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SQUARE

Square D is a brand of electrical distribution and control equipment, historically associated with the Square D Company founded in 1902 and now part of Schneider Electric. The brand is widely recognized for circuit breakers, load centers, safety switches, transformers, and motor control products. 3G Electric supplies Square D electrical control and safety switchgear, including a range of electrically held lighting contactors. These contactors are used to switch lighting circuits in commercial and industrial buildings, with models available in various pole configurations and current ratings. The product family includes devices rated for 120V AC or 277V AC coils, with current ratings of 30 A or 60 A per pole, and pole counts ranging from 3 to 12. They are designed for remote switching of lighting loads such as warehouses, parking lots, and manufacturing facilities. The contactors are electrically held, meaning they require a continuous control voltage to maintain the closed position. This makes them suitable for applications where the lighting state must be maintained during normal operation and where a power failure should result in the lights turning off. The products are built to standard industrial specifications, though specific IP ratings and build standards are not detailed in the available product data. 3G Electric provides global access to these Square D products, with 328 SKUs listed, along with datasheets and logistics support. The company serves plant engineers, maintenance managers, and procurement specialists who require reliable electrical components for industrial and commercial installations. By offering a wide selection of Square D lighting contactors, 3G Electric enables customers to source the appropriate configuration for their specific voltage, current, and pole requirements. The product range includes models with manufacturer part numbers such as 8903LO60V04, 8903SPO2V04, and 8903LO1000V02, among others. These contactors are typically used in lighting control systems where centralized on/off control is needed, and they can be integrated with building management systems or manual control switches. The availability of multiple pole configurations allows for flexibility in designing lighting circuits, whether for small areas or large-scale facilities. 3G Electric's role is to facilitate the procurement of these components, ensuring that customers can obtain the exact Square D part numbers they need without regional restrictions. The company does not manufacture these products but acts as a distributor, providing access to the Square D line and supporting customers with technical documentation and order fulfillment. This includes handling logistics to ship products globally, which is essential for multinational companies and projects in remote locations. The focus is on supplying genuine Square D products that meet the original equipment manufacturer's specifications, ensuring compatibility and performance in demanding environments. For technical buyers, the key considerations when selecting a Square D lighting contactor include the coil voltage, current rating per pole, number of poles, and the type of enclosure required. While the product descriptions do not specify enclosure types or IP ratings, these details can typically be found in the manufacturer's datasheets, which 3G Electric can provide. The electrically held design is distinct from mechanically held (latching) contactors, which only require a momentary pulse to change state. Electrically held contactors are simpler and often more cost-effective for applications where the lighting is controlled by a switch or relay that maintains the control signal. They are also suitable for use with automated control systems that provide a continuous output. In summary, 3G Electric supplies Square D electrical control and safety switchgear, with a current focus on electrically held lighting contactors. These products are available in various configurations to meet the needs of commercial and industrial lighting applications. 3G Electric supports global customers with product data, logistics, and access to a broad inventory of Square D SKUs.

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About SQUARE

Square D is a brand of electrical distribution and control equipment, historically associated with the Square D Company founded in 1902 and now part of Schneider Electric. The brand is widely recognized for circuit breakers, load centers, safety switches, transformers, and motor control products. 3G Electric supplies Square D electrical control and safety switchgear, including a range of electrically held lighting contactors. These contactors are used to switch lighting circuits in commercial and industrial buildings, with models available in various pole configurations and current ratings. The product family includes devices rated for 120V AC or 277V AC coils, with current ratings of 30 A or 60 A per pole, and pole counts ranging from 3 to 12. They are designed for remote switching of lighting loads such as warehouses, parking lots, and manufacturing facilities. The contactors are electrically held, meaning they require a continuous control voltage to maintain the closed position. This makes them suitable for applications where the lighting state must be maintained during normal operation and where a power failure should result in the lights turning off. The products are built to standard industrial specifications, though specific IP ratings and build standards are not detailed in the available product data. 3G Electric provides global access to these Square D products, with 328 SKUs listed, along with datasheets and logistics support. The company serves plant engineers, maintenance managers, and procurement specialists who require reliable electrical components for industrial and commercial installations. By offering a wide selection of Square D lighting contactors, 3G Electric enables customers to source the appropriate configuration for their specific voltage, current, and pole requirements. The product range includes models with manufacturer part numbers such as 8903LO60V04, 8903SPO2V04, and 8903LO1000V02, among others. These contactors are typically used in lighting control systems where centralized on/off control is needed, and they can be integrated with building management systems or manual control switches. The availability of multiple pole configurations allows for flexibility in designing lighting circuits, whether for small areas or large-scale facilities. 3G Electric's role is to facilitate the procurement of these components, ensuring that customers can obtain the exact Square D part numbers they need without regional restrictions. The company does not manufacture these products but acts as a distributor, providing access to the Square D line and supporting customers with technical documentation and order fulfillment. This includes handling logistics to ship products globally, which is essential for multinational companies and projects in remote locations. The focus is on supplying genuine Square D products that meet the original equipment manufacturer's specifications, ensuring compatibility and performance in demanding environments. For technical buyers, the key considerations when selecting a Square D lighting contactor include the coil voltage, current rating per pole, number of poles, and the type of enclosure required. While the product descriptions do not specify enclosure types or IP ratings, these details can typically be found in the manufacturer's datasheets, which 3G Electric can provide. The electrically held design is distinct from mechanically held (latching) contactors, which only require a momentary pulse to change state. Electrically held contactors are simpler and often more cost-effective for applications where the lighting is controlled by a switch or relay that maintains the control signal. They are also suitable for use with automated control systems that provide a continuous output. In summary, 3G Electric supplies Square D electrical control and safety switchgear, with a current focus on electrically held lighting contactors. These products are available in various configurations to meet the needs of commercial and industrial lighting applications. 3G Electric supports global customers with product data, logistics, and access to a broad inventory of Square D SKUs.

