Description
Mars 17425 — 40A 2-Pole 24V Definite Purpose Contactor
The Mars 17425 is a heavy-duty definite purpose contactor engineered for dependable performance in residential and light commercial HVAC systems. Rated at 40 amps with a 2-pole configuration and a 24-volt coil, this contactor is purpose-built to handle the demanding switching cycles found in air conditioning compressors, condensing units, and other motor-load applications.
Key Features
- 40-amp continuous current rating for robust load handling
- 2-pole (double-pole) contact configuration
- 24V AC coil voltage — compatible with standard HVAC control circuits
- Definite purpose design optimized for HVAC compressor and motor switching
- Compact, industry-standard form factor for straightforward installation and replacement
- Durable construction for extended service life in high-cycle environments
Applications
- Air conditioning condensing units
- Heat pump systems
- Refrigeration compressors
- Commercial and residential HVAC equipment
- Motor load switching in light commercial applications
Why Choose Mars Contactors?
Mars has long been a trusted name in HVAC electrical components. Their definite purpose contactors are designed to meet the rigorous demands of the HVAC industry, offering consistent performance, easy installation, and broad compatibility with OEM and replacement applications. The 17425 is a go-to solution for technicians seeking a reliable, cost-effective contactor for 24V control systems.
Specifications
- SKU: 17425
- Brand: Mars
- Amperage: 40A
- Poles: 2-Pole (Double Pole)
- Coil Voltage: 24V
- Type: Definite Purpose Contactor (DP)







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