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Nidec-Secop 117U4127 Relay/Overload Combo

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Special Price $20.03 Regular Price $26.04
In stock
SKU
117U4127
The Nidec-Secop 117U4127 Relay/Overload Combo is a package of an integrated compressor starting and protection component in air conditioning and heat pump HVAC systems. It is a fusion of a start relay which activates the start winding of the compressor, and an overload protector, which breaks the power supply in case the current or temperature surpasses safe limits. It is installed in the electrical compartment of the outside unit and is connected to the compressor terminals which assists in ensuring a stable start of the motor and prevents electrical and thermal overloads.
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HVAC Controls & Electrical, Relays,
Manufacturer:
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Manufacturer Name: Nidec-Secop
Product Number: 117U4127
OEM Part Number: 117U4127
Product Description: Relay/Overload Combo
Weight:0.1lbs/45.36g

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Product Questions (2)
Customer Questions
What maintenance is required for the Nidec-Secop 117U4127 Relay/Overload Combo?

Regularly inspect the relay and overload combo for signs of corrosion, loose connections, or physical damage. Ensure terminals are clean and securely fastened. Proper maintenance helps prevent electrical faults and ensures reliable compressor operation. Always disconnect power before servicing.

What are common issues with the Nidec-Secop 117U4127 Relay/Overload Combo?

  • Failure to start the compressor.
  • Overheating or tripping during operation.
  • Loose or corroded electrical connections.
  • Intermittent or inconsistent switching.

Installation Steps

Step1: Turn off power to the compressor or system before starting.

Step2: Remove the access panel to reach the existing relay/overload components.

Step3: Disconnect the old relay and overload, noting wire connections.

Step4: Install the new combo unit in the same position and reconnect all wires securely.

Step5: Ensure the unit is seated properly and terminals are tight.

Step6: Restore power and test compressor operation while following all safety precautions.