8903SQO11V02 - Square D Lighting Contactor

8903SQO11V02 - Square D Lighting Contactor

If you’re running a large lighting setup, you already know how important dependable switching is. The 8903SQO11V02 lighting contactor is built for that kind of job—steady performance, straightforward installation, and less wasted energy over time.

This is a 100 amp, 3-pole mechanically held contactor, which simply means it doesn’t need constant power to stay in position. It only uses energy when switching on or off. In real terms, that can help cut down on unnecessary power use, especially in systems that run on schedules or automation.

It comes with a 110/120 VAC coil (50/60 Hz) already installed, and if your setup calls for something different, the coil can be swapped out without much hassle. The open-style design gives you flexibility to mount it in the enclosure that fits your project, rather than forcing you into a one-size setup.

Another thing worth mentioning—maintenance is pretty straightforward. The contacts and coil are replaceable, so you’re not dealing with a full unit replacement if something wears out down the line.

All in all, it’s a practical, workhorse-style contactor that does exactly what it’s supposed to do without overcomplicating things.

Key Features and Benefits

• Rated for 100 amps, suitable for larger lighting loads
• Mechanically held to reduce continuous power draw
• 3-pole configuration with normally open contacts
• Includes 110/120 VAC (50/60 Hz) coil
• Interchangeable coil design for added flexibility
• Replaceable parts make maintenance easier
• Open-type unit for custom enclosure use
• Lug connections for solid, secure wiring

Technical Specifications

• Catalog Number: 8903SQO11V02
  
• Product Type: Mechanically Held Lighting Contactor
  
• Current Rating: 100A
  
• Poles: 3
  
• Contact Type: Normally Open (NO)
  
• Control Voltage: 110/120 VAC, 50/60 Hz
  
• Connection Type: Lugs
  
• Dimensions:
  • Height: 7.2 in
  • Width: 5.9 in
  • Depth: 6.7 in
• Enclosure: Open (no enclosure included)
  
• Auxiliary Contacts: None
  
• Pilot Light: No
  

Material Compliance and Certifications

• UL Listed
• CSA Certified
• TAA Compliant
• 18-month manufacturer warranty