$ 134.78
Weidmuller ACT20P-CI-2CO-S signal isolator with dual 4–20 mA outputs, high accuracy, galvanic isolation, and HART compatibility for industrial automation.
The Weidmuller ACT20P-CI-2CO-S signal isolating amplifier is a precision interface module designed to duplicate and electrically isolate analog current signals in industrial automation systems. It accepts standard 0–20 mA or 4–20 mA inputs and delivers two independent current outputs, enabling one field signal to be shared reliably between multiple control or monitoring devices. With full galvanic separation between input, output, and power supply, this module effectively mitigates grounding issues, electrical interference, and signal distortion in demanding industrial environments.
In real-world control cabinets and process plants, the ACT20P-CI-2CO-S improves signal reliability while simplifying system architecture. Its high accuracy and fast response ensure stable transmission of measurement data to PLCs, DCS platforms, or logging systems. Transparent handling of digital communication on the current loop allows diagnostics and device checks without interrupting normal operation. The slim DIN-rail housing supports space-efficient panel design, while the fixed configuration and robust isolation concept help reduce commissioning time, maintenance effort, and long-term operational risk.
Why Weidmuller ACT20P-CI-2CO-S?
The Weidmuller ACT20P-CI-2CO-S stands out as a dependable choice when a single analog signal must be shared without compromise. It combines high measurement accuracy, fast signal response, and robust multi-level isolation in a slim DIN-rail format. By maintaining signal integrity while protecting connected equipment, it allows control engineers to design cleaner, safer, and more scalable automation systems with confidence.
What problem does it solve?
In many industrial systems, one sensor output needs to feed multiple controllers, recorders, or safety systems, often leading to grounding conflicts, noise, or distorted readings. The ACT20P-CI-2CO-S eliminates these risks by electrically isolating and precisely duplicating the current signal, ensuring each connected device receives a stable, interference-free measurement without affecting the original source.
| Feature | Details | Benefit |
|---|---|---|
| Analog Signal Type | 0–20 mA / 4–20 mA current input | Compatible with standard industrial transmitters and sensors |
| Dual Current Outputs | 2 × 0–20 mA or 2 × 4–20 mA outputs | One signal can be reliably distributed to two independent systems |
| Signal Function | Signal isolator and distributor | Enables safe signal sharing without loading or distortion |
| Galvanic Isolation | 4-way isolation between input, outputs, and power supply | Prevents ground loops, noise coupling, and equipment damage |
| Accuracy | < 0.1% of full-scale value | Ensures precise and stable process measurements |
| Response Time | ≤ 0.5 ms | Supports fast-changing process signals without delay |
| HART Compatibility | Transparent HART signal forwarding | Allows diagnostics and parameter access without interrupting control |
| Sensor Support | 2-wire, 3-wire, and 4-wire sensors | Flexible integration with a wide range of field devices |
| Supply Voltage | 20–30 V DC | Suitable for standard 24 V control cabinets |
| Output Load Capability | < 300 Ω | Reliable operation with typical PLC and DCS inputs |
| Power Consumption | ≤ 1.8 W | Energy-efficient operation with minimal heat generation |
| Mounting Method | TS 35 DIN rail | Quick installation and clean panel layout |
| Housing Width | 12.5 mm | Ideal for high-density control cabinets |
| Operating Temperature | –20 °C to +60 °C | Stable performance in harsh industrial environments |
| Protection Rating | IP20 | Designed for protected control panel installation |
| Compliance & Approvals | RoHS compliant, industrial EMC standards | Meets regulatory and reliability requirements |
Download Weidmuller ACT20P-CI-2CO-S (7760054115) Datasheet
| Commercial Data | Details |
|---|---|
| EAN Number | 6944169656569 |
| Net Weight | 157 g |
1. Dual-System Signal Sharing in Process Control
In process industries such as chemical production or water treatment, a single flow or pressure transmitter often needs to serve both a local PLC and a supervisory control system. Directly splitting the current loop can introduce loading effects or unstable readings. The ACT20P-CI-2CO-S resolves this by accurately duplicating the 4–20 mA signal into two isolated outputs. Each control system receives an identical, stable signal without influencing the other, while galvanic isolation protects against grounding differences and electrical interference during continuous operation.
2. Noise Reduction for Long-Distance Signal Transmission
Large manufacturing plants frequently run analog signals over long cable distances near motors and power equipment. These conditions can distort measurement values when signals are connected to multiple devices. By isolating and regenerating the current loop, the ACT20P-CI-2CO-S prevents noise from passing between field instruments and control electronics. Its fast response ensures that rapid process changes remain visible to operators, while the narrow housing allows installation in existing panels without expanding cabinet space.
3. Safe Interface Between Field Instruments and Control Rooms
In installations involving flammable gases or sensitive materials, measurement signals often cross boundaries between hazardous and non-hazardous areas. The ACT20P-CI-2CO-S provides strong electrical separation between sensor inputs, power supply, and outputs, reducing the risk of fault propagation. This allows the same measurement to be used for both standard control and independent monitoring systems. The result is improved operational safety without sacrificing signal accuracy or system availability.
4. Parallel Data Feed for Control and Performance Analysis
Modern industrial facilities increasingly rely on both real-time control and long-term data analysis. A single level or temperature transmitter may need to feed a PLC for regulation and a data acquisition system for optimization. The ACT20P-CI-2CO-S enables this parallel data flow without affecting sensor performance. High measurement accuracy ensures reliable analytics, while the maintenance-free design supports continuous monitoring strategies aimed at efficiency improvement and predictive maintenance.
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