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Ex power supply
- 2 channels
- 5-port 3.75 kVAC galvanic isolation
- Output voltage > 18 V to I.S. area
- Active current loop detection
- Universal supply by AC or DC
- Voltage supply with safety barrier for the supply of equipment mounted in hazardous area.
- Voltage supply with failsafe detection of active current loop from 2-wire transmitters mounted in hazardous area.
- PR5420B has a relay with change-over contacts available in the safe area. When the loop current is within the defined limit, the relay is ON.
- Supply and outputs are floating and galvanically separated.
Mounting / installation
- Mounted vertically or horizontally on a DIN rail. Up to 84 channels per meter can be mounted.
EAC Ex certificate
|Operating temperature||-20°C to +60°C|
|Relative humidity||< 95% RH (non-cond.)|
|Dimensions (HxWxD)||109 x 23.5 x 130 mm|
|Weight approx.||215 g|
|DIN rail type||DIN 46277|
|Wire size||1 x 2.5 mm2 stranded wire|
|Screw terminal torque||0.5 Nm|
|Supply voltage, universal||21.6...253 VAC, 50...60 Hz or 19.2...300 VDC|
|Max. required power||≤ 4 W (2 channels)|
|Internal power dissipation||≤ 2 W (2 channels)|
|Fuse||400 mA SB / 250 VAC|
|Isolation voltage, test / working||3.75 kVAC / 250 VAC|
|EMC immunity influence||< ±0.5%|
|Extended EMC immunity: NAMUR NE21, A criterion, burst||< ±1%|
|Max. voltage||250 VRMS|
|Max. current||2 ARMS|
|Max. AC power||100 VA|
|Max. load at 24 VDC||1 A|
|Output voltage||> 18 VDC at 20 mA|
|Output current||28 mA per channel (max.)|
|Relay outputs: On within limit||> 3.8...< 20.5 mA|
Observed authority requirements
|ATEX 2014/34/EU||DEMKO 99ATEX126256, II (1) GD [EEx ia] IIC|
|EAC Ex TR-CU 012/2011||RU C-DK.GB08.V.00410|