Description
The API4380-G by Absolute Process Instruments is a high-performance signal isolator designed to provide robust protection and conversion for industrial process loops.
⚙️ Product Parameters
- Manufacturer: Absolute Process Instruments (API)
- Model Number: API4380-G
- Device Type: Process Signal Isolator / Converter
- Function: Provides electrical isolation between input and output signals to prevent ground loops and instrumentation noise.
- Input/Output Range: Configurable to standard process signals (e.g., 4-20mA, 0-10V).
- Mounting: DIN rail mountable for standard industrial control panels.
- Series: API Industrial Signal Conditioning

🔍 Differences from Similar Models
The API4380 series is engineered specifically for high-accuracy signal conditioning, distinguishing it from standard budget isolators. Key differences include:
- Advanced Isolation: Offers superior galvanic isolation levels, which are critical for protecting sensitive PLC or DCS input cards from voltage spikes.
- Configuration Flexibility: Unlike fixed-range models, this unit typically supports field-selectable ranges via internal switches, allowing it to adapt to various voltage or current signal requirements.
- Compact Footprint: Designed with a slim profile to maximize space efficiency in high-density rack systems compared to older, bulkier signal conditioners.
📋 Recommended Absolute Process Instruments Series Models
If you are looking for complementary signal conditioning equipment, consider these series:
- API4300G (Standard Signal Isolator)
- API4380A (Frequency-to-DC Converter)
- API4000 (DC Signal Splitter)
- API4300 (DC Current/Voltage Isolator)
- API6000 (Transmitter Power Supply)
- API7000 (Alarm Trip)
- API8000 (Mathematics Module)
- API9000 (Signal Loop Protector)
- API5000 (RTD Input Transmitter)
- API5300 (Thermocouple Input Transmitter)
Are you planning to install this isolator in a new control loop to eliminate ground noise, or is this for a replacement project?


