ABB Bailey NTHS03 Hydraulic Servo Termination Unit

Description

The ABB NTHS03 is a specialized termination assembly designed to bridge field-side hydraulic components with the Bailey INFI 90 and Symphony Plus distributed control systems. This unit provides a robust physical interface for connecting servo valve coils and feedback sensors, such as LVDTs and RVDTs, to the system's control logic. It is specifically engineered to handle the high-precision signal requirements of turbine governor systems and heavy-duty positioning actuators. By providing organized screw-terminal connections and integrated signal routing, the NTHS03 ensures the electrical stability necessary for critical hydraulic loop performance in power plants and industrial facilities.

Specifications

• Brand: ABB Bailey

• Model Number: NTHS03

• Product Series: INFI 90 / Symphony Plus

• Application: Hydraulic Servo Loop Termination

• Feedback Support: Compatible with LVDT and RVDT position sensors

• Mounting: Standard N-type Termination Unit Base

• Interface: Multi-pin connector for IMHSS series modules

• Connection Type: Heavy-duty screw terminals for field wiring

• Operating Temperature: 0 to 70 degrees Celsius

• Relative Humidity: 5% to 95% (non-condensing)

Features

• Dedicated Servo Interface: Engineered specifically for the complex wiring requirements of hydraulic positioning and valve control.

• Signal Integrity Management: Features on-board pathways designed to minimize electromagnetic interference and signal attenuation in sensitive feedback loops.

• Streamlined Maintenance: Individual field wires remain permanently landed on the unit, allowing for the rapid replacement of control modules without re-wiring.

• Dual Feedback Channel Support: Accommodates redundant sensor wiring to enhance system reliability and process safety.

• Passive Safety Architecture: Utilizes high-reliability passive circuitry to maintain signal continuity without requiring secondary local power.

• Durable Industrial Design: Built to withstand the harsh thermal and vibration profiles typically found in steam and gas turbine environments.