Signal Converters, Isolators & Duplicators
The Series I3 and Series I4 — a complete range of compact, DIN rail mounted signal conditioning modules delivering conversion, isolation, and duplication for every industrial automation need.
- Home
- Products
- Signal Converters, Isolators & Duplicators
At a Glance
Series I3
Series I4
Compact OEM Signal Conditioning
The Series I3 combines signal conversion, isolation, and duplication in a single space-saving DIN rail module — built for reliable performance in demanding automation environments.
Signal Conversion
Converts process signals into standard industrial formats for full compatibility with PLCs, controllers, and monitoring systems.
Signal Isolation
Provides galvanic isolation between input and output to protect sensitive equipment from electrical noise, surges, and ground loops.
Signal Duplication
Replicates a single process signal into multiple outputs for parallel system usage — no signal degradation or cross-interference.
Process Measurement
Supports temperature, resistance, and potentiometer-based industrial inputs across a wide range of sensor types.
Series I3 — Technical Characteristics
| Device Types | Converter · Isolator · Duplicator |
| Signal Compatibility | Process · Temperature · Potentiometer · Resistance |
| Power Supply (Standard) | 18–265 VAC / VDC (isolated) |
| Power Supply (Loop) | Loop Powered (no external supply) |
| Alternate Supply | 24–240 VAC / VDC (±10%) |
| Mounting | Standard DIN Rail |
| Module Width | 22.5 mm |
| Ingress Protection | IP30 |
| Isolation Voltage | 2300 Veff (I3P) · 2000 Veff (I3LP) |
Five Models. Every Signal Need Covered.
From multi-signal converters to loop-powered isolators and dual-channel modules — the I3 series has a purpose-built solution for every panel requirement.
MODEL I3P
Multi-Signal Isolated Signal Converter — wide input compatibility for process, temperature, resistance, and potentiometer signals.
I/O Configuration
4–20mA · 0–10V · TC/RTD · Resistance · Pot
4–20mA or 0–10VDC
Key Features
- Thermocouples K, J, N, E, T, R, S, B + RTDs Pt100/500/1000, Ni100/1000, NTC
- Resistance: 0–2.5 KΩ to 0–100 KΩ; Pot: 500 Ω – 20 KΩ
- Configuration codes — no software required
- Password protection + Force function for signal simulation
- +15 VDC sensor excitation (max 30 mA)
Electrical
18–265V AC/DC
2300 Veff
MODEL I3D
Isolated 4-Way Process Signal Splitter — one input to two fully independent isolated outputs without distortion.
I/O Configuration
4–20mA or 0–10VDC
2× 4–20mA (independent isolated)
Key Features
- Two independent isolated outputs — zero cross-interference
- 1500 VDC isolation between Output 1 and Output 2
- Configuration codes, no software required
- Password protection for secure parameter control
- Fast commissioning for OEM and panel builders
Electrical
24–240V AC/DC
2300 Veff
MODEL I3LP-101
Loop Powered Signal Isolator — pure 4–20 mA isolation with no external power supply required.
I/O Configuration
1× 4–20mA
1× 4–20mA (isolated)
Key Features
- No external power supply needed — true loop-powered
- Eliminates ground loop interference completely
- Protects PLCs, DCS, and field devices
- Ultra-simple installation — fewer failure points
- Ideal for retrofits and new panel builds
Electrical
Loop Powered
2000 Veff
MODEL I3LP-102
Loop Powered Signal Isolator & Duplicator — one input signal to two isolated outputs, no external power needed.
I/O Configuration
1× 4–20mA
2× 4–20mA (isolated)
Key Features
- Isolator + duplicator combined in a single compact module
- No external power — loop powered throughout
- Clean duplication — zero signal distortion
- One sensor feeds multiple PLCs or controllers simultaneously
- Reduced hardware and wiring complexity
Electrical
Loop Powered
2000 Veff
MODEL I3LP-202
Dual Loop Powered Signal Isolator — two independent 4–20 mA channels isolated in a single 22.5 mm module.
I/O Configuration
2× 4–20mA (independent)
2× 4–20mA (isolated)
Key Features
- Two isolators in one compact 22.5 mm module
- Each channel operates independently — no cross-talk
- Loop powered — no external supply for either channel
- Ideal for high-density automation panels
- Half the space of two separate isolators
Electrical
Loop Powered
2000 Veff
Series I4 — Fully Configurable Signal Converters & Isolators
Where I3 handles standard signal tasks reliably, the I4 takes control to the next level — with a display+keypad interface, 3-way isolation, and advanced functions like Force and SOS Mode.
MODEL I4P
Advanced Multi-Signal Isolated Converter with 3-way isolation, fully configurable I/O, and front display interface.
