SQUARE D Lighting Magnetic Contactor: 3 Poles, 120V AC
SKU 3G-OTH-38851
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Frequently Asked Questions
What is a SQUARE D lighting magnetic contactor used for?
A SQUARE D lighting magnetic contactor, like the 8903SMG11V02, is used to remotely switch large lighting loads in commercial and industrial facilities. It provides reliable on/off control for high-intensity discharge, fluorescent, or LED lighting circuits, reducing wear on manual switches and enabling centralized or automated lighting management.
What are the specifications of the SQUARE D 8903SMG11V02 contactor?
The SQUARE D 8903SMG11V02 is a 3-pole enclosed mechanically held lighting contactor rated for 30 A at 120V AC. It is designed for robust switching of lighting circuits and features a mechanically held mechanism that maintains contact position without continuous coil power, reducing energy consumption and heat buildup.
Where to buy SQUARE D lighting contactors worldwide?
3G Electric supplies SQUARE D lighting contactors, including the 8903SMG11V02, to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source genuine SQUARE D equipment and support your procurement with technical expertise across 14 industrial departments.
How to install a SQUARE D mechanically held lighting contactor?
Installation of a SQUARE D mechanically held lighting contactor should follow the manufacturer's wiring diagram and local electrical codes. Mount the enclosure securely, connect line and load conductors to the appropriate terminals, and verify control voltage (120V AC). Always de-energize the circuit before installation and consult a qualified electrician for proper setup.
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Common applications for SQUARE DSQUARE D Products
3G Electric supplies SQUARE D enclosed mechanically held lighting contactors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









