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Marley Engineered Products 4520-2027-000 Manual Reset Limit Switch 150°F

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5 5 1
1  Review Add Your Review
Special Price $34.44 Regular Price $44.77
In stock
SKU
4520-2027-000
Marley Engineered Products 4520-2024-000 Limit Switch is a safety part that is used to maintain precise temperature in HVAC systems. With a 25°F differential, this limit switch will activate at 120°F to protect against overheating by breaking the circuit when the temperature exceeds the safe limit. Built to withstand the tough environment and to provide durable productivity for the workers. The prevents system damage or failure due to excessive heat. It is easy to install and suitable for use in places that demand safe heating and cooling systems.
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HVAC Controls, HVAC Limit Switch
Manufacturer:
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Specifications

  • Type: Limit Switch
  • Reset Type: Manual Reset
  • Temperature: 150°F
Manufacturer Name: Marley Engineered Products
Product Number: 4520-2027-000
OEM Part Number: 4520-2027-000
Product Description: 150F M/R Limit Switch
Weight:0.04lbs/18.14g

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Product Questions (2)
Customer Questions
What maintenance is required for the Marley Engineered Products 4520-2027-000 Limit Switch?

Regularly inspect the switch for dust, corrosion, or loose connections. Test its operation periodically to ensure proper tripping at set temperatures. Clean contacts carefully and follow safety precautions when handling electrical components to prevent shocks or malfunctions.

What are common issues with the Marley Engineered Products 4520-2027-000 Limit Switch?

  • Failure to trip at the designated temperature.
  • Corrosion or buildup on contacts.
  • Loose wiring causing intermittent operation.
  • Mechanical sticking preventing proper reset.
  • Inconsistent temperature sensing.

Installation Steps

Step 1: Turn off power to the system to prevent electrical hazards.

Step 2: Remove the old limit switch from its mounting location.

Step 3: Install the new manual reset switch securely in place.

Step 4: Connect wiring according to the system diagram.

Step 5: Ensure the switch is positioned to activate.

Step 6: Restore power and test the system to confirm proper operation.