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The Switch Amplifier is a 1-channel isolated barrier designed for safe signal processing in hazardous environments. It operates on a 24 V DC supply and supports dry contact or NAMUR inputs, making it versatile for various applications.
The Switch Amplifier belongs to a specialized category of intrinsic safety barriers that ensure the safe operation of electrical equipment in potentially explosive atmospheres. These devices serve to isolate and protect control circuits from hazardous locations, effectively preventing ignition sources from reaching flammable materials. Their design adheres to stringent safety standards, including compliance with SIL 2 according to IEC 61508, making them suitable for critical industrial applications.
This particular amplifier not only functions as an isolated barrier but also acts as a signal splitter, allowing one input to provide two outputs. It features a relay contact output as well as a fault relay contact output, facilitating efficient monitoring and control of system integrity. Line fault detection (LFD) capabilities further enhance safety by identifying any potential issues within the connected circuits, ensuring reliable operation in challenging conditions. These characteristics make the Switch Amplifier ideal for use in industries such as oil and gas, chemical processing, and any field where intrinsic safety is paramount.
| Display elements | LEDs |
| Input/Output | reinforced insulation acc. to EN 50178, rated insulation voltage 300 Veff |
| Connection | output I: terminals 5, 6 ; output II: terminals 7, 8 |
| Ambient temperature | -20 … 60 °C (-4 … 140 °F) |
| Input/power supply | reinforced insulation acc. to EN 50178, rated insulation voltage 300 Veff |
| Ripple | 10 % |
| Mechanical life | 107 switching cycles |
| Rated voltage | 19 … 30 V DC |
| Line fault detection | breakage I 0.1 mA , short-circuit I 6.5 mA |
| Minimum switch current | 2 mA / 24 V DC |
| Connection | screw terminals |
| Power consumption | 500 mW |
| Control elements | DIP-switch |
| Energized/De-energized delay | 20 ms / 20 ms |
| Pulse/Pause ratio | min. 20 ms / min. 20 ms |
| Configuration | via DIP switches |
| Certificate | PF 06 CERT 0972 X |
| Supplementary information | Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com. |
| Output I | signal ; relay |
| Rated values | acc. to EN 60947-5-6 (NAMUR) |
| Connection | Power Rail or terminals 9+, 10- |
| Switching point/switching hysteresis | 1.2 … 2.1 mA / approx. 0.2 mA |
| Safety Integrity Level (SIL) | SIL 2 |
| Connection side | field side |
| Power dissipation | 500 mW |
| Dimensions | 12.5 x 114 x 119 mm (0.5 x 4.5 x 4.7 inch) , housing type A2 |
| Degree of protection | IEC 60529:2001 |
| Switching frequency | 10 Hz |
| Connection side | control side |
| IECEx approval | IECEx BAS 06.0025 |
| EU-Type Examination Certificate | BASEEFA 06 ATEX 0092 |
| Rated current | 30 mA |
| Electromagnetic compatibility | NE 21 |
| Open circuit voltage/short-circuit current | approx. 10 V DC / approx. 8 mA |
| Signal type | Digital Input |
| Output/power supply | reinforced insulation acc. to EN 50178, rated insulation voltage 300 Veff |
| Degree of protection | IP20 |
| Mounting | on 35 mm DIN mounting rail acc. to EN 60715:2001 |
| Connection | terminals 1+, 2- |
| Labeling | space for labeling at the front |
| Contact loading | 253 V AC/2 A/cos andphi; > 0.7; 126.5 V AC/4 A/cos andphi; > 0.7; 30 V DC/2 A resistive load |
| Output II | signal or error message ; relay |
| Mass | approx. 100 g |
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