AI801 Analog Input Module – 8-Channel Current Input
ABB | 3BSE020512R1 | S800L Series
Industrial-grade 8-channel analog input module for 0…20 mA and 4…20 mA signals. Single-ended unipolar inputs with group isolation from ground. Built-in PTC resistor protects each channel against short circuits up to 30 V d.c. Supports HART communication on the input side. Detachable connectors simplify process and power wiring. Designed for harsh environments with full certification suite.
Key Technical Specifications
| Brand | ABB |
| Model | AI801 (3BSE020512R1) |
| Series | S800L |
| Channels | 8, single-ended unipolar |
| Input signal | 0…20 mA / 4…20 mA d.c. |
| Resolution | 12 bit |
| Input impedance | 230 – 275 kΩ (incl. PTC) |
| Shunt resistor | 250 Ω (PTC included) |
| Overrange | 0% to +15% |
| Accuracy (error) | ≤ 0.1% |
| Temp. drift | Typ. 50 ppm/°C, max 80 ppm/°C |
| Input filter rise time | 180 ms (0-90%) |
| Update cycle | 1 ms per channel |
| NMRR @ 50/60 Hz | > 40 dB |
| Max field cable length | 600 m (656 yd) |
| Max non-destructive input | 30 V d.c. |
| Isolation | Group isolated from ground |
| Rated insulation voltage | 50 V |
| Dielectric test voltage | 500 V a.c. |
| Power dissipation | 1.1 W |
| Current consumption | +5 V: 70 mA; +24 V ext: 30 mA |
| Wire size (solid) | 0.05 – 2.5 mm² (30-12 AWG) |
| Wire size (stranded) | 0.05 – 1.5 mm² (30-12 AWG) |
| Stripping length | 6 – 7.5 mm (0.24 – 0.30 in) |
| Torque | 0.5 – 0.6 Nm |
Environmental & Certification
- Operating temp: 0 to +55 °C (+32 to +131 °F) – approvals at +5 to +55 °C
- Storage temp: -40 to +70 °C (-40 to +158 °F)
- Humidity: 5 – 95% non-condensing
- Protection class: IP20 (IEC 60529)
- Pollution degree: 2 (IEC 60664-1)
- Corrosion: ISA-S71.04 G3
- CE, UL 61010-1, EN 61010-2-201
- Hazardous locations: C1 Div 2 cULus, C1 Zone 2 cULus, ATEX Zone 2
- Marine: ABS, BV, DNV, LR
- EMC: EN 61000-6-4 & EN 61000-6-2
- RoHS & WEEE compliant
Diagnostics & Status Indication
Front LED indicators show Status (Run/Fault), Module Error, Module Warning, and Channel Error. Supervision provides real-time module and channel health. Quick fault identification reduces downtime.
Installation & Maintenance Convenience
- Detachable connectors for process and power – tool-free wiring.
- Vertical mounting supports up to 40 °C ambient; horizontal up to 55 °C.
- PTC protection eliminates external fuses on each channel.
- HART transparency allows digital communication without extra hardware.
- Compact S800L form factor (86.1 x 58.5 x 110 mm, 0.24 kg).
- Compatible with standard DIN-rail mounting (IEC 60715).
Compatibility & System Integration
Works with ABB S800 I/O and AC 800M controllers. Non-redundant, non-intrinsically safe, but fully isolated. Supports Modbus and PROFIBUS via system bus. Field cable length up to 600 m with proper shielding.
Typical Applications
- Process measurement (pressure, level, flow) with 4-20 mA transmitters.
- PLC/DCS analog input expansion in oil, gas, chemical, and power plants.
- Retrofit of legacy systems requiring 0-20 mA or 4-20 mA signals.
- Marine and offshore control cabinets (DNV, ABS, LR approved).
- Hazardous area zone 2 / Class I Div 2 installations.
FAQ – Quick Answers
Q: Does AI801 support HART?
A: Yes, it withstands HART communication on the input side.
Q: What is the input resistance?
A: 250 Ω including the internal PTC resistor.
Q: Can I short the input to 24 V?
A: Yes, it is protected up to 30 V d.c. without damage.
Q: Is this module redundant?
A: No, it is a non-redundant single-ended input module.
Q: What is the update cycle?
A: 1 ms per channel, very fast for control loops.
Q: Which cable length is supported?
A: Maximum 600 meters with proper wire gauge.
Why Buy From Oiltech Controls?
- 15+ years focused on industrial automation spare parts.
- Global delivery – we ship worldwide via FedEx, UPS, DHL.
- All products are tested (surplus / refurbished) before shipment.
- 12-month warranty on every module.
- Technical verification and configuration support before shipping.
- We support obsolete control systems with hard-to-find parts.
Contact us for inquiries:
Email: info@oiltechcontrols.com
WhatsApp / Phone: +86 158 8020 0923
Package includes: AI801 module, detachable connectors, and user manual (digital).
Warranty: 12 months against manufacturing defects.
Shipping: FedEx, UPS, or DHL – tracking provided.
Copyright © 2026 Oiltech Controls Limited. All rights reserved.
Original Source: https://www.oiltechcontrols.com/
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