Specifications

2
Curtis 1204M/1205M/1209M/1221M Manual
✓ Plug braking diode internal to controller.
✓ Undervoltage cutback function protects against low battery
voltage, including low voltage caused by external loads.
✓ Easily programmable through the Curtis handheld
programmer or PC programming station.
Familiarity with your Curtis 1204M/05M/09M/21M controller will help you
install and operate it properly. We encourage you to read this manual carefully.
If you have questions, please contact the Curtis office nearest you.
1 — OVERVIEW