ABB Bailey terminal board NTDI01, NTDI02, NTDI21-A， NTRO02-A， NTRO03， NTRO03-A

ABB's Bailey terminal boards are commonly used in industrial automation and process control systems, especially in conjunction with ABB's DCS (Distributed Control System) or PLC (Programmable Logic Controller). This type of terminal board is mainly used for signal conversion, distribution, and wiring management, ensuring the reliability and safety of electrical connections. The following are its typical characteristics and application descriptions:

Main functions and features

Signal conversion and distribution

Connect signals from field devices such as sensors, actuators, and instruments (such as analog, digital, thermocouple, RTD, etc.) to the control system.

Support signal isolation, amplification, or conversion (such as 4-20mA to RS-485).

Modular design

Adopting a standardized module structure for easy expansion and maintenance.

Support high-density wiring to save control cabinet space.

Terminal block type

Screw terminals, spring clamped terminals or plug-in terminals, suitable for different wire diameters and installation requirements.

Some terminal boards are equipped with fuses, surge protection, or isolation barriers to enhance system safety.

Identification and Traceability

Clear label area for easy labeling of channel numbers, signal types, and equipment names.

Comply with industry standards (such as IEC 61131) to ensure proper wiring specifications.

Environmental adaptability

The materials are mostly flame-retardant engineering plastics or metals, which are resistant to high temperatures and vibrations.

Suitable for harsh industrial environments such as power, chemical, metallurgical, etc.

Typical application scenarios

DCS/PLC system: serves as the interface layer between the control system and on-site equipment.

Power system: used for connecting protection relays and measuring instrument signals in substations and power plants.

Process control: Managing signals such as pressure, temperature, and flow rate in petroleum, chemical, and water treatment industries.

Equipment maintenance: Reduce downtime by quickly disconnecting or testing signals through terminal boards.

advantage

Reliability: ABB terminal boards undergo rigorous testing to ensure long-term stable operation.

Flexibility: Supports multiple signal types and wiring methods to adapt to complex system requirements.

Safety: Built in protection circuit to prevent overvoltage, short circuit, or electromagnetic interference.

Common models:

NTDI01

NTDI02

NTDI21-A

NTRO02-A

NTRO03

NTRO03-A

NTRO04

NTRO04-A

NTRO05-A

NTDO02

BBPR01-1

BBPR01-2

BBPR01-3

BBPR01-4

NTHS03

NTCL01

NTCL01-A

NTST01

TPSTU12-B,C

NTMF01

NTCS04

MFT01

MFT02

NTAI05

NTAI06

NTU-785

NTU-7Q2E

NTRL02B

TU810

PEP-BB

PEP-BA

PEP-BC

PEP-A

PAS02

XCH-PW3

NFTP01

ADP02

SSP-2205B

MMU21

MMU01

MMU22

NTRO05

TPSTU12

NTCS04