3 Pole 40 Amp Contactor 120 VAC Coil Definite Purpose Contactor

Key Features

• Poles: 3 Pole, Normally Open (NO)
• Amperage Rating: 40 Ampere (A) Full Load Amps (FLA)
• Coil Voltage: 110/120 Volts AC (VAC)
• Frequency: 50/60 Hertz (Hz)
• Maximum Voltage: 600 VAC
• Contacts: Silver alloy composition
• Terminals: Lug style for secure connections
• Housing: Durable, high-impact plastic construction
• Certification: UL Listed

Replaces / Cross-Reference Part Numbers

• Serves as a universal replacement for definite purpose contactors with matching electrical specifications.
• Suitable for replacing 20A, 25A, 30A, 35A, and 40A 3-pole contactors where the application load does not exceed 40A.

Compatibility & Fitment

• Designed for commercial and residential applications.
• Commonly used in HVAC systems, including air conditioners and heat pumps.
• Suitable for refrigeration units, motor loads, and lighting control systems.

When to Replace

• Visible signs of physical damage, such as burnt contacts, pitting, or a melted housing.
• Audible buzzing, humming, or chattering from the contactor during operation.
• The controlled equipment fails to start (contactor not closing) or will not shut off (contactor welded shut).
• Intermittent or unreliable operation of the system.
• The coil is open or shorted, preventing the contactor from energizing.

Installation Tips

• Disconnect all power to the unit before beginning installation or service.
• Verify that the control circuit voltage matches the contactor's 120 VAC coil rating.
• Ensure all electrical connections are tightened securely to the lug terminals to prevent overheating.
• Mount the contactor securely on a clean, flat surface.
• Professional installation by a qualified technician is recommended.