ABB TB807 3BSE008535R1 ModuleBus Terminator S800 I/O

Product Description

The TB807 (Part Number: 3BSE008535R1) is a high-reliability ModuleBus Terminator designed for the ABB S800 I/O system architecture. While often categorized generally in temperature sensing contexts, the TB807's critical engineering function is to provide the required electrical impedance matching and termination for the ModuleBus. This ensures high-speed, noise-free data communication between the central AC 800M controller and the distributed S800 I/O clusters.

Engineered to meet ABB’s stringent industrial standards, the TB807 3BSE008535R1 prevents signal reflection on the ModuleBus backplane, which is essential for maintaining deterministic process control data integrity. It is typically installed at the end of a ModuleBus string. Its robust design is built for continuous operation in demanding environments, including power plants and petrochemical facilities, where electromagnetic interference and thermal stability are primary concerns.

Detailed Technical Specifications

The TB807 is a foundational component for ensuring S800 I/O communication stability.

• Manufacturer: ABB

• Model Number: TB807

• Part Number: 3BSE008535R1

• Product Type: ModuleBus Terminator

• System Compatibility: ABB S800 I/O, AC 800M Controllers

• Electrical Impedance: Matched for standard ModuleBus signaling

• Power Supply: 24 VDC (Loop-powered/System-derived)

• Operating Temperature: -40°C to +85°C (-40°F to +185°F)

• Ambient Temperature: -40°C to +85°C (-40°F to +185°F)

• Housing Material: High-grade industrial polymer or aluminum (configuration dependent)

• Ingress Protection: IP20 (Standard for cabinet-mounted electronics)

• Mounting: Direct connection to the S800 I/O bus end-station or MTU

• Dimensions: 130 mm x 75 mm x 65 mm

• Weight: 0.6 kg

• Certifications: CE, ATEX, IECEx, SIL2 Compliant (System certified)