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ABB 3BHE021951R0124 – Analog Input Module (S800 I/O Series)
Product Overview
The ABB 3BHE021951R0124 is an industrial-grade analog input module belonging to the ABB S800 I/O series. It is designed to collect and convert continuous physical signals from field sensors into digital signals, which are then transmitted to PLC or DCS systems. This module solves the problem of inaccurate signal acquisition in harsh industrial environments, providing reliable data support for system control and monitoring in chemical, power, and metallurgical industries. Its robust design ensures stable operation even under electromagnetic interference and extreme temperature conditions.
Technical Specifications — 3BHE021951R0124
| Parameter | Value |
|---|---|
| Product Model | 3BHE021951R0124 |
| Manufacturer | ABB |
| Product Type | Analog Input Module |
| Power | 24V DC ± 10%, 8W rated power |
| Communication / Protocol | S800 I/O Bus, 12Mbps communication rate |
| Operating Temperature | -25°C to 70°C |
| Mounting | 35mm DIN Rail |
| Dimensions (HxWxD) | 120mm × 110mm × 180mm |
| Weight | 0.9 kg |
| Typical Interfaces | 4-20mA, 0-20mA, 0-10V, -10-10V |
| Compliance | CE, IEC, G3 |
ABB 3BHE021951R0124
Key Features and Benefits — 3BHE021951R0124
- 16-channel input with 16-bit resolution and ±0.1% FS accuracy, capturing small signal changes precisely for high-quality control data.
- Photoelectric isolation (2.5kV) between channels and backplane, effectively suppressing electromagnetic and common-mode interference in industrial sites.
- Supports multiple standard analog signals, eliminating the need for additional converters and reducing installation costs.
- Equipped with LED status indicators for each channel, enabling quick fault diagnosis and reducing maintenance time.
- Compatible with other S800 I/O modules, supporting hot swapping (except S800L) and easy system expansion.
Related Models
- 3BHE039203R0101: ABB analog input module, suitable for high-precision signal acquisition in power generation systems.
- 3BHE022333R0101: ABB S800 I/O module, designed for harsh industrial environments with strong anti-interference capability.
- 3BHB030310R0001: ABB power system card, ensuring stable power supply for industrial control modules.
- 3BHB005243R0105: ABB control module, compatible with S800 series for seamless system integration.
Installation and Maintenance — 3BHE021951R0124
- Mount the module on a 35mm DIN rail in a dry, well-ventilated control cabinet, away from high-temperature heat sources and strong electromagnetic equipment.
- Verify signal types match terminal interfaces before wiring to avoid incorrect connections affecting data acquisition.
- Regular maintenance includes checking terminal connections, cleaning dust, and monitoring LED status to ensure normal operation.
- Use hot swapping (for standard S800 I/O) when replacing the module to minimize system downtime.
