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T3 Series
 


Delay On Break - Retriggerable
Time Delay Relays
T3 Series
 
Logic Funtion
Logic FunctionVoltage is applied to the timer at all times. Upon a closure of a normally open isolated start switch, the output relay is activated and remains so as long as the switch is kept closed. When the start switch is opened, timing starts. At the end of the preset time delay, the output relay is de-activated and the timer is ready for a new cycle.
Note: 1) Do not apply voltage or ground to the start switch; 2) Switch leads should be shielded when running close to other wires; 3) If the start switch is reclosed during timing, the timer will reset and will not start timing until Start switch is opened.
Features
  • UR File #E59090
  • Digital Timing Circuit
  • ±1% Repeatability
  • Superior transient Protection
  • Internal Components Supported By Heavy-duty Chassis
  • Flame-Retardant Polycarbonate Housing
  • 100% Life Tested
  • Time Delays To 1 Hour
  • No False Contact Transfer When Reset During Timing
  • Fiberglass Reinforced Circuit Board
  • Reinforced Locator Pin
  • Made in U.S.A.
Specifications
Time Delay
Adjustment: Knob, factory fixed on special order (Minimum order required)
Range: 50 mS to 1 hour in 11 ranges
Repeatability: ±1% at constant temperature
Accuracy: Maximum time -0%, +10%
                    Minimum time +0%. -50%
Reset Time: 400 milliseconds maximum
Start Switch Closure Time: 20 mS to initiate timing; 50 mS to reset delay during timing

Input
Operating Voltage: 24, 120 VAC; 12, 24 VDC ±10% (D.C. models have reverse polarity protection. Unfiltered input voltage to them must be full-wave rectified)
Power Consumption: 3 VA maximum
Frequency: 50/60 Hz

Output
Type: Relay Contacts, S.P.D.T. (1 form C) or D.P.D.T. (2 form C) Silver Cad. Oxide material
Rating: 10 amp. max. resistive at 240 volts A.C.; 100 mA at 5 VDC min. Load current
Life: Mechanical -10,000,000 operations
          Full Load - 500,000 operations