8903SMO4V02 - Square D Lighting Contactor

8903SMO4V02 - Square D Lighting Contactor

When you’re dealing with lighting control in a commercial setting, you need something that’s dependable and easy to work on when the time comes. The 8903SMO4V02 Type S lighting contactor checks both boxes. It’s a 30 amp, electrically held unit with five normally open poles, built to handle multiple lighting circuits without fuss. The 110/120 VAC coil keeps it compatible with standard control setups, so you’re not reinventing anything to get it installed.

This is the kind of component that makes life easier in the field. The open-style design gives you quick access, and if something needs replacing down the line, the coil and contacts can be swapped out without a headache. It’s also part of a widely used series, so you’ve got options when it comes to enclosures or pairing it with other control equipment. No gimmicks here—just a solid, straightforward lighting contactor that does its job and keeps downtime to a minimum.

Key Features and Benefits

• Electrically held design for steady, reliable switching
• Rated for 30 amps—well-suited for commercial lighting loads
• Five-pole configuration with 5 normally open contacts
• 110/120 VAC coil (50/60 Hz) for standard control voltage
• Open-style construction for easier access and maintenance
• Replaceable coil and contacts help reduce service time
• Flexible enough to fit a range of lighting control setups

Technical Specifications

• Type: Electrically Held Lighting Contactor
  
• Series: Type S (8903S)
  
• Current Rating: 30A
  
• Poles: 5
  
• Contacts: 5 Normally Open (NO)
  
• Control Voltage: 110/120 VAC, 50/60 Hz
  
• Connections: Lug terminals
  
• Dimensions: 3.5" H × 4.3" W × 4.2" D
  
• Enclosure: Open (no enclosure)
  
• Auxiliary Contacts: None
  
• Pilot Light: No
  

Material Compliance and Certifications

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

Where It Works Best

• You’ll typically see this used anywhere lighting needs to be controlled across multiple circuits without constant maintenance:
• Commercial buildings and retail spaces
• Warehouses and shop floors
• Parking lot and exterior lighting
• Schools, hospitals, and larger facilities