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ABB
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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ABB
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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ABB
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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ABB
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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ABB
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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ABB
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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ABB
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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ABB
GSH202A-C63/0.03
The ABB GSH202A-C63/0.03 is a 2-pole, 63A, Type A, C-curve Residual Current Circuit Breaker with Overcurrent Protection (RCBO). This integrated protective device is designed for single-phase circuits (or two-phase circuits) where the highest level of protection is required. It combines the functions of a miniature circuit breaker (MCB) for overload and short-circuit protection, and a residual current device (RCD) for earth leakage protection, all in one compact unit. The key feature is its Type A sensitivity, which detects both sinusoidal AC residual currents and pulsating DC residual currents, making it essential for protecting circuits feeding modern electronic equipment that contains rectifiers or switch-mode power supplies.

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ABB
2TAZ224201R2634
The ABB 2TAZ224201R2634 is a push button operator head with a green illuminated dome cap, designed for 22.5mm panel mounting holes. This operator combines a tactile push-button function with an integrated colored indicator light, all within a single, compact module. The green illumination provides clear visual feedback (e.g., "power on," "system ready," "cycle complete") at the point of operation. This is an operator module that must be paired with a compatible contact block (for the switch function) and/or a lamp holder base (for the light function) to form a complete electrical device.

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ABB
GSH204 AC-S-C50/0.3
The ABB GSH204 AC-S-C50/0.3 is a 4-pole, 50A, Type AC, C-curve, Selective ("S"-type) Residual Current Circuit Breaker with Overcurrent Protection (RCBO). This is a highly specialized and advanced protective device that combines the full functionality of an RCBO (overload, short-circuit, and earth leakage protection) with a built-in time-delayed trip characteristic for residual currents. The "S" (Selective) suffix indicates it incorporates a short time delay (typically 10-40 ms) before tripping on a residual current fault. This allows it to be used in a coordinated protection scheme with downstream instantaneous ("G"-general use) RCDs/RCBOs, ensuring that only the circuit closest to the fault trips, minimizing unnecessary power outages.

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