Input Signals
- 4–20 mA (active & passive) / 0–10 VDC
- TC: J, K, N, E, T, R, S, C, B | RTD: Pt100/500/1000, NTC
- Resistance up to 1 MΩ; Potentiometer 250 Ω – 15 KΩ
Output & Advanced
- 4–20 mA or 0–10 VDC output, fully scalable
- Force function for output simulation & commissioning
- SOS Mode — maintains operation during maintenance
- Live display: input, output, %, process value, labels
Electrical
18–265V AC/DC
3000 Veff (3-way)
MODEL I4L
High-Precision Load Cell & Millivolt Signal Converter with built-in excitation and Tare function for weighing systems.
Input Signals
- Millivolt: 0–5 mV to 0–80 mV (11 selectable ranges)
- Bipolar: ±5 mV to ±80 mV (9 ranges)
- Direct load cell connection with built-in +5 VDC excitation
Special Functions
- Tare function — zero calibration for load cells
- Displays: Tare value, mV at terminals, excitation V & current
- Force function for testing & commissioning
- SOS Mode + Custom Messages + Password protection
Electrical
18–265V AC/DC
3000 Veff (3-way)
MODEL I4F
Frequency, Pulse & RPM Signal Converter supporting mHz to MHz range with multi-sensor compatibility.
Sensor Inputs
- NPN, PNP, NAMUR, TTL, Pick-up, Inductive, Reed switches
- Mechanical contacts and push-pull signals
- AC voltage frequency up to 600 VAC (dedicated input)
Frequency Ranges
- 0–1 Hz to 0–1 MHz selectable, resolution 1 mHz
- Covers 0–100 Hz, 0–800 Hz, 0–4 kHz, up to 1 MHz
- Ideal for RPM, flow, turbine, and conveyor monitoring
Electrical
18–265V AC/DC
3000 Veff (3-way)
MODEL I4E
AC/DC Signal Converter & Electrical Measurement Module with True RMS for power monitoring up to 600V/5A.
Input Signals
- AC/DC Voltage: ±600 Vdc / 0–600 Vac down to 50 mV
- AC/DC Current: ±5 Adc / 0–5 Aac down to 5 mA
- Frequency: 45–55 Hz and 55–65 Hz standard ranges
- CT input support and shunt-based current measurement
Key Capabilities
- True RMS measurement for accurate AC signal processing
- Wide input range replaces multiple measuring devices
- Ideal for power panels, generators, and motor monitoring
Electrical
18–265V AC/DC
3000 Veff (3-way)
Model Comparison
Choose the right module for your application at a glance.
| Model | Series | Type | Input | Output | Power | Isolation | Display |
|---|---|---|---|---|---|---|---|
| I3P | I3 | Multi-Signal Converter | mA · V · TC · RTD · Pot · Res | 4–20mA / 0–10V | 18–265V | 2300 Veff | — |
| I3D | I3 | Signal Duplicator | 4–20mA / 0–10V | 2× 4–20mA | 24–240V | 2300 Veff | — |
| I3LP-101 | I3 | Loop Isolator (1:1) | 4–20mA | 4–20mA | Loop Powered | 2000 Veff | — |
| I3LP-102 | I3 | Loop Isolator + Dup. (1:2) | 4–20mA | 2× 4–20mA | Loop Powered | 2000 Veff | — |
| I3LP-202 | I3 | Dual Loop Isolator (2:2) | 2× 4–20mA | 2× 4–20mA | Loop Powered | 2000 Veff | — |
| I4P | I4 | Multi-Signal Converter | mA · V · TC · RTD · Pot · Res | 4–20mA / 0–10V | 18–265V | 3000 Veff (3-way) | ✓ |
| I4L | I4 | Load Cell / mV Converter | mV / Load Cell | 4–20mA / 0–10V | 18–265V | 3000 Veff (3-way) | ✓ |
| I4F | I4 | Freq / RPM Converter | 0.1 Hz – 1 MHz | 4–20mA / 0–10V | 18–265V | 3000 Veff (3-way) | ✓ |
| I4E | I4 | AC/DC Electrical Measurement | V · A · Hz (AC & DC) | 4–20mA / 0–10V | 18–265V | 3000 Veff (3-way) | ✓ |
Industrial Applications
From factory floors to process control panels, the I3 and I4 series are built for any industrial environment where clean, reliable signal management matters.
Factory & Automation
- Industrial automation panels
- OEM machine manufacturing
- Manufacturing plant controls
- PLC and SCADA integration
- System integrator panels
Process & Instrumentation
- Process control systems
- Temperature monitoring
- Electrical & instrumentation panels
- Data acquisition (DAQ)
- Lab testing & calibration
Power & Energy
- Power monitoring systems
- Electrical switchgear panels
- Energy management systems
- Generator & motor monitoring
- CT and shunt measurement
Weighing & Measurement
- Industrial weighing systems
- Tank and silo level measurement
- Conveyor belt weighing
- Batching and packaging systems
- Force and pressure measurement
Motion & Flow
- Motor RPM monitoring
- Conveyor and rotating machinery
- Flow measurement systems
- Turbine and pulse sensors
- Packaging automation lines
Process Industries
- Chemical plants
- Pharmaceutical manufacturing
- Food & beverage processing
- Oil & gas instrumentation
- Retrofit signal standardization