The ABB FPNO-21 is an overvoltage protection device designed for sensitive measuring and control circuits. Specifically, it is a combined voltage limiter that safeguards instrumentation and low-voltage control lines (such as 4-20 mA, 0-10 V signals, or telecom/data lines) against transient overvoltages induced by lightning strikes, switching operations, or electrostatic discharge.

The ABB ZlNT-571 is a 9-pole signal interface and isolation relay module belonging to the ABB ZlNT product series. It is designed for industrial automation and control systems to provide electrical isolation, signal conversion, and contact multiplication between field devices (like sensors, switches) and control systems (like PLCs, DCS, or relays).

The ABB PSPCB-CP-2 is a Surge Protective Device (SPD) Module designed for Commercial and Industrial (C&I) Applications. It is a Compact, Plug-in Cartridge that provides Type 2 / Class C protection against transient overvoltages caused by indirect and direct lightning effects, as well as switching surges within electrical installations.

The ABB 1SFB536271A1008 is a PROFIBUS DP-V1 communication interface module specifically designed for ABB PSR series soft starter combination units. This plug-in accessory enables seamless integration of PSR soft starters into PROFIBUS DP industrial automation networks, allowing for remote control, monitoring, and diagnostics through a standardized fieldbus interface.

The ABB 1SFB536268D1008 is a specialized interface or configuration module designed for ABB's modular low-voltage motor control and protection systems. This specific part number identifies a dedicated accessory that adds critical functionality—most commonly communication interfacing or application-specific configuration—to compatible ABB devices such as motor protective relays, soft starter combinations, or intelligent motor starters.

The ABB UL-740A-R2A-B024-021 is a dedicated redundant power supply module designed for the ABB Symphony Harmony/Melody and S800 I/O distributed control systems (DCS). This unit provides reliable, redundant DC power to critical control system components, ensuring continuous operation and high availability in industrial automation environments such as power plants, oil refineries, and chemical processing facilities.

The ABB PSE142-600-70 is a microprocessor-based electronic motor starter that integrates soft-start functionality, comprehensive motor protection, and control logic into a single compact device. Part of ABB's PSE series, it replaces traditional electromechanical starting solutions by providing smooth, controlled acceleration and deceleration of three-phase AC induction motors up to 75 kW. This reduces mechanical stress on driven equipment while limiting inrush current on the electrical supply.

The ABB PSTX170-600-70 is a robust, medium-voltage soft starter engineered for the controlled acceleration and deceleration of large three-phase induction motors. As part of ABB's advanced PSTX series, it utilizes sophisticated thyristor technology and intelligent control algorithms to significantly reduce mechanical stress on driven equipment and minimize electrical disturbances on the power supply network during motor starts. This unit is designed for reliability in demanding industrial environments.

The ABB PSTB1050-600-70 is a high-power, heavy-duty medium-voltage soft starter from ABB's PSTB series, designed for the controlled starting and stopping of very large three-phase induction motors. This advanced unit utilizes thyristor technology to provide smooth, stepless acceleration and deceleration, dramatically reducing the mechanical and electrical stresses associated with direct-on-line (DOL) starting. It is engineered for the most demanding industrial and infrastructure applications where motor and driven equipment protection, power quality, and operational reliability are paramount.

The ABB PSE85-600-70 is a microprocessor-based electronic motor starter that integrates soft-start capability, comprehensive motor protection, and control functions into a single, compact unit. Part of ABB's PSE series, it is designed to replace traditional electromechanical starting methods (such as Star-Delta starters) by providing smooth, controlled acceleration and deceleration of three-phase AC induction motors. This reduces mechanical stress on the motor, coupling, and driven equipment while limiting inrush current on the electrical supply.