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QDW02 Distribution Boards. SIW Switch-Disconnectors. The proper selection of the protection devices is essential for the safety and successful operation of electrical installations. Therefore, WEG offers a complete line of products to protect electrical wires and cables against short circuits, fire, energy overloads and current surges. They provide safety and economy for all kinds of application, in addition to counting on all the tradition and quality that only a world- wide recognized trademark as WEG can offer.
Protection Devices. Safety in the applications. Easy installation. Applications in several segments:. Protection of the electrical circuit. Optional accessories. Distribution boards for different environments. The MDWH miniature circuit breakers have a trip free mechanism, which makes the trip independent from the handle, and circuit breaker status indication. Tripping Characteristic Curves.
Curve B The main characteristic of the miniature circuit-breaker of curve B is the instantaneous trip for currents from 3 to 5 times above the rated current. Therefore, they are applied mainly in the protection of circuits with resistive characteristics or with great cable lengths. Curve C The characteristic of the miniature circuit-breaker of curve C is the instantaneous trip for currents from 5 to 10 times above the rated current.
Therefore, they are used for the protection of circuits with installation of inductive loads. Single-Pole Miniature Circuit Breakers. WEG code. Two-Pole Miniature Circuit Breakers. Three-Pole Miniature Circuit Breakers. Four-Pole Miniature Circuit Breakers.
Maximum operating voltage U e. Rated insulating voltage U i. Rated currents I n. NBR NM Short-circuit breaking capacity. IEC Tripping characteristic curves. Number of poles. Electrical lifespan. Ambient temperature.
Degree of protection. Connection capacity. Mounting position. No restriction. Tightening torque on the terminals. DIN rail 35 mm. Weight kg. Notes: 1 Single-pole connection. Rated current range l n A. Maximum dissipated active power per pole W.
Accessories - MDW Line 1. Contact block. Example of application. Auxiliary contact blocks. Padlock diameter. Units per package. Up to 5 mm. MDW 70 A, A. Note: 1 Limited to one auxiliary block per circuit breaker. Temperature Derating Factor.
Rated current A. Altitude Derating Factor. Altitude m. Derating factor. Contact configuration. MDWH 6 to 63 A. Auxiliary contact. Alarm contact. No setting available. Undervoltage release. Timing range. Miniature circuit. Standard package pc. Left side. Notes: 1 Limited to one auxiliary block per circuit breaker. The QDW switch board panel line provides your home with quality, reliability and the tradition of WEG brand , already known in industrial electrical installations.
Available in wall and flush mounting versions, the QDW line is made of plastic and dimensioned for the installation of 4 to 36 DIN standard circuit breaker modules. You also have the option of white or smoked door. References and Codes. Flush Distribution Boards - IP Capacity of poles DIN. Cover type. Learn more about Scribd Membership Home.
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Is this content inappropriate? Report this Document. Flag for Inappropriate Content. Download Now. Related titles. Carousel Previous Carousel Next. Jump to Page. Search inside document. Tripping time. B50 B Prospective short-circuit current kArms. Energy limit I 2 t A 2 s. Fully tested. MDW C
NBR 5410 Instalações elétricas de baixa tensão Comentada
NBR 05410 COMENTADA