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Delay On Break - Retriggerable
Multi Range Time Delay Relays

 

T3M Series
 

T3M Series

The T3M Series is a Delay On Break time delay relay featuring easy to program multiple time ranges and digital time selection with extremely high accuracy and repeatability. Programming is accomplished using a 5 position rotary switch to select one of five time ranges. A 3-digit pushbutton switch selects the amount of time delay required.
 
Logic Funtion
Logic FunctionVoltage is continuously applied to the timer. Depending upon the model, either a switch closure or application of control voltage* causes the relay coil to be energized and remain so as long as the switch is held closed or control voltage is applied. Opening the switch or removing the control voltage starts the timing cycle. At the end of the preset time delay, the relay coil de-energizes and the timer is ready for a new timing cycle. If the start switch is re-closed or control voltage is reapplied during timing, the timer will reset and will not start timing until the start switch is opened or control voltage is removed. Control leads should be shielded when close to other leads.

 
Features
  • UR File #E59090
  • Microprocessor Controlled Timing Circuit
  • Easy 3-Digit Time Cycle Setting
  • Time Cycles From 050 mS To Over 16 Hours
  • Superior Transient Protection
  • Flame-Retardant Polycarbonate Housing
  • 100% Life Tested
  • Five Time Ranges, User Selectable
  • ±0.1% Repeatability
  • Timing Light
  • Reinforced Base Locator Pin
  • Made in U.S.A.
Specifications
Time Delay
Adjustment: 3 digit pushbutton switch
Range: 50 mS to 999 minutes in 5 ranges
Repeatability: ± 0.1%, ± 20 mS over specified timing range
Accuracy:±1% of set time, plus fixed error of 75 mS max. (10 mS typical)
Power On Response Time: 50 mS maximum
Power Off Reset Time: Requires power interruption of 150 mS minimum
Start Switch Closure Time: 20 mS to initiate timing cycle; 50 mS to reset delay during timing cycle
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: 2 VA maximum
Frequency: 50/60 Hz

Output
Type: Relay Contacts, 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 		Protection
Transient Voltage: 12 and 24 volt timers are protected by an 8.8 joule metal oxide varistor; 120 volt timers are protected by a 30 joule metal oxide varistor
Dielectric Breakdown: 1500 VAC, RMS minimum at 60 Hz between input and outputs and between outputs
Timing Light Logic: Flashing during timing; Full On after time out

Mechanical
Termination: 11-pin plug
Mounting: Socket Mount - Part Number MSO-0011P-012

Environmental
Storage Temperature: -23°C to 70°C
Operating Temperature: -23°C to 55°C
Humidity: 95% relative

Timing
Selectable Time Ranges:
   .05 to 9.99 seconds
   .1 to 99.9 seconds
    1 to 999 seconds
   .1 to 99.9 minutes
    1 to 999 minutes
(Times less than 50 mS are not recommended due to the response time of the mechanical relay)