Isolated 20mA splitter AC-20mA-2
Isolated 20mA splitter AC-20mA-2
Features & Specification
Key Features
- Dual-Channel Current Loop Splitting: Splits a single 0/4–20 mA input into two independent, mutually isolated 0/4–20 mA outputs
- Multi-Port Galvanic Isolation: Up to 1,500 V RMS isolation barrier between input, output 1, output 2, and power supply
- True Analog Signal Architecture: Pure analog splitter preserves signal integrity and waveform dynamics with zero digital reconstruction latency
- Independent Load Driving: Each isolated current output channel drives loop resistances up to 500 Ω independently
- Fast Dynamic Response: Rapid ≤ 10 ms step response (0–90% TYP) for precision real-time process monitoring and control
- Ground Loop Elimination: Breaks electrical ground loops between shared field sensors and multiple receiving devices (PLC, DCS, local display)
- High Linear Accuracy: Precision calibration achieving 0.1% Full Scale accuracy
- Compact DIN Rail Design: Space-efficient 35 mm DIN rail mountable industrial housing (110 mm × 47 mm × 25 mm)
- 1-Year Warranty: Fully covered by a 1-year factory warranty against manufacturing defects
Ordering Information
| Product Code | Description |
|---|---|
| AC-20mA-2 | Isolated 20mA splitter AC-20mA-2 |
| AC-420-420 | Signal Isolator 4 20ma |
| SPD-20MA | 4-20mA Surge Protection Device SPD 4 to 20mA |
| USS20M24V-D | Current Source Simulator 0/4 to 20mA |
| USS20M24V-2P | Dual Output Current Source Simulator 0 to 20mA |
Applications
- Dual-Receiver Monitoring: Splitting a single 4–20 mA process transmitter signal simultaneously to a PLC/SCADA system and a local panel meter or paperless recorder.
- Redundant Control Systems: Feeding primary and backup automation controllers from a single critical field instrument.
- Industrial Automation & Process Control: Reliable signal interfacing and device connectivity across automated production lines.
- Ground Loop Elimination: Resolving common-mode voltage differences between control rooms and field instrumentation.
- Control Panel Building: Compact 35 mm DIN rail mounting for clean and space-efficient cabinet wiring.
Specifications
| Parameter | Value |
|---|---|
| Mounting Type | 35 mm DIN Rail Mounting |
| Dimensions | 110 mm x 47 mm x 25 mm (L x W x H) |
| Enclosure Material | Industrial ABS plastic |
| Operating Temperature | -20 °C to +55 °C |
| Storage Temperature | -40 °C to +85 °C |
| Relative Humidity | 5% to 95% RH (non-condensing) |
Electrical Specifications
| Parameter | Specification |
|---|---|
| Power Supply | 24V DC (15 ~ 28V DC) |
| Operating Current | 100 mA @ 24V DC |
| Conversion Accuracy | 0.1% of Full Scale @ 25 °C |
| Temperature Drift | < 100 ppm / °C |
| Galvanic Isolation | 1,000 V RMS (Input / Output) |
Input/Output Specifications
| Parameter | Value |
|---|---|
| Input Signal Range | 0–20 mA / 4–20 mA DC (1 Channel) |
| Output Signal Range | Dual 0–20 mA / 4–20 mA DC (Channels 1 & 2, Load <= 500 Ω each) |
| Response Time | < 1 ms |
Isolation & Protection Specifications
| Parameter | Value | Standard / Notes |
|---|---|---|
| Galvanic Isolation | 4,250 V RMS | Between Input & Outputs |
| Galvanic Isolation | 1,500 V RMS | Between Input & Aux. Supply |
| Galvanic Isolation | No isolation | Between Outputs & Aux. Supply |
| Reverse Polarity Protection | Integrated | Protects internal circuitry against reverse DC wiring |
| Transient Clamping | 600W TVS | Surge and spike suppression across all ports |
Mechanical Dimensions
Terminal Details & Wiring
Pluggable industrial screw terminal block connections:
- Terminal 18 (IN+) / Terminal A2 (IN-): Single 0/4–20 mA DC Analog Input
- Terminal 15 (OP1+) / Terminal 26 (OP1-): Isolated Analog Output Channel 1 (0/4–20 mA DC)
- Terminal 16 (OP2+) / Terminal 28 (OP2-): Isolated Analog Output Channel 2 (0/4–20 mA DC)
- Terminal A1 (V+) / Terminal 25 (GND): 24V DC Auxiliary Power Supply
Wiring Diagrams
Note: All images and connection diagrams shown are for illustrative purposes only and may differ from the actual product.
Revision History
| Revision | Date | Description of Change |
|---|---|---|
| Rev 1.0 | 2026-09-09 | Initial datasheet release for AC-20mA-2 |
Get the latest version of this datasheet : click here..
Support
Website: www.veawe.io
Email: info@veawe.io