Zettler AZ850 Series Relays Microminiature Polarised PCB Mounting – Zettler Electronics AZ850-24, A 1A 24V DC microminiature PCB mounting polarised relay with a high sensitivity, fast-switching single side stable coil. Suitable for a wide range of applications. Zettler Electronics AZ850-24 PCB Mount Relay 2 CO, DPDT