AT4B is an extremely versatile 24 Hour 365 Day Event Timers designed to support a wide range of applications. Such applications include: Home and Building Automation, Security, Access Control, Lighting Control, Etc.

• Input

  • 12 to 24 VAC or VDC operation.

• Relay

  • Standby current: 20mA with relays off combined with 40mA for each relay on.
  • Four (4) Form "C" relay contacts are rated 10A @ 120VAC/28VDC.
  • Each relay operates independently.

• Events/Programming

  • Momentary and/or Latching Events.
  • 254 individually programmed daily/weekly events.
  • Block programming capacity can accommodate a total of 1778 events per week.
  • 254 programmable Holiday dates.

• Features

  • EE Prom memory protects against loss of programming due to power failure.
  • Clock synchronization 60Hz (AC operation).
  • Accurate crystal controlled clock (DC operation).
  • "First man in" option.
  • Standard or Daylight Savings Time settings.
  • Automatic compensation for leap year.

• Battery Backup

  • Built-in charger for 12VDC sealed lead acid or gel type batteries (Max. charge current 300mA).
  • Lithium battery backup maintains clock.
  • Order Altronix part # LB2032.

• Display

  • Alphanumeric LCD display simplifies programming.

• Temperature

  • Operating -20ºC to 49ºC (-4ºF to 120ºF).
  • Storage -25ºC to 70ºC (-13ºF to 158ºF).
  • Relative Humidity 85% +/- 5%.