31091-400-47 - Square D Coil

31091-400-47 - Square D Coil

When a coil fails, it can bring everything to a stop—but replacing the whole contactor or starter is often overkill. The Schneider Electric 31091-400-47 replacement coil gives you a simpler fix. Swap the coil, get your equipment back online, and move on.

This coil is made for Type S contactors and starters, including common setups like 8502SF contactors, 8536SF starters, and 8903SV lighting contactors. It’s rated for 220/240V AC at 50/60 Hz, so it works across a range of control voltages without needing to redesign your system.

What stands out here is the build. The coil is fully encapsulated, which helps protect it from dust, vibration, and general wear you see in real-world environments. Once it’s in place, it’s designed to hold up and keep things running consistently.

If you're dealing with a failed coil or adjusting your control voltage, this is a practical, no-nonsense replacement that does exactly what it’s supposed to do.

Key Features and Benefits

• Replace the coil, not the whole unit – A straightforward way to fix your equipment without overspending
• Works across common voltages – Rated for 220/240V AC, 50/60 Hz
• Compatible with Type S equipment – Fits 8502SF contactors, 8536SF starters, and 8903SV lighting contactors
• Encapsulated for protection – Helps guard against dust, moisture, and vibration
• Strong pickup, steady hold – Reliable inrush performance with efficient sealed operation
• Easy to wire in – Screw clamp terminals keep installation simple and secure

Technical Specifications

• Catalog Number: 31091-400-47
• Product Type: Replacement Coil
• NEMA Size: 4
• Rated Voltage:240V AC @ 60 Hz
  220V AC @ 50 Hz
• Inrush Power: 1185 VA (60 Hz) / 1260 VA (50 Hz)
• Sealed Consumption: 85 VA (60 Hz) / 89 VA (50 Hz)
• Dimensions:
  • Height: 2.9 in
  • Width: 2.6 in
  • Depth: 2.5 in
• Connection Type: Screw Clamp
• Construction: Fully Encapsulated

Material Compliance and Certifications

• Produced by Schneider Electric, a widely trusted manufacturer in industrial electrical equipment
• Built to meet applicable NEMA standards for motor control components
• Suitable for use in properly specified commercial and industrial systems
• Includes an 18-month manufacturer warranty

Where It Works Best

• You’ll typically find this coil used in:
• Industrial motor control systems
• Commercial HVAC equipment
• Lighting control panels using 8903SV contactors
• Facilities running NEMA Size 4 contactors and starters
• Maintenance and repair situations where fast turnaround matters