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AC Line Voltage Monitors

Models 120AZ and 240AZ
 

Single Phase Undervoltage Monitors
Models 120AZ and 240AZ
 
The 120AZ and 240AZ voltage sensors are intended for use as protection devices for electronic equipment in the event of a brown out condition.
Logic Funtion
When the input voltage to the module is greater than the Reset Point voltage, the relay will be energized and the LED will be illuminated indicating a normal line voltage condition. If, however, the input voltage drops below the Setpoint Voltage selected by the potentiometer, the relay will de-energize and the LED will turn off. The module will remain in this state as long as the input in less than Reset Point voltage.
Features
  • UR File #E65038
  • Low Cost Protection against "Brownouts"
  • High Reliability
  • 100% Life Tested
  • Form C Relay Output
  • On-board Trimpot for Setpoint Adjustment
  • Compact Size
  • Superior Transient Protection
  • Circuitry Completely Encapsulated
  • Flame Retardant and Solvent-Resistant Polyester Thermoplastic Housing
  • Made in U.S.A.
Specifications
Input
Operating Voltage Ranges:
     Model 120AZ: 0 to 132 VAC 50/60 Hz
     Model 240AZ: 0 to 264 VAC 50/60 Hz
Max. Power Consumtion:
     Model 120AZ: 2.6VA @132 VAC
     Model 240AZ: 4.5VA @264 VAC

Control
Adjustment: On-board trimpot
Undervoltage Setpoint Range:
     Model 120AZ: 78 - 99 VAC
     Model 240AZ: 156 - 199 VAC
Reset Point Voltage:
     Model 120AZ: 104 VAC
     Model 240AZ: 209 VAC
Repeatability:
     ±0.5% for fixed conditions
     ±1% over temperature range
Voltage Sense Accuracy: ±2% @25°C
Power Off Reset Time: 150 mS max.

Output
Type: Relay Contacts, S.P.D.T. (1 form C) Silver Cad. Oxide material
Rating: 8 Amp.max. resistive at 250 VAC & 30 VDC; 100 mA at 5 VDC minimum load current
Indication: Green LED; ‘ON’ for normal condition

Protection
Transient Voltage: 30 joule Metal Oxide Varistor
Dielectric breakdown:
    3000 Vrms terminal to mounting
    1500 Vrms input to output.
Insulation resistance:
    100 megohms min. between terminals and case

Mechanical
Termination: .25” x.032” male fast-on terminals
Mounting: Surface mount with one #8 screw
Life:
    10,000,000 cycles min. mechanical
    100,000 cycles min electrical

Environmental
Storage Temperature: -40°C to 85°C
Operating Temperature: -23°C to 55°C
Humidity: 95% relative max.