The SAK-24 provides a wireless solution to control loads of both normally open and normally closed devices with a dual form “C” dry contact. The contacts are rated for up to 5 amps and 250 volts AC to control a broad range of applications. The SAK-24 is powered by 24 volts AC that can be derived from anywhere within the electrical system. A connection or control wire back to the generator or transfer switch is not required.
When a power outage occurs, and power is restored, the SAK-24 will energize the relays and begin to analyze the AC power from the input. When utility power is detected the SAK-24 will de-energize the relay after 2-5 minutes and enter into a sleep mode until the next outage occurs. When generator voltage is detected the relay will remain energized and the SAK-24 will continue to monitor the AC line waveform. When utility power returns, the load will be restored after 2-5 minutes and the SAK-24 will enter sleep mode until a power outage occurs.
NO/NC dry-contact control input
Wireless technology drops load when generator power is detected
No control wires needed from the transfer switch
Can be installed anywhere in the electrical system
2 control dry contacts
Mounting flanges for surface mount installation
Quick connect SAK-24 terminal blocks
Time delay on function
User adjustable startup delay and under frequency restoration timers provide a unlimited number of devices with custom priority settings
Adjustable frequency drop out settings and delay times for under frequency detection
Precision adjustments from 50.0 to 59.9 Hz for frequency and from 00.1 to 10.9 seconds delay before load shedding
Nuisance load detection locks out load for an adjustable extended period of time whenever a restored load immediately overloads a generator
Switches at zero cross over point for maximum life expectancy
All adjustments are performed in minute with three buttons using the LCD display