Isolated repeater
PR 3103
- Isolation and 1:1 conversion of standard current signals
- Response time < 7 ms
- Low cost
- Simple - no setup needed
- Slimline 6.1 mm housing
Functional highlights
- Galvanic separation of analog current signals.
- A competitive choice in terms of both price and technology for galvanic isolation of all signal types to SCADA systems or PLC equipment.
- High 3-port isolation provides surge suppression that protects the control system from transients and noise and eliminates ground loops.
- All terminals are over-voltage protected, polarity protected and short-circuit protected.
- The device can be mounted in Safe area or in Zone 2 / Division 2 areas and is approved for marine applications.
Technical highlights
- Flexible 24 VDC (±30%) supply via power rail or connectors.
- Factory-calibrated measurement ranges.
- Fast response time < 7 ms.
- Excellent signal / noise ratio > 60 dB.
- High galvanic isolation of 2.5 kVAC.
- Inputs and outputs are floating and galvanically separated.
- A green front LED indicates normal operation and malfunction.
- Wide ambient temperature range: -25...+70°C.
Mounting / installation
- The narrow 6.1 mm housing allows up to 163 units per meter.
- Units can be mounted side by side, horizontally and vertically, without air gap on a standard DIN rail, even at 70°C ambient temperature.
- Units can be supplied separately or installed on PR 9400 power rail.
Data sheet & Manuals
Data sheet
- 3103.pdf
- Latest version
Manuals
- 3103V112_EN.pdf
- 3100V111_UK.pdf
- 3100V110_UK.pdf
- 3100V109_UK.pdf
- 3100V108_UK.pdf
- 3100V107_UK.pdf
- 3100V105_UK.pdf
- 3100V100_UK.pdf
- Previous versions
- Latest version
Manuals in Russian
- 3103V112_RU.pdf
- 3100V111_RU.pdf
- 3100V110_RU.pdf
- 3100V109_RU.pdf
- 3100V108_RU.pdf
- 3100V107_RU.pdf
- 3100V106_RU.pdf
- Previous versions
- Latest version
Approvals & Certificates
ATEX certificate
- 3103_issue12.pdf
- Latest version
IECEx certificate
- 3103IEC_issue 11.pdf
- Latest version
UKEX certificate
- 3103UKEX_Issue1.pdf
- Latest version
CCC certificate
- 3000_series_CCC_2025_12.pdf
- 3000_series_CCC_2024_08.pdf
- 3000_series_CCC_2023_04.pdf
- 3000_series_CCC_2020_12.pdf
- Previous versions
- Latest version
FM certificate
- 3xxx_FM17CA0003X_US0004X.pdf
- 3xxx_FM_3041043_C.pdf
- Previous versions
- Latest version
UL certificate
- 3103-09_3117-18_3405.pdf
- Latest version
DNV marine certificate
- DNV_3xxx_TAA00001RW.pdf
- Latest version
EAC declaration
- EAC_EMC_declaration_Ex_3000_5000_6000_9000.pdf
- Latest version
EAC declaration
- EAC_Ex.pdf
- Latest version
Metrology Pattern Approval (MPA), Russia
- MPA_Russia.pdf
- Latest version
Supplementary documentation
EU Declaration of Conformity
- 3103DoC_EU_105_UK.pdf
- 3103DoC_EU_104_UK.pdf
- 3103DoC_EU_103_UK.pdf
- 3103DoC_EU_102_UK.pdf
- 3103DoC_EU_101_UK.pdf
- 3103DoC_EU_100_UK.pdf
- Previous versions
- Latest version
UKCA Declaration of Conformity
- 3103DoC_UKCA_100_UK.pdf
- Latest version
EAC LVD declaration
- 3000_EMC_data.pdf
- Latest version
Safety note
Safety note
View variants
Environmental Conditions
| Operating temperature | -25°C to +70°C |
| Storage temperature | -40°C to +85°C |
| Calibration temperature | 20...28°C |
| Relative humidity | < 95% RH (non-cond.) |
| Protection degree | IP20 |
| Installation in | Pollution degree 2 & meas. / overvoltage cat. II |
Mechanical specifications
| Dimensions (HxWxD) | 113 x 6.1 x 115 mm |
| Weight approx. | 70 g |
| DIN rail type | DIN EN 60715/35 mm |
| Wire size | 0.13...2.5 mm2 / AWG 26...12 stranded wire |
| Screw terminal torque | 0.5 Nm |
| Vibration | IEC 60068-2-6 |
| 2...25 Hz | ±1.6 mm |
| 25...100 Hz | ±4 g |
Common specifications
Supply |
|
| Supply voltage | 16.8...31.2 VDC |
| Max. required power | 0.65 W |
| Max. power dissipation | 0.60 W |
Isolation voltage |
|
| Isolation voltage, test / working | 2.5 kVAC / 300 VAC (reinforced) |
| Zone 2 / Div. 2 | 250 VAC |
Response time |
|
| Response time (0...90%, 100...10%) | < 7 ms |
| Signal / noise ratio | > 60 dB |
| Cut-off frequency (3 dB) | > 100 Hz (1) |
| Signal dynamics, input | Analog signal chain |
| Signal dynamics, output | Analog signal chain |
| Accuracy | Better than 0.05% |
| Temperature coefficient | < ±0.01% of span / °C |
| EMC immunity influence | < ±0.5% of span |
| Extended EMC immunity: NAMUR NE21, A criterion, burst | < ±1% of span |
Input specifications
Current input |
|
| Measurement range | 0...23 mA |
| Input voltage drop | < 1.5 VDC |
| Input resistance | Nom. 20 Ω + PTC 50 Ω |
Output specifications
Current output |
|
| Signal range | 0...23 mA |
| Load (@ current output) | ≤ 600 Ω |
| Load stability | ≤ 0.002% of span / 100 Ω |
| Current limit | ≤ 28 mA |
| of span | = 0...20 mA |
I.S. / Ex marking
| ATEX | II 3 G Ex ec IIC T4 Gc |
| IECEx | Ex ec IIC T4 Gc |
| FM, US | Cl. I, Div. 2, Gp. A, B, C, D T4 or Cl. I, Zone 2, AEx nA IIC T4 |
| FM, CA | Cl. I, Div. 2, Gp. A, B, C, D T4 or Cl. I, Zone 2, Ex nA IIC T4 |
| EAC Ex | 2Ex nA IIC T4 Gc X |
Observed authority requirements
| EMC | 2014/30/EU & UK SI 2016/1091 |
| LVD | 2014/35/EU & UK SI 2016/1101 |
| ATEX | 2014/34/EU & UK SI 2016/1107 |
| RoHS | 2011/65/EU & UK SI 2012/3032 |
| EAC | TR-CU 020/2011 |
| EAC Ex | TR-CU 012/2011 |
Approvals
| ATEX | KEMA 10ATEX0147 X |
| IECEx | KEM 10.0068X |
| UKEX | DEKRA 21UKEX0055X |
| c FM us | FM17US0004X / FM17CA0003X |
| c UL us, UL 61010-1 | E314307 |
| CCC | 2020322310003554 |
| EAC Ex | EAEU KZ 7500361.01.01.08756 |
| DNV Marine | TAA00001RW |