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ABB
PSTB840-690-70
The ABB PSTB840-690-70 is an advanced, multi-functional Bay Control Unit (BCU) and protection relay belonging to ABB's Relion® 670 series (formerly known as the REC 670 platform). It represents a top-tier solution for substation automation, protection, and control in high-voltage and medium-voltage applications, particularly within air-insulated switchgear (AIS) and substation environments.

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ABB
PSR25-600-11
The ABB PSR25-600-11 is a self-powered, three-phase current monitoring relay from the ABB PSR series. It is a compact, reliable device designed to protect three-phase electrical equipment, primarily motors, from damage caused by faults in the supply network, specifically phase loss (single-phasing), phase sequence reversal, and excessive current asymmetry (unbalance).

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ABB
PSR30-600-11
The ABB PSR30-600-11 is a self-powered, three-phase voltage monitoring relay with integrated motor start current logic. It is a member of the versatile ABB PSR series, designed to protect three-phase equipment—especially motors—from damage caused by incorrect or unstable power supply conditions.

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ABB
PSR30-600-81
The ABB PSR30-600-81 is a self-powered, three-phase voltage and current monitoring relay from the ABB PSR series. It is a specialized device designed to protect three-phase equipment, particularly motors, against harmful supply network conditions and to provide a unique function for safe motor starting under voltage dip conditions.

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ABB
PSR30-600-70
The ABB PSR30-600-70 is a versatile, self-powered monitoring relay from ABB's PSR (Protection, Signaling, and Control) series. It is designed as a compact, multi-function device for monitoring key electrical parameters in three-phase systems, providing protection against conditions that can damage equipment or disrupt processes.

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ABB
PSR45-600-70
The ABB PSR45-600-70 is a compact, versatile, and economically optimized configurable protection relay from ABB's PSR (Protection, Signaling, and Control) series. It functions as a universal, hardware-configured protective device designed for the essential protection of electrical feeders, motors, transformers, and other equipment in industrial and commercial power distribution networks.

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ABB
PSR45-600-11
The ABB PSR45-600-11 is a compact, multi-functional, and cost-effective microprocessor-based protection relay belonging to ABB's versatile PSR (Protection, Signaling, and Control) series. It is designed as a universal protection device for a wide range of applications, including feeder protection, motor protection, transformer protection, and general equipment protection in industrial and commercial power distribution systems.

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ABB
PSR12-600-70
The ABB PSR12-600-70 is a compact, microprocessor-based numerical motor protection relay from ABB's PSR (Protection, Signaling and Control) series. It is engineered to provide reliable and comprehensive protection for three-phase AC induction motors in a wide range of industrial applications.

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ABB
PSR6-600-70
The ABB PSR6-600-70 is a digital, programmable, and highly integrated combined motor starter relay from ABB's PSR (Protection, Signaling and Control) series. It serves as a compact, all-in-one solution for the control, protection, and monitoring of three-phase AC induction motors, primarily in Direct-On-Line (DOL) starting applications.

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ABB
PSR3-600-70
The ABB PSR3-600-70 is a compact, versatile, and economical multifunction protection relay from the core ABB PSR (Protection, Signaling and Control) series. Designed as a universal building block, it provides essential protection functions for a wide range of applications, including feeder protection, transformer protection, and general equipment protection in low-voltage and medium-voltage systems.

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