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Schneider Electric (Square D) LV851101SP ERMS Switch Kit 24VDC

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Special Price $751.26 Regular Price $833.90
In stock
SKU
LV851101SP
The Schneider Electric (Square D) LV851101SP ERMS Switch Kit is an electrical component used to sense and react to certain conditions in the elements by opening or closing a control circuit at 24 VDC in HVAC systems. It is installed in control panels or equipment cabinets, and interacts with thermostats, sensors, and control boards to assist in triggering the monitored parameters to achieve set thresholds. It has a stable input to the control logic that controls the operation of blowers, compressors and other parts. It allows safer operation, of equipment by facilitating coordinated electrical control.
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HVAC Controls & Electrical, Switches,
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Product Questions (2)
Customer Questions
What maintenance is required for the Schneider Electric (Square D) LV851101SP ERMS Switch Kit?

Regularly inspect the switch kit for dust, corrosion, or loose wiring connections. Clean contacts if accessible and ensure all mounting hardware is secure. Follow electrical safety precautions when working with circuits to prevent shocks or short circuits.

What are common issues with the Schneider Electric (Square D) LV851101SP ERMS Switch Kit?

  • Switch fails to actuate consistently.
  • Contacts become oxidized or dirty.
  • Wiring connections loosen over time.
  • Mechanical components stick or wear prematurely.

Installation Steps

Step 1: Turn off power to the unit and ensure all circuits are de-energized.

Step 2: Remove the access panel to reach the existing switch assembly.

Step 3: Disconnect wiring and remove mounting screws from the old switch.

Step 4: Install the new ERMS switch kit, securing it properly in place.

Step 5: Reconnect all wiring according to the schematic or labels.

Step 6: Replace the access panel, restore power, and test switch operation.