8903SQO10V02 - Square D Lighting Contactor

8903SQO10V02 - Square D Lighting Contactor

The 8903SQO10V02 lighting contactor is a straightforward solution for controlling lighting in commercial and industrial setups. It’s mechanically held, so it doesn’t draw power continuously—only when switching. That’s a practical advantage if you’re trying to cut down on energy use or avoid unnecessary heat in your panel.

With a 100-amp rating and a 2-pole configuration, it’s built to handle typical lighting loads you’d find in larger buildings, warehouses, or exterior lighting systems. It comes with a 110/120VAC coil, which covers most standard applications, and since the coil is interchangeable, you’re not locked into one setup.

The open-style design keeps things simple. You can mount it as-is or pair it with the enclosure that makes sense for your environment. No extras you don’t need—just a dependable contactor that does what it’s supposed to do.

Key Features and Benefits

• Mechanically held—uses power only when switching, not continuously
• 100 amp rating for commercial and industrial lighting loads
• 2-pole with 2 normally open contacts
• 110/120VAC 50/60 Hz coil included
• Interchangeable coil design for flexibility
• Open-style unit for easier configuration
• Works with common accessories when needed

Technical Specifications

• Catalog Number: 8903SQO10V02
  
• Type: Mechanically Held Lighting Contactor (Type S)
  
• Current Rating: 100 Amps
  
• Poles: 2P
  
• Contacts: 2 Normally Open (NO)
  
• Control Voltage: 110V AC 50 Hz / 120V AC 60 Hz
  
• Connections: Lugs
  
• Dimensions:
  • Height: 7.2 in
  • Width: 5.9 in
  • Depth: 6.7 in
• Design: Open (no enclosure included)
  
• Country of Origin: Mexico
  
• Warranty: 18 months
  

Material Compliance and Certifications

• UL Listed
• CSA Certified
• TAA Compliant

Where It Works Best

• Commercial lighting panels
• Warehouses and storage facilities
• Parking lot and outdoor lighting control
• Office buildings and schools
• Industrial lighting systems
• Replacement for existing lighting contactors