The ABB SACE Emax PR121/P is a trip unit / protection release designed for use with ABB SACE Emax series low-voltage air circuit breakers. It is a microprocessor-based, self-powered electronic protection module that integrates multiple protection functions into one unit. The PR121/P monitors current and provides overload, short-circuit, instantaneous short-circuit, and optional earth-fault protection, depending on configuration. It is installed directly on Emax breakers (3-pole or 4-pole, with or without neutral) and controls the breaker’s trip mechanism to interrupt the circuit when a trip condition is detected. The unit also provides LED indicators for alarm/trip status and allows parameter setup via DIP switches or external configuration tools

The ABB 1SDA058151R1 is a fixed three-pole moulded case circuit breaker (MCCB) from the ABB Tmax T5N series, designed for industrial and commercial electrical protection. It features an electronic solid-state trip unit (PR221DS-LS/I) that provides reliable current protection for AC circuits. The breaker has front-mounted terminals for easy installation and is suitable for use in power distribution systems where UL and CSA certification is required.

The ABB YU-1SDA038312R1 is an undervoltage release (UVR) accessory for ABB low-voltage circuit breakers (such as the SACE Emax/E1–E6 series). It is designed to monitor the supply/control voltage and automatically trip (open) the circuit breaker when the supply voltage falls below a safe threshold. This protection helps prevent malfunction, damage to electrical equipment, and unsafe operating conditions in industrial, commercial, and automation systems. The device operates reliably across both 50 Hz and 60 Hz power systems and is suitable for integration in control panels and power distribution equipment.

ABB SACE PR111/P is a microprocessor-based electronic protection trip unit designed for use with ABB SACE Emax low-voltage air circuit breakers. It continuously monitors the current flowing through the circuit breaker and provides reliable overcurrent protection. When preset protection thresholds are exceeded, the PR111/P sends a trip command to the breaker mechanism, ensuring fast and safe disconnection of the circuit.

The ABB PR122/P‑LI E1/6 is a microprocessor‑based electronic protection trip unit designed for ABB SACE Emax low‑voltage air circuit breakers with frame sizes from E1 to E6. It provides advanced electronic overcurrent protection and control for power distribution applications.

The ABB SACE Emax E6.2H 4000A is a high‑performance low‑voltage air circuit breaker designed for industrial and commercial power distribution applications. It belongs to the Emax2 series of low‑voltage power circuit breakers, offering robust protection, high interrupting capacity and flexible configuration options. The E6.2 frame is one of the largest in the Emax family, capable of handling high currents and demanding duty cycles.

The ABB E4.2H 4000A 3‑pole low‑voltage air circuit breaker, part of the ABB SACE Emax 2 series, is a high‑performance industrial circuit breaker designed for heavy‑duty power distribution applications. It delivers dependable protection against overloads, short‑circuits, and fault conditions in main and feeder circuits. The breaker features a robust E4.2H frame, is typically equipped with an electronic trip unit (such as LI or LSI), and can be supplied in a fixed configuration with rear horizontal terminals. This breaker is suitable for integration into switchboards, motor control centers, electrical distribution panels, and other demanding electrical installations requiring high current protection and coordination with downstream protection devices.

The ABB E4.2S‑A 3200A is a low‑voltage air circuit breaker from the ABB SACE Emax 2 series designed for industrial and commercial power distribution applications. It is built to protect electrical circuits from overloads, short‑circuits, and fault conditions while offering high reliability and coordination with downstream protective devices

The ABB E2.2N 3200A is a fixed, low-voltage air circuit breaker (ACB) from ABB's Emax 2 series. It is designed for primary distribution and protection in commercial, industrial, and infrastructure applications. This breaker provides advanced protection, control, and measurement functions for electrical systems up to 690V AC.

The ABB E2.2N 2000A is a fixed, low-voltage air circuit breaker (ACB) from ABB's Emax 2 series. Designed for high-performance applications, it provides comprehensive protection, advanced measurement, and energy management capabilities for main distribution feeders in commercial buildings, industrial plants, and data centers up to 690V AC