
Copeland 912-3040-00 Contactor
The Copeland 912-3040-00 Contactor is a heavy-duty 3-pole HVAC contactor engineered for demanding commercial refrigeration and air conditioning applications. Rated for 40 amp inductive loads, this component features a 24V coil, ensuring seamless integration with standard low-voltage control circuits. Designed to handle the high inrush currents typical of large compressor motors, it provides reliable switching and high conductivity through its silver cadmium oxide contacts. The 3-pole configuration makes it an essential replacement for three-phase systems requiring consistent phase balance and electrical isolation. Its compact footprint allows for straightforward installation within existing control panels or motor starter enclosures. When replacing a definite purpose contactor, verifying the full-load amperage (FLA) and coil voltage is critical to prevent premature coil burnout or pitted contacts. This OEM-spec component ensures system durability and maintains the electrical integrity of the compressor circuit under high-cycle conditions.
Key Benefits for Technicians- High Amperage Rating: Reliable 40A 3-pole contactor performance for commercial-grade AC units and refrigeration racks.
- Precision Control: Standard 24V contactor coil allows for easy troubleshooting and compatibility with most thermostat and safety controller outputs.
- Durable Construction: Built to withstand high-frequency cycling without significant mechanical wear or contact welding.
- OEM Compatibility: Exact electrical match for Copeland compressor contactor requirements, ensuring correct arc suppression and heat dissipation.
Can I use this 3-pole contactor on a single-phase system?
While technically possible by utilizing only two poles, it is best practice to match the pole count to the system phase to ensure proper clearance and terminal alignment within the control box.
What causes the 912-3040-00 coil to chatter or hum?
Chattering is typically caused by low voltage at the 24V coil terminals, often due to a failing transformer or high resistance in the safety circuit. Verify primary and secondary voltage under load.
Is the 40-amp rating for resistive or inductive loads?
This unit is rated for 40 FLA (Full Load Amps) inductive, making it suitable for motor applications. It typically carries a higher rating for purely resistive heating loads.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $64.14
-65%$64.14
$22.45Copeland 912-3040-00 Contactor
The Copeland 912-3040-00 Contactor is a heavy-duty 3-pole HVAC contactor engineered for demanding commercial refrigeration and air conditioning applications. Rated for 40 amp inductive loads, this component features a 24V coil, ensuring seamless integration with standard low-voltage control circuits. Designed to handle the high inrush currents typical of large compressor motors, it provides reliable switching and high conductivity through its silver cadmium oxide contacts. The 3-pole configuration makes it an essential replacement for three-phase systems requiring consistent phase balance and electrical isolation. Its compact footprint allows for straightforward installation within existing control panels or motor starter enclosures. When replacing a definite purpose contactor, verifying the full-load amperage (FLA) and coil voltage is critical to prevent premature coil burnout or pitted contacts. This OEM-spec component ensures system durability and maintains the electrical integrity of the compressor circuit under high-cycle conditions.
Key Benefits for Technicians- High Amperage Rating: Reliable 40A 3-pole contactor performance for commercial-grade AC units and refrigeration racks.
- Precision Control: Standard 24V contactor coil allows for easy troubleshooting and compatibility with most thermostat and safety controller outputs.
- Durable Construction: Built to withstand high-frequency cycling without significant mechanical wear or contact welding.
- OEM Compatibility: Exact electrical match for Copeland compressor contactor requirements, ensuring correct arc suppression and heat dissipation.
Can I use this 3-pole contactor on a single-phase system?
While technically possible by utilizing only two poles, it is best practice to match the pole count to the system phase to ensure proper clearance and terminal alignment within the control box.
What causes the 912-3040-00 coil to chatter or hum?
Chattering is typically caused by low voltage at the 24V coil terminals, often due to a failing transformer or high resistance in the safety circuit. Verify primary and secondary voltage under load.
Is the 40-amp rating for resistive or inductive loads?
This unit is rated for 40 FLA (Full Load Amps) inductive, making it suitable for motor applications. It typically carries a higher rating for purely resistive heating loads.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Product Information
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Description
The Copeland 912-3040-00 Contactor is a heavy-duty 3-pole HVAC contactor engineered for demanding commercial refrigeration and air conditioning applications. Rated for 40 amp inductive loads, this component features a 24V coil, ensuring seamless integration with standard low-voltage control circuits. Designed to handle the high inrush currents typical of large compressor motors, it provides reliable switching and high conductivity through its silver cadmium oxide contacts. The 3-pole configuration makes it an essential replacement for three-phase systems requiring consistent phase balance and electrical isolation. Its compact footprint allows for straightforward installation within existing control panels or motor starter enclosures. When replacing a definite purpose contactor, verifying the full-load amperage (FLA) and coil voltage is critical to prevent premature coil burnout or pitted contacts. This OEM-spec component ensures system durability and maintains the electrical integrity of the compressor circuit under high-cycle conditions.
Key Benefits for Technicians- High Amperage Rating: Reliable 40A 3-pole contactor performance for commercial-grade AC units and refrigeration racks.
- Precision Control: Standard 24V contactor coil allows for easy troubleshooting and compatibility with most thermostat and safety controller outputs.
- Durable Construction: Built to withstand high-frequency cycling without significant mechanical wear or contact welding.
- OEM Compatibility: Exact electrical match for Copeland compressor contactor requirements, ensuring correct arc suppression and heat dissipation.
Can I use this 3-pole contactor on a single-phase system?
While technically possible by utilizing only two poles, it is best practice to match the pole count to the system phase to ensure proper clearance and terminal alignment within the control box.
What causes the 912-3040-00 coil to chatter or hum?
Chattering is typically caused by low voltage at the 24V coil terminals, often due to a failing transformer or high resistance in the safety circuit. Verify primary and secondary voltage under load.
Is the 40-amp rating for resistive or inductive loads?
This unit is rated for 40 FLA (Full Load Amps) inductive, making it suitable for motor applications. It typically carries a higher rating for purely resistive heating loads.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












