SQUARE D Lighting Magnetic Contactor: 4 Poles, 120V AC, 30 A
SKU 3G-OTH-43428
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Frequently Asked Questions
What is the SQUARE D 8903SMO12V02 lighting contactor used for?
The SQUARE D 8903SMO12V02 is a mechanically held lighting contactor used to control lighting circuits in commercial and industrial buildings. It switches large banks of lights on and off remotely, and its mechanically held design maintains the contact position without continuous coil power, reducing energy consumption and heat buildup.
What are the specifications of the SQUARE D 8903SMO12V02?
The SQUARE D 8903SMO12V02 is a 4-pole, mechanically held lighting contactor rated for 30 A and 120 V AC coil voltage. It is designed for switching lighting loads and is part of the SQUARE D 8903 series. The mechanically held mechanism ensures stable contact position without constant coil energization.
Where to buy the SQUARE D 8903SMO12V02 worldwide?
You can source the SQUARE D 8903SMO12V02 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we provide competitive pricing and reliable sourcing for this SQUARE D lighting contactor.
How to select a mechanically held lighting contactor like the SQUARE D 8903SMO12V02?
When selecting a mechanically held lighting contactor, verify the number of poles (4 for this model), coil voltage (120 V AC), and current rating (30 A). Ensure the contactor matches your lighting load type (e.g., incandescent, LED, or fluorescent). The mechanically held design is ideal for applications where continuous coil power is undesirable, such as energy-saving installations.
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Common applications for SQUARE DSQUARE D Products
3G Electric supplies SQUARE D mechanically held lighting contactors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















