Airotronics

Versatile and reliable, timers and controls from Airotronics are putting power to work in transportation and industry, agriculture and appliances, manufacturing and services across North America and around the world. By managing the flow and form of power in a wide variety of specialized applications, our innovative products make things happen at the right time in your systems, environments, vehicles and inventions.

Delay On Make
Off Delay, Delay on Release, Delay on De-Energization
When power is applied to timer input voltage terminals, the time delay begins.When the time delay expires, the timer output relay is energized.Input voltage must be removed to reset the time delay and de-energize the timer output relay.

Delay on Break
Off Delay, Delay on Release, Delay on De-Energization
Power must be applied continuously to timer input voltage terminals and a normally open, dry contact switch attached to timer initiate terminal(s).When the initiate switch closes, the timer output relay is energized.When the initiate switch re-opens the time delay begins.

Repeat Cycle
Recycle Timer, Recycling Timer, Flasher.
When power is applied to timer input voltage terminals, the timer output relay is energized for the duration of time delay.
When the time delay expires, the timer output relay is de-energized for the duration of time delay. Timer output on / off cycling repeats until power is removed from timer input voltage terminals.

Single Shot
One Shot
Power must be applied continuously to timer input voltage terminals and a normally open, dry contact switch attached to timer initiate terminal(s).When the initiate switch closes, the timer output relay is energized and the time delay begins.Opening and closing the initiate switch during the time delay is ignored.

Interval On
Interval, Interval Delay
When power is applied to the input voltage terminals, the load is energized immediately and the time delay cycle starts. At the end of the delay period, the timer transfers back to its pre-power position.Removal and re-application of input voltage resets the timer.

True Off
True Off Delay
Power must be applied continuously to timer input voltage terminals and a normally open, dry contact switch attached to timer initiate terminal(s). When power is removed from timer input voltage terminals, the time delay begins.When the time delay expires, the timer output relay is de-energized.

Anti-Short-Cycle
Anti-Short-Cycle Timer
Anti-short-cycle timer prevents premature cycling of compressors in refrigeration, air conditioning and heat pumps, thereby reducing nuisance tripping of fuse or circuit breaker. When power is applied (i.e. thermostat closes), the load energizes.

Multifunction Relay
Wide range of time delay setting using dip switch adjustment or on board potentiometers. Available in three separate models covering 12 timing modes and 1-30 amp load switching.

Current Sensors
CURRENT SENSORS: RELAY AND SOLID STATE SERIES
CS Relay: Over-current and under-current sensing. HCS Solid State: High range over-current sensing, up to 60 amps. Current Sensors can be customized for your application.

Custom Solutions
CUSTOM PRODUCTS: YOU DREAM IT UP, WE'LL GET IT DONE
A multitude of options, plus in-house engineering, and direct communication throughout development and testing, ensures success for the most innovative or specialized controls. We can create a one-of-a kind solution that meets your needs perfectly.

Accessories
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Potentiometers, Mounting Brackets, Knobs, Tie-Downs, Sockets, Transient Suppressors