integrity Level (SIL) | SIL 2 |
| Pulse/Pause ratio | min. 20 ms / min. 20 ms |
| Power consumption | 500 mW |
| Power dissipation | 500 mW |
| Degree of protection | IP20 |
| Supplementary information | Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com. |
| EU-Type Examination Certificate | BASEEFA 06 ATEX 0093 X |
| Control elements | DIP-switch |
| Configuration | via DIP switches |
| Rated voltage | 19 … 30 V DC bus powered via Termination Board |
| Connection side | control side |
| Switching point/switching hysteresis | 1.2 … 2.1 mA / approx. 0.2 mA |
| Connection side | field side |
| IECEx approval | IECEx BAS 06.0026X |
| Rated values | acc. to EN 60947-5-6 (NAMUR), see system description for electrical data |
| Line fault detection | breakage I 0.1 mA , short-circuit I 6.5 mA |
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