Thermo King Thermal Overload Relay 12-18A numer418482
Official OEM Thermo King parts catalog entry for the Relay Overload 12-18A numer418482, verified by PEAK Thermo King and West Texas Thermo King Texas, Utah, Wyoming, Washington, Oregon, serving all of the USA.
Built for Performance: The Thermo King Relay Overload 12-18A numer418482 protects electric motors on temperature-critical equipment and preserves operation across Thermo King refrigeration systems. This OEM-grade overload relay monitors motor current and opens the circuit when sustained overcurrent occurs, safeguarding compressors and drive motors on reefer trailers and transport refrigeration units.
Key Features & Customer Benefits
- Adjustable 12–18 A Range – Matches common motor load profiles on medium-duty refrigeration compressors for precise motor protection.
- Thermal Overload Protection – Prevents motor damage during sustained overloads, supporting fleet uptime and reducing repair costs.
- Three-Phase Motor Support – Integrates with three-pole motor circuits used across transport refrigeration applications.
- Resettable Trip – Allows fast restoration of operation after faults clear, improving serviceability during roadside events.
- Auxiliary Signaling Compatibility – Enables alarm and control integration with Thermo King control panels for fleet monitoring and diagnostics.
- OEM Fitment for Thermo King Units – Fits common Thermo King refrigeration systems used in refrigerated trucks and reefer trailers for reliable installation.
Product Details
| Part Number | numer418482 |
| Product | Relay Overload 12-18A |
| Amperage Range | 12–18 A (adjustable) |
| Function | Thermal overload protection for electric motors |
| Application | Thermo King transport refrigeration units and reefer trailers |
Efficiency & Sustainability
The Relay Overload 12-18A numer418482 supports fuel-efficient cooling and consistent temperature control by protecting compressor motors from damage that leads to downtime and inefficient operation. This component integrates into Thermo King control environments, supporting fleet programs that prioritize uptime, regulatory compliance, and environmental responsibility, including systems that monitor performance such as Smart Reefer SR-4.
Installation & Maintenance Tips
Follow OEM wiring diagrams and torque specs for secure electrical connections. Inspect the relay during scheduled service intervals and after any fault events. Use compatible contactor interfaces and authorized Thermo King replacement parts for reliable fitment and repeatable service intervals.
Real-World Applications
The Relay Overload 12-18A numer418482 installs on refrigerated trucks, reefer trailers, and transport refrigeration units to protect compressor and drive motors during heavy loads, startup conditions, or mechanical stall events. Technician-ready design supports fast diagnostics and restores temperature control quickly to protect cargo integrity.
Available for installation and service in Amarillo, Lubbock, Odessa, and throughout West Texas.
Backed by Thermo King engineering and supported by certified technicians at West Texas Thermo King, a certified Thermo King dealership, this component delivers lasting reliability and uptime assurance for fleet operations.
For product verification or service assistance, call (806) 376-5837.
For current warranty eligibility or OEM replacement coverage, contact us for warranty information: https://www.trailerservicesofwesttexas.com/contact.
Frequently Asked Questions
Q: Is the Relay Overload 12-18A numer418482 compatible with Thermo King Precedent and S-610M units?
A: Yes. This overload relay integrates with Thermo King transport refrigeration platforms and common control panels used in Precedent and S-610M service environments.
Q: How does the relay help reduce downtime?
A: The relay trips on sustained overcurrent to prevent motor damage, enabling safer diagnostics and faster return to service once the fault condition clears.
Q: Can this relay be reset in the field?
A: Yes. The relay uses a resettable trip design to restore operation after verifying and resolving the underlying cause of the overload.
Q: Who verifies fitment and installation standards?
A: Fitment and installation follow Thermo King OEM guidelines and service procedures enforced by certified technicians at West Texas Thermo King.
Related Resources
Ask about fleet-wide parts programs through West Texas Thermo King.
Produced by a certified Thermo King dealership, West Texas Thermo King | a Division of PEAK Industrial. Servicing fleets across Amarillo, Lubbock, and Odessa.
