Jaycar SPDT 30A Horn Relay – 24V Double-Throw Automotive Relay for Trucks & Commercial Vehicles (SY4047)

You're running a 24 V system on a truck or commercial rig and your horn switch is struggling under the load. This Jaycar SPDT relay handles 30 A at 24 V DC in the same tiny 22 × 15 mm footprint as its 12 V siblings. Single-pole double-throw, so you can changeover between two horn circuits or run a fog-lamp setup without doubling up on switches

• 24 V DC coil – built for truck and commercial vehicle electrical systems
• 30 A contact rating for air horns, fog lamps, and driving lights
• Single-pole double-throw (SPDT) changeover in one compact package
• 22 × 15 mm footprint fits tight engine-bay or cab wiring spaces
• Automotive-grade contacts for repeated high-current switching