Siemens 75D70131H Coil – 75D Series – 440/480VAC Magnetic Contactor & Motor Starter Coil (NEMA Size 4)

The 75D70131H is a heavy-duty AC magnetic coil used in Siemens / Furnas 75D Series NEMA contactors and motor starters. It is designed for operation at 440/480VAC, making it suitable for high-voltage industrial control systems. This coil energizes the contactor mechanism, enabling reliable switching of large motors and electrical loads in demanding industrial environments.

The 75D70131H is commonly used as a replacement coil in Size 4 NEMA starters, supporting multiple Siemens motor starter classes in motor control centers and industrial automation systems.

Voltage and Rating

• Coil Voltage: 440/480VAC
• Frequency: 50/60 Hz
• Coil Type: AC magnetic operating coil
• Frame Type: 75D
• NEMA Size: 4

Key Specifications

• Product Type: Contactor / Motor Starter Coil
• Part Number: 75D70131H
• Manufacturer: Siemens / Furnas
• Series: 75D Series
• Function: Electromagnetic actuation of contactor
• Application Class Compatibility:
  • Class 14
  • Class 17
  • Class 18
  • Class 22
  • Class 25
  • Class 26
  • Class 30
  • Class 32
  • Class 40
  • Class 43

Technical Characteristics

• Function: Converts control voltage into magnetic force to operate contactor
• Operation: Heavy-duty coil designed for industrial switching cycles
• Design: Replacement coil kit for Siemens 75D frame starters
• System Role: Control circuit actuator (does not carry load current)
• Performance: Built for high-voltage stability and thermal endurance

System Role

This coil is responsible for:

• Energizing the contactor to close/open main power contacts
• Enabling motor ON/OFF control in industrial systems
• Working with push buttons, PLC outputs, or control relays
• Providing reliable switching for heavy motor loads

Applications

• Motor control centers (MCCs)
• Industrial automation systems
• Heavy-duty pump and compressor starters
• HVAC systems
• Conveyor and production lines
• Process control equipment

Returns are easy

You may return items within 30 days of delivery for a refund.

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