Official OEM Thermo King parts catalog entry for the Relay Overload 12-18A numer418482, verified by PEAK Thermo King and West Texas Thermo King Texas, Utah, Wyoming, Washington, Oregon, serving all of the USA.
Built for Performance: The Thermo King Relay Overload 12-18A numer418482 protects electric motors on temperature-critical equipment and preserves operation across Thermo King refrigeration systems. This OEM-grade overload relay monitors motor current and opens the circuit when sustained overcurrent occurs, safeguarding compressors and drive motors on reefer trailers and transport refrigeration units.
Key Features & Customer Benefits
- Adjustable 12–18 A Range – Matches common motor load profiles on medium-duty refrigeration compressors for precise motor protection.
- Thermal Overload Protection – Prevents motor damage during sustained overloads, supporting fleet uptime and reducing repair costs.
- Three-Phase Motor Support – Integrates with three-pole motor circuits used across transport refrigeration applications.
- Resettable Trip – Allows fast restoration of operation after faults clear, improving serviceability during roadside events.
- Auxiliary Signaling Compatibility – Enables alarm and control integration with Thermo King control panels for fleet monitoring and diagnostics.
- OEM Fitment for Thermo King Units – Fits common Thermo King refrigeration systems used in refrigerated trucks and reefer trailers for reliable installation.
Product Details
| Part Number | numer418482 |
| Product | Relay Overload 12-18A |
| Amperage Range | 12–18 A (adjustable) |
| Function | Thermal overload protection for electric motors |
| Application | Thermo King transport refrigeration units and reefer trailers |
Efficiency & Sustainability
The Relay Overload 12-18A numer418482 supports fuel-efficient cooling and consistent temperature control by protecting compressor motors from damage that leads to downtime and inefficient operation. This component integrates into Thermo King control environments, supporting fleet programs that prioritize uptime, regulatory compliance, and environmental responsibility, including systems that monitor performance such as Smart Reefer SR-4.
Installation & Maintenance Tips
Follow OEM wiring diagrams and torque specs for secure electrical connections. Inspect the relay during scheduled service intervals and after any fault events. Use compatible contactor interfaces and authorized Thermo King replacement parts for reliable fitment and repeatable service intervals.
Real-World Applications
The Relay Overload 12-18A numer418482 installs on refrigerated trucks, reefer trailers, and transport refrigeration units to protect compressor and drive motors during heavy loads, startup conditions, or mechanical stall events. Technician-ready design supports fast diagnostics and restores temperature control quickly to protect cargo integrity.
Available for installation and service in Amarillo, Lubbock, Odessa, and throughout West Texas.
Backed by Thermo King engineering and supported by certified technicians at West Texas Thermo King, a certified Thermo King dealership, this component delivers lasting reliability and uptime assurance for fleet operations.
For product verification or service assistance, call (806) 376-5837.
For current warranty eligibility or OEM replacement coverage, contact us for warranty information: https://www.trailerservicesofwesttexas.com/contact.
Frequently Asked Questions
Q: Is the Relay Overload 12-18A numer418482 compatible with Thermo King Precedent and S-610M units?
A: Yes. This overload relay integrates with Thermo King transport refrigeration platforms and common control panels used in Precedent and S-610M service environments.
Q: How does the relay help reduce downtime?
A: The relay trips on sustained overcurrent to prevent motor damage, enabling safer diagnostics and faster return to service once the fault condition clears.
Q: Can this relay be reset in the field?
A: Yes. The relay uses a resettable trip design to restore operation after verifying and resolving the underlying cause of the overload.
Q: Who verifies fitment and installation standards?
A: Fitment and installation follow Thermo King OEM guidelines and service procedures enforced by certified technicians at West Texas Thermo King.
Related Resources
Ask about fleet-wide parts programs through West Texas Thermo King.
Produced by a certified Thermo King dealership, West Texas Thermo King | a Division of PEAK Industrial. Servicing fleets across Amarillo, Lubbock, and Odessa.