Common Applications

  • Commercial building lighting control — Square D 8903LO60V04 (6-pole, 30 A, 277V AC coil) for switching large-area lighting in offices and retail spaces.
  • Warehouse lighting — Square D 8903LO1000V02 (10-pole, 30 A, 120V AC coil) for centralized control of high-bay lighting circuits.
  • Parking lot lighting — Square D 8903SPO2V04 (3-pole, 60 A, 277V AC coil) for remote switching of exterior lighting groups.
  • Manufacturing facility lighting — Square D 8903LO1200V02 (12-pole, 30 A, 120V AC coil) for multi-circuit lighting control in production areas.
  • Industrial facility lighting — Square D 8903SMO2V02 (3-pole, 30 A, 120V AC coil) for switching lighting in small zones or individual rooms.
  • Large-scale lighting systems — Square D 8903LO80V02 (8-pole, 30 A, 120V AC coil) for controlling multiple lighting circuits from a single point.

Frequently asked questions

Common questions about SQUARE from 3G Electric.

What is the difference between electrically held and mechanically held lighting contactors in the Square D line?

Electrically held lighting contactors, such as the Square D 8903 series, require a continuous control voltage to keep the contacts closed. When the control power is removed, the contactor opens and the lighting circuit turns off. Mechanically held (latching) contactors use a momentary pulse to change state and remain in that position without continuous power. Electrically held models are typically used where the control signal is maintained, such as with a standard switch or relay output, and they are often more compact and less expensive than mechanically held versions. The Square D electrically held contactors supplied by 3G Electric include models with 3 to 12 poles and ratings of 30 A or 60 A per pole.

What are the available coil voltages for Square D electrically held lighting contactors?

The Square D electrically held lighting contactors listed by 3G Electric are available with either 120V AC or 277V AC coils. For example, the 8903LO60V04 has a 277V AC coil, while the 8903LO80V02 has a 120V AC coil. The coil voltage determines the control circuit voltage required to operate the contactor. It is important to match the coil voltage to the available control power source. These contactors are designed for switching lighting loads and are not intended for use as motor starters or for other inductive loads without proper sizing. Always refer to the manufacturer's datasheet for specific coil voltage tolerances and operating characteristics.

Can Square D lighting contactors be used for both 120V and 277V lighting circuits?

Square D lighting contactors are available with different coil voltages and contact ratings. The contact rating is typically independent of the coil voltage, but the contactor must be selected based on the load voltage and current. For example, a contactor with a 120V AC coil can switch 277V AC lighting circuits if the contacts are rated for that voltage. The products listed by 3G Electric include models rated for 277V AC and 120V AC, with current ratings of 30 A or 60 A per pole. It is essential to verify that the contactor's contact rating meets or exceeds the lighting load's voltage and current requirements. For specific applications, consult the Square D catalog or contact 3G Electric for assistance with part number selection.

What is the maximum number of poles available for Square D electrically held lighting contactors?

The Square D electrically held lighting contactors supplied by 3G Electric include models with up to 12 poles. For instance, the 8903LO1200V02 has 12 poles rated at 30 A per pole with a 120V AC coil. Pole counts range from 3 poles (e.g., 8903SPO2V04) to 12 poles. The number of poles determines how many separate lighting circuits can be controlled by a single contactor. This is useful for grouping multiple circuits under one control point, such as in a panelboard or dedicated lighting control panel. When selecting a contactor, consider the total number of circuits to be switched and the current per circuit. Higher pole counts can reduce the number of individual contactors required, simplifying wiring and reducing panel space.

Are Square D lighting contactors suitable for outdoor or wet locations?

The Square D lighting contactors listed by 3G Electric are typically open-style components intended for installation inside enclosures or control panels. They do not have inherent environmental ratings such as NEMA or IP ratings unless specified. For outdoor or wet locations, they must be installed in an appropriate enclosure that provides the required degree of protection. The product descriptions do not indicate that these contactors are rated for direct exposure to weather. Therefore, it is the responsibility of the installer to ensure that the final installation meets applicable electrical codes and environmental conditions. 3G Electric can provide datasheets that may include additional details on enclosure requirements and operating temperature ranges.

How does 3G Electric support the Square D product line for global customers?

3G Electric supplies Square D electrical control and safety switchgear to customers worldwide. The company maintains a catalog of 328 Square D SKUs, including the electrically held lighting contactors described here. For each product, 3G Electric can provide manufacturer part numbers, datasheets, and logistics support to ship orders globally. This is particularly useful for multinational companies and projects in regions where local availability of specific Square D part numbers may be limited. 3G Electric does not manufacture Square D products but acts as a distributor, ensuring that customers receive genuine components that meet the original specifications. Technical buyers can request quotes and lead times for specific part numbers through the 3G Electric platform.