The Lennox 74W88 Relay-Protector Thermal Overload (OEM Part No. 102883-06) is engineered for precise motor protection in residential and light commercial HVAC systems. This component combines relay switching and thermal overload protection to guard against excessive current draw and overheating, enhancing system reliability and extending motor life.Key Features and Specifications:
- Part Numbers: 74W88 / 102883-06
- Type: Relay with integrated thermal overload protector
- Function: Interrupts power to prevent motor burnout during overload or high temperature conditions
- Voltage Rating: 120/240V AC
- Thermal Trip Range: Factory-calibrated for specific Lennox motor configurations
- Current Rating: Optimized for fractional to 1 HP motors (varies by system)
- Mounting Style: Snap-in bracket with terminal connections
- Reset Type: Automatic thermal reset for user-free restoration after cooling
- Housing Material: High-temperature resistant thermoplastic
- Application: Blower motor protection in air handlers, furnaces, and rooftop units
- Compliance: OEM-approved for Lennox systems, meets UL standards
