ABB TU814V1 3BSE013233R1 Compact Module Termination Unit

​ABB TU814V1 3BSE013233R1 Compact Module Termination Unit

5. 1. Product Description​
   The ABB TU814V1 3BSE013233R1 is an enhanced compact module termination unit tailored for ABB AC 800M Distributed Control Systems (DCS), designed to address medium-scale wiring needs in space-constrained control cabinets. It acts as a centralized wiring interface between AC 800M I/O modules (e.g., AI801, DI803, DO802) and field devices (sensors, actuators), enabling secure transfer of both signal and power. Compared to the TU812V1, it features more terminals while maintaining the ultra-compact form factor—striking a balance between wiring capacity and space efficiency. The unit is equipped with anti-loosening screw-type terminals, flame-retardant insulation, and clear terminal numbering, ensuring reliable signal transmission, easy wiring identification, and simplified maintenance. With seamless compatibility with AC 800M module pinouts and DIN rail mounting, it is ideal for small-to-medium control cabinets requiring higher terminal density (e.g., mixed analog/digital I/O layouts, multi-device control loops).​
   2. Detailed Parameters​
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   Parameter Category​	Specifications​
   Model Number​	TU814V1 (Order Code: 3BSE013233R1)​
   Terminal Type​	Screw-type terminal blocks (copper conductor dedicated, anti-loosening thread design)​
   Number of Terminals​	32 terminals (16 pairs for signal/power dual-purpose wiring; 8 more than TU812V1)​
   Rated Voltage​	300 V AC/DC (max)​
   Rated Current​	12 A per terminal (continuous operation); 20 A (short-term, ≤10s)​
   Conductor Size​	0.14 - 2.5 mm² (solid/stranded copper wire; ferrule mandatory for stranded wire ≥1.5 mm²)​
   Insulation Material​	Polyamide 66 (PA66), flame-retardant (UL94 V-0), anti-aging, corrosion-resistant​
   Operating Temperature​	-40°C to +85°C​
   Dimensions (W×H×D)​	35 × 120 × 55 mm (only 30mm longer than TU812V1, 25% smaller than standard 32-terminal units)​
   Mounting Method​	DIN rail mounting (compatible with standard 35 mm DIN rails, EN 50022)​
   Compatibility​	ABB AC 800M series I/O modules (AI801, DI803, DO802, AO801, AO890)​
   Certification​	CE, UL, IEC 60947-1 (industrial safety), IEC 60664-1 (insulation coordination), RoHS​

    

    

    

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   3. Advantages & Features​
   1. High-Density Compact Design: 32 terminals in a 35×120×55 mm form—30mm longer than TU812V1 but 25% smaller than standard 32-terminal units, solving space constraints for medium-scale wiring.​
   2. Enhanced Wiring Versatility: 16 signal/power pairs support mixed analog (e.g., 4-20mA) and digital (e.g., 24V DC) wiring, adapting to multi-type I/O module layouts (e.g., 1 AI801 + 1 DI803 per unit).​
   3. Reliable Anti-Loosening Terminals: Thread-locking structure prevents terminal screws from loosening due to industrial vibration (e.g., near motors, compressors), reducing 90% of contact failure risks.​
   4. Seamless AC 800M Integration: Pre-matched with AC 800M I/O module pin definitions (e.g., AI801’s channel isolation pins), no adapter cables needed—wiring efficiency improved by 40% vs. non-matched terminals.​
   5. Durable Industrial Performance: PA66 insulation resists aging (service life ≥10 years at 60°C) and corrosion (salt spray resistance ≥500 hours), suitable for harsh environments like coastal plants, steel mills.​
   4. Application Fields​
   • Mixed I/O Control Cabinets: Used in cabinets with both analog and digital modules (e.g., 1 AI801 + 1 DI803) for food processing lines, where 32 terminals cover all signal/power needs without extra units.​
   • Medium-Scale Automation Equipment: Deployed in plastic injection molding machines, small turbines—connecting temperature sensors, pressure transmitters, and solenoid valves via 1-2 TU814V1 units.​
   • Dense Module Racks: Applied in AC 800M module racks with 4-5 I/O modules (e.g., 2 DI803 + 2 DO802), reducing cabinet width by 20% vs. using standard terminals.​
   • Harsh Environment Medium-Scale Control: Used in coastal wastewater treatment plants, offshore platform auxiliary cabinets—withstanding salt spray and humidity while maintaining wiring stability.​
   5. Precautions​
   1. Conductor Material: Strictly use copper conductors; aluminum-copper transition joints are prohibited—avoiding galvanic corrosion and contact resistance overheating.​
   2. Torque Precision: Tighten screws to 0.6-1.0 N·m (use torque screwdriver); over-tightening damages terminal threads, under-tightening causes virtual connections.​
   3. Current Load Balance: Do not concentrate high-current loads (e.g., 10A+ actuators) on adjacent terminals; leave 1 empty terminal between ≥8A loads to prevent local overheating.​
   4. Vibration Reinforcement: In high-vibration scenarios (e.g., mechanical workshops), use DIN rail clips to fix the unit and cable ties to secure wire bundles—preventing terminal stress from wire pulling.​
   5. Environmental Protection: In dusty/humid environments, install a cabinet with IP54+ protection and silica gel desiccants; clean terminals with a dry brush every 6 months to avoid dust accumulation.​
   6.