123280P1S Liebert Contactor

Overview

The Liebert 123280P1S is an official OEM 3-pole contactor designed specifically for Liebert HVAC equipment. This electromagnetic switch is a critical component for controlling the power supply to high-draw parts such as motors and compressors. By responding to signals from the system’s thermostat or control unit, it precisely regulates electricity flow to ensure effective operation while preventing overheating or electrical failures.

Features

• Three-pole configuration for handling multi-phase electrical loads
• Integrated auxiliary contacts (NO/NC) for enhanced system monitoring and control flexibility
• Electromagnetic operation for precise, reliable switching
• Designed as a direct OEM replacement to ensure compatibility and performance
• Heavy-duty construction tailored for industrial and data center cooling environments

Specifications

• Manufacturer: Liebert (Emerson/Vertiv)
• Model/Part Number: 123280P1S (Cross-ref: 123280P1, 50PM27)
• Coil Voltage: 24V AC
• Amperage Rating: 30A Inductive / 40A Resistive
• Horsepower Rating: Supports up to 7.5 HP or 10 HP depending on application
• Number of Poles: 3
• Weight: Approximately 1.0 – 1.2 lbs
• Origin: United States

Applications

• Replacement contactor for Liebert precision cooling and HVAC units
• Power control for compressors and blower motors in data center environmental systems
• Integration into air conditioning and refrigeration systems requiring 24V control circuits
• Universal use in compatible industrial electrical panels and motor starters