
Copeland Comfort Control (White Rodgers) 49M11-843 Contactor
The Copeland Comfort Control 49M11-843 SureSwitch is an advanced electronic universal contactor designed to replace standard definite purpose contactors in HVAC and refrigeration systems. As a direct replacement for HN52TC024 and 49P11-843, this microprocessor-controlled component is engineered to provide up to 5x the operational life of traditional mechanical relays. By utilizing a zero-chatter latching relay and internal smart logic, it effectively eliminates contact pitting and welding. This 40 Amp contactor features a totally sealed design to prevent ingress from ants and debris, ensuring reliable operation in harsh environments. With multi-volt compatibility (accepting 24V, 120V, 208V, and 240V coil signals), it streamlines inventory for technicians. Integrated brownout protection and a short-cycle timer provide essential safeguards for the compressor, while the tri-color LED offers immediate diagnostic feedback and cycle count data.
Key Benefits for Contractors:
- Universal Application: Replaces most single-pole and 1.5-pole contactors, reducing the need for multiple van stock items.
- Enhanced Durability: Engineered for 5x the life of mechanical alternatives by minimizing arcing through precise microprocessor control.
- System Protection: Built-in line voltage brownout protection and a 5-minute short-cycle delay prevent compressor damage during power fluctuations.
- Environmental Protection: The sealed housing prevents pest-related failures, a common issue with standard open-frame contactors.
- Advanced Diagnostics: Tri-color LED indicators provide clear status updates and assist in rapid troubleshooting on the job site.
Common Questions & Technical Support:
Can the 49M11-843 replace a 2-pole contactor?
Yes, it is designed as a universal upgrade for 1-pole and 1.5-pole contactors, and can replace 2-pole versions in applications where the second pole is not used as a safety break.
What do the tricolor LED codes mean?
The LED provides real-time diagnostics: Green indicates normal operation, Yellow signals a short-cycle delay or brownout condition, and Red indicates a component or system fault.
How does this handle low voltage scenarios?
The SureSwitch monitors incoming power; if it detects a brownout (voltage below 18.7V for 24V systems), it will automatically disconnect the load to prevent motor burnout.
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: $68.88
-65%$68.88
$24.11Copeland Comfort Control (White Rodgers) 49M11-843 Contactor
The Copeland Comfort Control 49M11-843 SureSwitch is an advanced electronic universal contactor designed to replace standard definite purpose contactors in HVAC and refrigeration systems. As a direct replacement for HN52TC024 and 49P11-843, this microprocessor-controlled component is engineered to provide up to 5x the operational life of traditional mechanical relays. By utilizing a zero-chatter latching relay and internal smart logic, it effectively eliminates contact pitting and welding. This 40 Amp contactor features a totally sealed design to prevent ingress from ants and debris, ensuring reliable operation in harsh environments. With multi-volt compatibility (accepting 24V, 120V, 208V, and 240V coil signals), it streamlines inventory for technicians. Integrated brownout protection and a short-cycle timer provide essential safeguards for the compressor, while the tri-color LED offers immediate diagnostic feedback and cycle count data.
Key Benefits for Contractors:
- Universal Application: Replaces most single-pole and 1.5-pole contactors, reducing the need for multiple van stock items.
- Enhanced Durability: Engineered for 5x the life of mechanical alternatives by minimizing arcing through precise microprocessor control.
- System Protection: Built-in line voltage brownout protection and a 5-minute short-cycle delay prevent compressor damage during power fluctuations.
- Environmental Protection: The sealed housing prevents pest-related failures, a common issue with standard open-frame contactors.
- Advanced Diagnostics: Tri-color LED indicators provide clear status updates and assist in rapid troubleshooting on the job site.
Common Questions & Technical Support:
Can the 49M11-843 replace a 2-pole contactor?
Yes, it is designed as a universal upgrade for 1-pole and 1.5-pole contactors, and can replace 2-pole versions in applications where the second pole is not used as a safety break.
What do the tricolor LED codes mean?
The LED provides real-time diagnostics: Green indicates normal operation, Yellow signals a short-cycle delay or brownout condition, and Red indicates a component or system fault.
How does this handle low voltage scenarios?
The SureSwitch monitors incoming power; if it detects a brownout (voltage below 18.7V for 24V systems), it will automatically disconnect the load to prevent motor burnout.
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.
Product Information
Product Information
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Description
The Copeland Comfort Control 49M11-843 SureSwitch is an advanced electronic universal contactor designed to replace standard definite purpose contactors in HVAC and refrigeration systems. As a direct replacement for HN52TC024 and 49P11-843, this microprocessor-controlled component is engineered to provide up to 5x the operational life of traditional mechanical relays. By utilizing a zero-chatter latching relay and internal smart logic, it effectively eliminates contact pitting and welding. This 40 Amp contactor features a totally sealed design to prevent ingress from ants and debris, ensuring reliable operation in harsh environments. With multi-volt compatibility (accepting 24V, 120V, 208V, and 240V coil signals), it streamlines inventory for technicians. Integrated brownout protection and a short-cycle timer provide essential safeguards for the compressor, while the tri-color LED offers immediate diagnostic feedback and cycle count data.
Key Benefits for Contractors:
- Universal Application: Replaces most single-pole and 1.5-pole contactors, reducing the need for multiple van stock items.
- Enhanced Durability: Engineered for 5x the life of mechanical alternatives by minimizing arcing through precise microprocessor control.
- System Protection: Built-in line voltage brownout protection and a 5-minute short-cycle delay prevent compressor damage during power fluctuations.
- Environmental Protection: The sealed housing prevents pest-related failures, a common issue with standard open-frame contactors.
- Advanced Diagnostics: Tri-color LED indicators provide clear status updates and assist in rapid troubleshooting on the job site.
Common Questions & Technical Support:
Can the 49M11-843 replace a 2-pole contactor?
Yes, it is designed as a universal upgrade for 1-pole and 1.5-pole contactors, and can replace 2-pole versions in applications where the second pole is not used as a safety break.
What do the tricolor LED codes mean?
The LED provides real-time diagnostics: Green indicates normal operation, Yellow signals a short-cycle delay or brownout condition, and Red indicates a component or system fault.
How does this handle low voltage scenarios?
The SureSwitch monitors incoming power; if it detects a brownout (voltage below 18.7V for 24V systems), it will automatically disconnect the load to prevent motor burnout.
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.












