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REF615E-E

The ABB REF615E-E is a multifunctional, compact, and cost-optimized feeder protection relay from ABB's Relion® 615 series, representing a specific variant within the "E" family designed for essential protection and control applications. As part of the Adaptive Protection concept, it delivers a focused set of core protection functions tailored for basic feeder protection in industrial, commercial, and utility medium-voltage (up to 24kV) distribution networks. The "-E" suffix typically denotes an economy or essential version, offering a streamlined feature set for applications where the full suite of functions in the standard REF615 is not required, while maintaining high reliability and key communication capabilities.

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REF615J

The ABB REF615J is a high-performance, IEC 61850-enabled feeder protection and control relay belonging to ABB's Relion® 615 series, housed in the "J" variant case. This numerical relay is engineered for the comprehensive protection, automation, control, and monitoring of medium-voltage feeders (typically up to 24kV) in utility substations, industrial plants, and commercial power distribution systems. It represents a core component of ABB's Adaptive Protection philosophy, offering a robust suite of protection functions, advanced communication capabilities (notably IEC 61850), and flexible programmability to meet the demands of modern grid applications.

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REF615K

The ABB REF615K is a next-generation, IEC 61850-enabled feeder protection and control relay from ABB's renowned Relion® 615 series, specifically in the "K" compact housing. It is a versatile, multifunctional digital relay designed for the comprehensive protection, control, monitoring, and automation of medium-voltage (typically up to 24kV) feeders, motors, and transformers in utility, industrial, and commercial power distribution networks. As a key component of ABB's Relion® product family, it embodies the concept of Adaptive Protection, offering high reliability, advanced communication, and easy integration into modern smart grid systems.

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TA25DU-19

The ABB TA25DU-19 is a miniature, industrial-grade, 8-pin Octal Base Relay Socket. It is designed to securely hold and provide electrical connection to a standard 8-pin round (Octal) plug-in relay or timer (conforming to IEC 60715 dimensions). This socket serves as the interface between the removable relay and the control panel's fixed wiring. It provides screw terminal connections for easy wiring, allows for quick relay replacement without rewiring, and often includes a mechanical latch or clip to prevent accidental disconnection. The "-19" suffix likely indicates a specific variant, possibly with a metal clip or specific terminal type.

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GDA204一AC

The ABB GDA204-AC is a 4-pole, Type AC, double-insulated (isolated) enclosure for Residual Current Devices (RCDs) from the ABB GDA series. This is not an electrical protection device itself, but a high-safety, non-conductive mounting enclosure designed to house and insulate a standard 4-pole RCCB (Residual Current Circuit Breaker without overcurrent protection) or RCBO. Its primary function is to provide enhanced safety and insulation for the RCD module, creating an extra layer of protection against accidental contact with live parts. This is particularly important when installing RCDs in environments where metallic enclosures are not desired or for added safety in consumer units.

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GSH204A-C20/0.03

The ABB GSH204A-C20/0.03 is a 4-pole, 20A, Type A, C-curve Residual Current Circuit Breaker with Overcurrent Protection (RCBO). This advanced protective device is designed for three-phase four-wire circuits that supply modern electronic and electrical equipment. It integrates complete protection against overloads, short-circuits, and earth leakage currents (30mA) into a single compact unit. The key feature is its Type A residual current detection, which is sensitive to both sinusoidal AC residual currents and pulsating DC residual currents. This makes it essential for protecting circuits that feed loads containing rectifiers, switch-mode power supplies, or variable frequency drives (VFDs), where standard Type AC protection may fail.

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SA/S 8.16.1

The ABB SA/S 8.16.1 is a single-phase, self-contained (direct-connected), electromechanical energy meter (kWh meter) from ABB's extensive metering product line. This device is designed for accurate measurement and direct display of active electrical energy consumption (in kilowatt-hours, kWh) in single-phase two-wire AC circuits. Characterized by its classic electromechanical design with a rotating aluminum disc and mechanical counter, it provides robust, reliable, and maintenance-free measurement without requiring an external power supply. The "SA/S" series denotes a specific family of these induction-based meters, and "8.16.1" indicates its current rating (8-16A) and likely its metrology class.

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GSH204 AC-D40/0.03

The ABB GSH204 AC-D40/0.03 is a 4-pole, 40A, Type AC, D-curve Residual Current Circuit Breaker with Overcurrent Protection (RCBO). This advanced protective device is engineered for three-phase four-wire circuits that supply equipment with extremely high inrush (starting) currents. It integrates complete protection against overloads, short-circuits, and earth leakage currents (30mA) into a single compact unit. The defining feature is its D-curve overcurrent characteristic, which features a very high magnetic trip threshold (10-20 times the rated current) to withstand the intense but brief startup surges of motors, transformers, and other inductive loads without nuisance tripping, while still providing critical life-saving protection against electric shock.

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GSH204 AC-D32-0.03

The ABB GSH204 AC-D32/0.03 is a 4-pole, 32A, Type AC, D-curve Residual Current Circuit Breaker with Overcurrent Protection (RCBO). This specialized device is engineered for protecting three-phase four-wire circuits that supply loads with very high inrush (starting) currents. It combines complete protection against overloads, short-circuits, and earth leakage faults in one unit. The D-curve overcurrent characteristic provides a high magnetic trip threshold, making it immune to nuisance tripping from the brief but intense startup surges typical of motors, transformers, and certain lighting systems, while the 30mA Type AC RCD component ensures critical protection against electric shock.

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GSH204 AC-D10/0.03

The ABB GSH204 AC-D10/0.03 is a 4-pole, 10A, Type AC, D-curve Residual Current Circuit Breaker with Overcurrent Protection (RCBO). This is a specialized protective device designed for three-phase circuits (with neutral) that power loads with very high inrush currents, such as transformers, certain discharge lighting, or specific types of motor starting circuits. It integrates comprehensive protection against overloads, short-circuits, and earth leakage currents in a single unit. The key differentiator is its D-curve overcurrent characteristic, which provides a higher magnetic trip threshold to tolerate high startup surges without nuisance tripping, while its 30mA Type AC RCD component ensures protection against electric shock.

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