• AT4 and AT4B are 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.
• EE Prom memory protects against loss of
programming due to power failure.
• Clock synchronization 60Hz (AC operation).
• Accurate crystal controlled clock (DC operation).
• 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.
• “First man in” option.
• Alphanumeric LCD display simplifies programming.
• 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).
• Lithium battery backup maintains clock.
Order Altronix part # LB2032.
• User friendly programming.
AT4, AT4B Annual Event Timer
Rev. DSAT4_B - A10F
Overview
Specifications
AT4
• AT4 w/enclosure.
AT4B
• Timer only.
AT4
Board Dimensions (approximate)
AT4B: 8”L x 4.5”W x 1.25”H
Mounting Diagram
7.2400
5.4500
Ø0.1710
4.9500
3.7000
2.6600
2.6600
3.7000
3.5400
Enclosure Dimensions
AT4: 12.25”H x 7.75”W x 4.5”D
Altronix Corp. - 140 58th Street, Brooklyn, NY 11220 • 718-567-8181 • 888-258-7669 • altronix.com
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