31074-400-38 - Square D Coil

31074-400-38 - Square D Coil

If a contactor or starter suddenly stops working, there’s a good chance the coil is the culprit—not the entire unit. The 31074-400-38 replacement coil is designed to solve that exact problem without forcing you into a full replacement.

This coil fits Type S contactors and starters, including common setups used in motor control and lighting applications. Swap it in, and you can run your system on 110/120V AC (50/60 Hz) without changing out the whole assembly. That’s time saved, money saved, and less disruption overall.

It’s built the way you’d expect for real job-site conditions. The coil is fully encapsulated, so it holds up better against dust, vibration, and everyday wear. On startup, it delivers solid inrush power to pull in cleanly, then settles into efficient operation without excessive draw. Nothing flashy—just dependable performance where it counts.

Install is straightforward too. The screw clamp terminals keep wiring secure, and there’s no complicated setup involved. If you’ve replaced a coil before, this will feel familiar.

Key Features and Benefits

• Made for Type S contactors and starters—including several common models
• Works with 110/120V AC control circuits (50/60 Hz)
• Strong inrush performance for reliable engagement
• Fully encapsulated to handle tougher environments
• Simple, secure wiring with screw clamp connections
• Helps avoid the cost of replacing the entire contactor or starter

Technical Specifications

• Catalog Number: 31074-400-38
• NEMA Size: 3
• Voltage Rating: 110/120V AC (50/60 Hz)
• Inrush Power: 700 VA / 678 VA
• Average Consumption: 46 VA / 47 VA
• Dimensions:
  • 2.9 in (H)
  • 2.6 in (W)
  • 2.09 in (D)
• Terminal Type: Screw clamp
• Construction: Encapsulated coil

Material Compliance and Certifications

• Built to meet standard expectations for industrial motor control components
• Encapsulated design helps protect internal parts in typical commercial and industrial settings
• Backed by an 18-month manufacturer warranty

Where It Works Best

• Motor starters in industrial equipment
• HVAC systems using contactors for control
• Lighting contactors in commercial buildings
• Maintenance jobs where speed matters
• Situations where a voltage change is needed without replacing the full unit