Square D 8903LG40V04 Lighting Contactor – Class 8903 – Type L – 4 Pole – 30A – 3 Phase – 277VAC Coil – NEMA 1 Enclosed

The Square D 8903LG40V04 is a Class 8903 electrically held multipole lighting contactor designed for reliable switching of lighting and general-purpose electrical loads. Manufactured by Schneider Electric under the Square D brand, it is commonly used in commercial and industrial lighting control systems where multi-circuit control and durability are required.

This 4-pole, 30A contactor is rated for 600VAC switching and features a 277VAC control coil, making it suitable for lighting systems that operate on higher control voltages commonly found in commercial installations. It is supplied in a complete NEMA Type 1 enclosure for safe indoor mounting.

Specifications

• Brand: Square D
• Manufacturer: Schneider Electric
• Part Number: 8903LG40V04
• Series: Class 8903
• Type: L
• Category: Lighting Contactor / Magnetic Contactor
• Configuration: 4 Pole
• Phase: 3 Phase
• Current Rating: 30A
• Voltage Rating: 600VAC
• Coil Voltage: 277VAC
• Operation Type: Electrically Held
• Enclosure Type: NEMA Type 1 (Enclosed Unit)

Construction

• Heavy-duty industrial lighting contactor
• Silver alloy contact system for long electrical life
• Factory-assembled NEMA 1 enclosure
• Screw-clamp terminal connections
• Compact, modular lighting control design

Dimensions & Weight

• Height: 6.02 in
• Width: 7.8 in
• Depth: 12.68 in
• Weight: 10 lb

Applications

• Commercial lighting control systems
• Industrial lighting distribution
• Building automation systems
• Energy management systems
• HVAC auxiliary load switching
• Multi-circuit lighting control

Certifications & Approvals

• UL Listed
• CSA Certified
• NEMA Type 1 compliant enclosure
• Authentic Square D / Schneider Electric product
• Designed for Class 8903 lighting contactor systems