ABB TB820V2

Description

Detailed Parameter Table

ABB TB820V2

Product introduction

The TB820V2 is a high-performance terminal base developed by ABB, specifically designed to serve as a secure and efficient interface between S800 I/O modules (such as the TC514V2 3BSE013281R1 temperature controller) and field wiring in industrial automation systems. It acts as a critical junction point, providing mechanical support for the I/O module while facilitating reliable signal and power transmission.

This terminal base features a plug-in design that allows quick and tool-free installation of S800 I/O modules, significantly reducing downtime during maintenance or module replacement. The spring-clamp terminals eliminate the need for screws, ensuring consistent connection pressure and vibration resistance—essential for maintaining signal integrity in dynamic industrial environments like manufacturing plants and chemical facilities.

The TB820V2 integrates seamlessly with the TC514V2 3BSE013281R1, providing a structured wiring solution for temperature sensors (thermocouples, RTDs) and control outputs. When paired with the TU840 terminal unit, it forms a comprehensive wiring system that simplifies cabinet organization and enhances troubleshooting efficiency.

Core advantages and technical highlights

Rapid module replacement

The TB820V2‘s plug-in interface allows S800 I/O modules like the TC514V2 3BSE013281R1 to be installed or removed in seconds, without disconnecting field wiring. In a semiconductor fabrication plant, for example, this feature reduces maintenance time for temperature control modules by up to 80% compared to hardwired systems, minimizing production interruptions.

Vibration-resistant connections

The spring-clamp terminal design of the TB820V2 maintains constant contact pressure, even in high-vibration environments (e.g., near industrial pumps or robotic welders). This ensures stable signal transmission between the TC514V2 3BSE013281R1 and temperature sensors, preventing data loss that could compromise process control accuracy.

Space-efficient design

With a width of just 22.5 mm, the TB820V2 maximizes space utilization in control cabinets. This compact footprint allows for dense packing of I/O modules—critical in applications like automotive assembly lines, where hundreds of I/O points must be accommodated in limited cabinet space. The clear terminal labeling and color-coded markers further streamline wiring and reduce installation errors.

Typical application scenarios

In a chemical processing plant, the TB820V2 is used to mount the TC514V2 3BSE013281R1 temperature controller module in the reactor control cabinet. It terminates wiring from Pt100 RTDs embedded in the reactor vessel, ensuring accurate temperature signals reach the controller. The spring-clamp terminals securely hold the sensor wires, resisting vibration from nearby agitator motors and preventing intermittent readings that could destabilize the reaction.

During a scheduled shutdown, technicians can quickly remove the TC514V2 3BSE013281R1 from the TB820V2 for calibration, leaving field wiring intact. This minimizes rework and ensures the module is reinstalled with correct alignment, thanks to the terminal base’s visual markers. The TB820V2 also connects to the 3BHE009017R0102 power supply, delivering stable 24 V DC to the controller module.

In a food and beverage facility, the TB820V2 supports an AI810 3BSE008516R0001 analog input module monitoring pasteurization temperatures. Its compliance with food safety standards (e.g., resistance to cleaning agents) ensures reliable performance in washdown environments, while the plug-in design simplifies module replacement during peak production periods.

ABB TB820V2

Related model recommendations

• TB820V1: The predecessor to the TB820V2, with similar functionality but slightly different terminal spacing—compatible with older S800 I/O modules.
• TC514V2 3BSE013281R1: Temperature controller module that mounts directly on the TB820V2, leveraging its terminal connections for sensor and actuator wiring.
• TU840: Terminal unit that works alongside the TB820V2in large systems, providing additional wiring points for auxiliary devices.
• AI810 3BSE008516R0001: Analog input module frequently paired with the TB820V2for monitoring non-temperature process variables.
• 3BHE009017R0102: Power supply module that connects to the TB820V2to provide 24 V DC power to mounted I/O modules.
• V17111-110: Screw-clamp terminal block used in conjunction with the TB820V2for wiring expansion in complex systems.
• TK801V006 3BSC950089R2: Communication module whose auxiliary wiring can be terminated via the TB820V2in integrated control setups.

Installation, commissioning and maintenance instructions

Installation preparation

Before installing the TB820V2, ensure the control cabinet is clean and de-energized. The ambient temperature must be within -40°C to +70°C, with relative humidity below 95% (non-condensing). Required tools include a wire stripper (set to 8 mm), small flat-head screwdriver (for terminal release), and torque wrench (0.5-0.7 Nm).

Mount the TB820V2 on a 35 mm DIN rail, ensuring it clicks securely into place. Leave at least 5 mm of space between adjacent terminal bases for wiring access. Strip field wires to 8 mm, then insert into the spring-clamp terminals—activate the clamp release lever with a screwdriver for easy insertion. Connect power wires (24 V DC) to the designated terminals, verifying polarity to avoid damage to modules like the TC514V2 3BSE013281R1.

Maintenance suggestions

For daily maintenance of the TB820V2, visually inspect for loose wires, damaged terminal levers, or signs of overheating (discolored plastic). Check that the mounted I/O module is fully seated—misalignment can cause intermittent connections.

Quarterly, verify terminal torque using a torque wrench and re-tighten if necessary. Clean the terminal base with compressed air to remove dust; avoid liquids that could degrade insulation. When replacing the TB820V2, transfer wires one at a time to the new unit to prevent wiring errors. Always use genuine ABB replacement parts to maintain compatibility with S800 I/O modules.

In corrosive environments (e.g., coastal facilities), inspect monthly for terminal corrosion and treat with anti-corrosion spray if needed. Replace any terminals showing signs of rust to ensure reliable conductivity.

Service and guarantee commitment

The TB820V2 comes with a 3-year warranty from ABB, covering defects in materials and workmanship under normal operating conditions. This warranty ensures replacement or repair of faulty units at no cost, minimizing operational disruptions.

ABB’s technical support team provides expert guidance on installation best practices, compatibility with S800 I/O modules like the TC514V2 3BSE013281R1, and troubleshooting connection issues. We offer detailed wiring diagrams and mounting templates to simplify integration into existing systems.

Extended service contracts are available, including annual inspections and priority support, to maximize the TB820V2‘s lifespan. ABB’s global distribution network ensures rapid delivery of replacement units, reducing downtime in critical applications. Trust the TB820V2 to deliver reliable performance as the foundation of your S800 I/O system.