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SQUARE D

Square D, a brand of Schneider Electric, is a manufacturer of electrical distribution and industrial control products. The brand originated in the United States and has a long history of producing components for commercial, industrial, and residential electrical systems. 3G Electric supplies a range of Square D circuit breakers, enclosures, and related equipment, focusing on the QO, QOB, and QOU series of miniature circuit breakers, as well as L-Frame and Q-Frame enclosures. These products are designed for use in load centers, panelboards, and other distribution equipment. The QO series offers plug-in miniature circuit breakers with ratings from 15 A to 50 A, single- and three-phase configurations, and AC voltage ratings up to 240V. Interrupting ratings range from 10 kA to 22 kA at 120/240V AC, depending on the model. The QOB series provides bolt-on miniature circuit breakers for NQOD panelboards, with similar amperage and voltage ranges. The QOU series includes unit-mount breakers suitable for heating applications. Enclosures include L-Frame (400 A, outdoor, surface-mount) and Q-Frame (225 A, indoor, surface-mount) types, compatible with specific Square D circuit breaker families. These products are built to UL standards and are intended for use in environments requiring reliable overcurrent protection. 3G Electric stocks over 1,300 SKUs of Square D equipment, supporting global procurement with logistics for industrial maintenance, facility upgrades, and new installations. The inventory covers common configurations for plant engineers and maintenance managers specifying replacement or new circuit protection components.

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Tentang SQUARE D

Square D, a brand of Schneider Electric, is a manufacturer of electrical distribution and industrial control products. The brand originated in the United States and has a long history of producing components for commercial, industrial, and residential electrical systems. 3G Electric supplies a range of Square D circuit breakers, enclosures, and related equipment, focusing on the QO, QOB, and QOU series of miniature circuit breakers, as well as L-Frame and Q-Frame enclosures. These products are designed for use in load centers, panelboards, and other distribution equipment. The QO series offers plug-in miniature circuit breakers with ratings from 15 A to 50 A, single- and three-phase configurations, and AC voltage ratings up to 240V. Interrupting ratings range from 10 kA to 22 kA at 120/240V AC, depending on the model. The QOB series provides bolt-on miniature circuit breakers for NQOD panelboards, with similar amperage and voltage ranges. The QOU series includes unit-mount breakers suitable for heating applications. Enclosures include L-Frame (400 A, outdoor, surface-mount) and Q-Frame (225 A, indoor, surface-mount) types, compatible with specific Square D circuit breaker families. These products are built to UL standards and are intended for use in environments requiring reliable overcurrent protection. 3G Electric stocks over 1,300 SKUs of Square D equipment, supporting global procurement with logistics for industrial maintenance, facility upgrades, and new installations. The inventory covers common configurations for plant engineers and maintenance managers specifying replacement or new circuit protection components.

Aplikasi Umum

  • Commercial building electrical panels — Square D QO series plug-in circuit breakers for branch circuit protection
  • Industrial motor control centers — Square D QOB series bolt-on breakers in NQOD panelboards
  • Heating equipment installations — Square D QOU series unit-mount breakers for overcurrent protection
  • Outdoor electrical distribution — Square D L-Frame enclosures housing LAL/LHL breakers for 400 A service
  • Indoor facility power distribution — Square D Q-Frame enclosures with QBL/QDL breakers for 225 A circuits
  • Retrofit and replacement in existing Square D load centers — QO series breakers for 120/240V AC systems

Pertanyaan yang Sering Diajukan

Pertanyaan umum tentang SQUARE D dari 3G Electric.

What is the difference between Square D QO and QOB series circuit breakers?

The QO series circuit breakers are plug-in type, designed for use in QO load centers and NQ panelboards. They install by plugging into a bus bar. The QOB series are bolt-on type, intended for NQOD panelboards, where they are secured with bolts for a more rigid connection. Both series offer similar amperage and voltage ratings, but the mounting method differs based on the panelboard design.

What are the interrupting ratings available for Square D QO series breakers?

Square D QO series miniature circuit breakers are available with maximum interrupting ratings (AIR) of 10 kA or 22 kA at 120/240V AC, depending on the specific model. For example, the QO230 has a 10 kA rating, while the QO350VH has a 22 kA rating. Always verify the AIR requirement for your application to ensure proper fault current protection.

Can Square D QOU series breakers be used for heating applications?

Yes, the Square D QOU series unit-mount miniature circuit breakers are specified for use with heating applications. For instance, the QOU215VH is a 15 A, 2-pole breaker rated for 120/240V AC with a 22 kA interrupting rating. These breakers are designed for unit-mount installations in heating equipment.

What enclosures are available for Square D L-Frame circuit breakers?

Square D offers L-Frame circuit breaker enclosures, such as the LA400AWK, which is a 3-space, 400 A outdoor enclosure for surface mounting. It is compatible with Square D LAL and LHL circuit breakers. These enclosures provide protection for the breakers in outdoor environments.

Are Square D Q-Frame enclosures suitable for indoor use?

Yes, Square D Q-Frame enclosures, like the Q23225NS, are designed for indoor use. This model is a 3-space, 225 A surface-mount enclosure compatible with QBL, QDL, QGL, and QJL circuit breakers. It provides a housing for these breakers in indoor electrical distribution systems.

Does 3G Electric supply SQUARE D products?

Yes — 3G Electric (S) Pte. Ltd. supplies SQUARE D products. We stock the SQUARE D catalog and supply genuine factory-original products with full manufacturer warranty and technical support.