You've got a high-current job to do and you need a relay that actually switches 30A without flaking out. This SPST horn relay handles it. Designed for auto horns, but just as happy running your burglar alarm solenoid, an ignition cutout, a CB transmitter, or a pair of roof spotlights. Contacts are normally open — power the coil and the circuit closes. Simple. Pair it with base SY4069 and you're mounted, wired, and done before your coffee goes cold
| brand | Jaycar |
| type | Horn Relay |
| contact_configuration | SPST |
| state | Normally Open |
| current_rating | 30A |
| compatible_base | SY4069 |
| application | Automotive / High-current switching |