Email: sales@runshengdcs.com
WhatsApp / Wechat：+86 15383419322
Phone：+86 15383419322Description
The ABB 3BHB003688R0101 is a SIL 3 certified Enhanced Safety Analog Input Module for ABB’s AC 800M High Integrity systems, representing the next evolution in critical process safety monitoring. Engineered for nuclear, oil/gas, and power generation applications, this module features triple-redundant 24-bit acquisition of 4–20mA/HART signals with industry-leading ±0.035% accuracy, certified to IEC 61508:2010 Edition 2. The 3BHB003688R0101 incorporates ABB’s patented Triple Diversity architecture – combining hardware, software, and timing redundancy – to achieve diagnostic coverage >99.9% while minimizing common-cause failures. With extended -40°C to +85°C operation and seismic qualification (IEC 60068-3-3), it delivers deterministic fault detection <30ms for turbine protection, reactor safety systems, and HIPPS applications where signal integrity prevents catastrophic events.
Integrated cybersecurity includes hardware-based secure boot and encrypted HART 7 passthrough meeting IEC 62443-3-3 SL2. The module’s conformal-coated MIL-spec components withstand corrosive atmospheres, high EMI environments, and vibration loads up to 5g. For brownfield upgrades, the ABB 3BHB003688R0101 offers backward compatibility with existing AC 800M HI racks while providing 40% faster scan rates than previous generations.
ABB 3BHB003688R0101
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | 3BHB003688R0101 |
| Manufacturer | ABB |
| Product Type | Safety Analog Input Module |
| Input Signal | 4–20mA (HART 7 with EDDL) |
| Channels | 8 (triple-diverse redundant) |
| Accuracy | ±0.035% of span |
| Resolution | 24-bit (per channel) |
| Update Rate | 5 ms |
| Isolation | 1500V channel-to-channel, 2500V field-to-system |
| Safety Certification | SIL 3 (IEC 61508 Ed.2), TÜV Rheinland |
| Diagnostic Coverage | >99.9% |
| Operating Temperature | -40°C to +85°C |
| HART Compliance | HART 7.6 (FSK/PSK) |
| Power Consumption | 3.1W @ 24V DC |
| MTBF | >350,000 hours |
| EMC Immunity | 200 V/m (IEC 61000-6-4) |
| Redundancy Sync | Fiber-optic Profisafe (100 Mbps) |
| Dimensions | 118 x 128 x 112 mm (4.65 x 5.04 x 4.41 in) |
Main Features and Advantages
Advanced Safety Architecture:
Triple Diversity design: Three independent measurement chains (ARM Cortex-M7, FPGA, ASIC) with dissimilar algorithms
Hardware-based discrepancy detection <30ms
Automatic fault injection testing during runtime
Cyber-Physical Security:
Hardware root of trust with TPM 2.0 cryptographic module
Encrypted HART tunneling prevents protocol manipulation
Firmware signature verification with secure boot
Operational Excellence:
Autocalibration with NIST-traceable voltage reference
Predictive drift compensation algorithm
Hot-swap capability via ABB SafeSwap tool
Environmental Robustness:
85°C continuous operation (25% higher than R0001)
Corrosion-resistant gold-plated connectors
Seismic qualified per IEEE 344-2004
Application Field
The ABB 3BHB003688R0101 protects critical infrastructure:
Nuclear Power: Reactor pressure vessel level safety channels, emergency core cooling flow verification
Fossil Generation: Turbine overspeed protection, boiler MFT (Master Fuel Trip) systems
Subsea Oil & Gas: HIPPS valve position feedback, ESP pump safety monitoring
Chemical Processing: High-pressure reactor interlocks, toxic gas detection
Hydrogen Production: Electrolyzer safety controls with ATEX Zone 1 compliance
Deployed in SIL 3 safety cabinets for AP1000® nuclear plants and FPSO vessel ESD systems where -40°C Arctic conditions prevail.
ABB 3BHB003688R0101
Related Products
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ABB TA525: SIL 3 Analog Output Module (paired solution)
ABB CI872: PROFINET IRT interface for safety networks
ABB S800 I/O High-Density Baseplate: Mounting platform
ABB 3BSE008517R1: Digital Input Module for trip initiation
ABB 3BHB003688R0102: Cybersecurity-enhanced successor
