31074-400-47 - Square D Coil

31074-400-47 - Square D Coil

When a coil fails, everything stops. And in most cases, the contactor itself is still fine—you just need the right replacement coil to get things moving again.

The 31074-400-47 replacement coil is built for exactly that situation. It fits a range of NEMA Size 3 contactors and starters, including popular models like the 8502SE and 8536SE, so you can swap it in and get back up and running without replacing the whole unit.

It’s rated for 220/240V AC at 50/60 Hz, which covers a lot of common applications in industrial and commercial setups. Whether you’re dealing with motor control or lighting contactors, this coil is designed to perform consistently once it’s installed.

One thing worth noting—this coil is fully encapsulated, which helps protect it from dust, moisture, and general wear. That matters in real environments where conditions aren’t perfect. Installation is straightforward too, thanks to screw clamp terminals that hold solid and don’t require anything fancy.

If you’re troubleshooting a failed coil and need a reliable replacement without overthinking it, this is a practical, proven option.

Key Features and Benefits

• Replace the coil—not the whole unit—and save time and money
• Works with 220/240V AC (50/60 Hz) control circuits
• Handles startup demand with up to 700 VA inrush power
• Runs efficiently with low sealed consumption (~46–47 VA)
• Encapsulated design helps protect against dust and moisture
• Screw clamp terminals make installation simple and secure
• Compatible with several NEMA Type S contactors and starters

Technical Specifications

• Catalog Number: 31074-400-47
• Product Type: Coil
• Voltage Rating:220V AC (50 Hz)
  240V AC (60 Hz)
• NEMA Size: 3
• Inrush Power: 678–700 VA
• Average Consumption: 46–47 VA
• Dimensions:
  • Height: 2.9 in (73 mm)
  • Width: 2.6 in (65 mm)
  • Depth: 2.09 in (53.2 mm approx.)
• Connection Type: Screw Clamp
• Construction: Encapsulated

Material Compliance and Certifications

• Meets standard requirements for NEMA motor control components
• Designed for safe use in industrial and commercial electrical systems
• Encapsulated construction helps extend service life
• Country of Origin: Mexico
• Warranty: 18 months

Where It Works Best

• Motor starters in industrial equipment
• HVAC systems in commercial buildings
• Lighting contactors and control panels
• Maintenance and repair jobs where fast turnaround matters
• Any setup using NEMA Size 3 contactors or starters