31063-409-47 - Square D Coil

31063-409-47 - Square D Coil

If a contactor or starter stops working, the coil is often the first thing to check—and in a lot of cases, it’s the only part that needs replacing. The 31063-409-47 coil gives you a straightforward way to get your equipment back in service without tearing everything out and starting over.

This coil is made for use with 8502 Type SD contactors, 8536 Type SD starters, and 8903 Type SP lighting contactors, so if you’re working with any of those, it’s a direct fit. It runs on 220/240V AC (50/60 Hz) and installs using standard screw clamp connections—nothing complicated or time-consuming.

One thing worth noting: the coil is fully encapsulated. That matters more than people think. It helps keep out dust, moisture, and general shop grime, which is usually what shortens the life of electrical components in the first place. So once it’s in, you’re not coming back to fix the same issue anytime soon.

Bottom line—if the rest of your equipment is still in good shape, this lets you fix the problem without overspending or overthinking it.

Key Features and Benefits

• Fits NEMA Size 2 contactors and starters
• Works with 8502SD, 8536SD, and 8903SP equipment
• Rated for 220/240V AC, 50/60 Hz
• Encapsulated coil helps protect against dirt and moisture
• Screw clamp terminals for a solid, no-fuss connection
• A practical fix that avoids replacing the entire unit

Technical Specifications

• Catalog Number: 31063-409-47
• Type: Replacement Coil
• NEMA Size: 2
• Voltage: 220V AC (50 Hz) / 240V AC (60 Hz)
• Inrush Power: up to 311 VA
• Sealed Consumption: approx. 36–37 VA
• Dimensions:
  • Height: 2.6 in
  • Width: 4.0 in
  • Depth: 2.4 in
• Connections: Screw Clamp

Material Compliance and Certifications

• Built to meet standard industrial expectations for control components. The sealed construction adds durability and helps it hold up in environments where exposure to dust or moisture is part of the job.

Where It Works Best

• This coil is typically used in:
• Motor starters and control panels
• Commercial HVAC systems
• Lighting contactors in larger facilities
• Maintenance repairs and replacements
• Situations where voltage needs to be matched or updated