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The Switch amplifier is a 2-channel isolated barrier designed for reliable signal transmission in hazardous environments. It supports a 24 V DC supply and accommodates both dry contact and NAMUR inputs for versatile application.
The Switch amplifier, part of the Pepperl+Fuchs Intrinsic Safety Barriers family, is engineered to facilitate the safe operation of field devices in explosive atmospheres. It provides a robust solution for isolating and amplifying signals, ensuring that the integrity of the control system is maintained while mitigating the risks associated with hazardous locations.
Common applications for this technology include process automation, safety monitoring, and remote control systems where reliable signal transmission is critical. The active transistor output coupled with line fault detection (LFD) enhances the system’s reliability, allowing for immediate identification of faults in the signal path. Additionally, the reversible mode of operation offers flexibility, accommodating various operational requirements in industrial settings.
| Degree of protection | IEC 60529:2001 |
| Rated current | 50 mA |
| Input/input | not available |
| Input/power supply | reinforced insulation acc. to IEC 62103, rated insulation voltage 300 Vrms |
| Ambient temperature | -20 … 60 °C (-4 … 140 °F) |
| Signal type | Digital Input |
| Safety Integrity Level (SIL) | SIL 2 |
| EU-Type Examination Certificate | PTB 00 ATEX 2035 |
| Switching frequency | 5 kHz |
| Connection | screw terminals |
| Ripple | 10 % |
| Rated values | acc. to EN 60947-5-6 (NAMUR) |
| Input/Output | reinforced insulation acc. to IEC 62103, rated insulation voltage 300 Vrms |
| Output/Output | not available , common pole terminal 14+ |
| Electromagnetic compatibility | NE 21:2004 |
| 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- |
| Certificate | TV 99 ATEX 1499 X |
| Configuration | via DIP switches |
| Rated voltage | 20 … 30 V DC |
| Collective error message | Power Rail |
| Optional accessories | – power feed module KFD2-EB2(.R4A.B)(.SP) – universal power rail UPR-03(-M)(-S) – profile rail K-DUCT-BU(-UPR-03) |
| Connection | terminals 1+, 2+, 3-; 4+, 5+, 6- |
| 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. |
| Line fault detection | breakage I 0.1 mA , short-circuit I > 6 mA |
| Connection side | control side |
| Output I, II | signal ; electronic output, active |
| Mass | approx. 150 g |
| Mounting | on 35 mm DIN mounting rail acc. to EN 60715:2001 |
| Degree of protection | IP20 |
| Input | EN 60947-5-6:2000 |
| Output/power supply | not available , common pole terminal 14+ |
| Labeling | space for labeling at the front |
| Switching point/switching hysteresis | 1.2 … 2.1 mA / approx. 0.2 mA |
| Open circuit voltage/short-circuit current | approx. 8 V DC / approx. 8 mA |
| Connection | output I: terminals 7+ ; output II: terminals 9+ |
| Display elements | LEDs |
| Galvanic isolation | IEC 62103:2003 |
| Signal level | 1-signal: (L+) – 3.5 V (100 mA, short-circuit protected) 0-signal: switched off (off-state current 10 andmicro;A) |
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