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.
- 12 to 24 volts AC or DC operation.
- Standby current: 20mA with relays off combined with 40mA for each relay on.
- Four (4) Form "C" relay contacts are rated 10 amp @ 120VAC/28VDC.
- Each relay operates independently.
- 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 events.
- 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.
- Built-in charger for 12VDC sealed lead acid or gel type batteries (Max. charge current 300mA).
- Alphanumeric LCD display simplifies programming.
- Operating temperature: -20C to 49C ambient.