Description
ABB 3BSE013220R1 – S800 I/O Terminal/Base Unit for 800xA / AC 800M Installations
The ABB 3BSE013220R1 is commonly referenced within the ABB S800 I/O family as a terminal/base unit (TU-series). In practical terms, it’s the piece that hosts an S800 I/O module and provides the field wiring terminals, ModuleBus backplane connection, and power distribution. From my experience, plants use this type of unit to keep wiring tidy and serviceable while maintaining high channel density in 800xA and AC 800M systems.
One thing I appreciate is how these TUs simplify change-outs: you typically remove the I/O module without disturbing the field wiring. For maintenance teams, that’s a big deal—less downtime, fewer wiring errors. A maintenance supervisor told us they swapped a faulty I/O module seated on this style of TU in under ten minutes, no re-termination needed.
Order Placement Process and Guarantees
- Warranty: 365 days
- Delivery: 1 week if in stock; no more than one month at the latest
- Payment: 50% advance; full payment prior to delivery
- Express options: FedEx, UPS, DHL
Key Features
- DIN-rail terminal/base unit – Hosts an ABB S800 I/O module and provides robust field terminal points.
- ModuleBus backplane connection – Integrates into the S800 I/O ModuleBus, typically used with AC 800M and 800xA.
- Service-friendly design – I/O module can be replaced without removing the field wiring, which cuts downtime.
- Signal-agnostic wiring – Supports the seated module’s signal type (DI, DO, AI, AO, HART), making it versatile in mixed cabinets.
- Clear marking and keying – Keying and labeling typically reduce the risk of inserting the wrong module.
- Cabinet-ready – IP20; designed for use inside control cabinets with proper ventilation and protection.
Technical Specifications
| Brand / Model | ABB 3BSE013220R1 (S800 I/O terminal/base unit) |
| HS Code | 8538.90 (Parts suitable for apparatus of 8535/8536/8537) |
| Power Requirements | 24 VDC distribution via S800 ModuleBus; consumption depends on the installed I/O module |
| Operating Temperature | Typically -20 to +55 °C when installed in a compliant cabinet |
| Signal Input/Output Types | Analog, Digital, and HART (depends on seated S800 I/O module such as AI/DI/DO/AO) |
| Communication Interfaces | S800 I/O ModuleBus connection; no external fieldbus on the terminal unit itself |
| Installation Method | 35 mm DIN-rail (EN 50022); IP20, cabinet installation required |
| Form Factor | S800 TU family footprint (compact base with terminal blocks and module guide) |
Related or Supporting Products
- TU810 / TU812 / TU814 – Alternative S800 terminal units with different terminal layouts or redundancy features; choose based on channel count and cabinet space.
- AI810, AI801, AO810, DI810, DO810 – Common S800 I/O modules seated on the TU; signal type and channel density vary by module.
- CI854A (PROFIBUS), CI851 (PROFIBUS DP-V1) – Communication interfaces to link S800 I/O to fieldbuses via AC 800M.
- TB820V2 / Fiber/metallic ModuleBus extenders – For extending S800 ModuleBus between cabinets or distant I/O islands.
- SD8xx series power distribution – For clean 24 VDC supply to the I/O cluster; helps stabilize noisy panels.
Installation & Maintenance
- Mount on 35 mm DIN-rail inside a closed cabinet; follow ABB’s clearances for ventilation around the modules.
- Use segregated wiring for analog, digital, and high-voltage lines; shielded cables for low-level analog/HART where applicable.
- Grounding: bond shield/drain wires as per site EMC practice; keep ModuleBus cabling lengths and topology within ABB guidelines.
- Power: stable 24 VDC with proper overcurrent protection; avoid sharing noisy drives’ rails without filtering.
- Safety: de-energize before inserting/removing I/O modules; verify correct keying to prevent module mismatch.
- Routine checks: tighten terminal screws during planned shutdowns; inspect for discoloration, dust buildup, and loose shielding clamps.
- Lifecycle: when firmware updates apply to the seated I/O module, schedule them during maintenance windows; the TU itself is passive, so updates aren’t needed on the base.
Quality & Certifications
- Typically conforms to CE and RoHS requirements for industrial control equipment.
- Many S800 components carry UL/cUL recognition; check the specific labeling on your unit.
- Manufactured under ISO 9001 quality systems by ABB.
- Standard warranty: 12 months (365 days) from shipment.
You might notice that cabinet environments, wiring discipline, and grounding practice make more difference here than any spec line. In many cases, a simple check on shielding and rail bonding cleans up troublesome analog noise without touching the I/O modules at all.
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