Description
The Lennox 45H03 is a genuine OEM Deltrol double pole double throw (DPDT) relay designed for use in Lennox HVAC systems. Operating on a 24V control voltage, this relay provides dependable switching performance in heating and cooling control circuits, making it an essential component for system operation and control sequencing.
Key Features
- Genuine Lennox OEM replacement relay — model 45H03
- Deltrol 275TM relay design for proven switching reliability
- 24V coil voltage — compatible with standard HVAC low-voltage control circuits
- Double Pole Double Throw (DPDT) configuration for versatile switching applications
- Engineered to meet original equipment specifications for Lennox systems
- Suitable for use in heating, cooling, and air handling control circuits
Application
The 45H03 relay is a direct OEM replacement part for compatible Lennox furnaces, air handlers, and HVAC control systems. Its DPDT switching configuration allows it to control two separate circuits simultaneously, making it ideal for sequencing and multi-stage control applications. The 24V coil rating aligns with standard thermostat and control board low-voltage circuits found throughout residential and light commercial HVAC equipment.
Specifications
- SKU: 45H03
- Brand: Lennox / Deltrol
- Model: 275TM
- Coil Voltage: 24V
- Configuration: DPDT (Double Pole Double Throw)
- OEM Part: Yes
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