All voltages < 20 mA plus load current requirements.
Timing Range Tolerance
Minimum time - 15% +0%, maximum time - 0% +15%. Example: The -3 timing range operates in the 2 - 100 second range with 0 - 1 meg ohm external timing resistor could exhibit a minimum time of 1.7 seconds (2 seconds - 15%) with 0 ohms external timing resistance, and a maximum time of 115 seconds (100 seconds + 15%) with an external timing resistor of 1 meg ohm. The extended range to 1000 seconds using 10 meg ohms external timing resistance could be as high as 1150 seconds (1000 seconds + 15%).
Timing Resistor Rating
Worst case power dissipation never exceeds 15 milliwatts.
Timing Resistor Tolerance
Timing range specified is guaranteed as a minimum using 5% resistors.
Timing Variation
Less than 6% of set point over specified temperature and voltage range.
Repeatability Of Timing Period
±1%nominal.
Recycle Time
Operating voltage must be removed for a minimum of 200 milliseconds to guarantee all timing and output circuits have reset.
Start Switch
SPST-NO closes to initiate an output interval. Switch must be rated for low level operation down to 500 microamperes at 12V DC. When operating in the Single-Shot mode (terminals 6 & 7 jumpered) the Initiate switch must be closed for a minimum of 50mS to assure a full single-shot output timing interval. The Initiate switch may be reclosed 50mS after the timing interval has completed and the output switch turned off.
Output Rating
-A & -C models rated for 70mA to 1A inductive with inrush currents to 15 A for 8 mS. -B & -D models rated for 70 mA to 5 A inductive with inrush currents to 40A for 8 mS. The -B & -D models can be extended to operate as high as 10A providing the metal base of the timer is maintained at a temperature no greater than 85°C. This can generally be achieved if ambient temperature does not exceed 30°C and the timer is mounted to a metal chassis that provides a minimum of 15 cubic inches of heat sink. Apply a thermal compound between the timer’s base and the chassis.
Zero Voltage Switching
-A & -B AC models provide zero voltage switching within ±50 microseconds of zero volts (standard), -C & -D AC models provide random voltage switching.
Output Voltage Dropin "ON" State
2 volts maximum for DC models, 3 volts maximum for AC models.
Leakage Current in "OFF" State
2 mA maximum for DC models, 4 mA maximum for AC models.
Transient Protection
Protected by silicon transient suppressors which respond within 1 x 1012seconds to a peak pulse power dissipation of 1500 watts, with surge currents to 200 amperes for durations up to 1/120 second at 25° C. Maximum transient voltage protection is 6000 volts as delivered through a source resistance of 30 ohms with a maximum duration of 8.3 milliseconds.
Dielectric
1500V rms all terminals to case on -A & -C models, to heat sink on -B & -D.
Operating Temperature
-20°C to +85°C.
Series Features
4310 Interval / Single-Shot Timing Module
Series Description:The model 4310 can perform as either an interval timer or as a single-shot timer. This model controls DC loads to 1 Ampere and AC loads to 10 Amperes. The AC models provide zero-voltage switching (standard) or random-voltage switching (cost effective) dependant on the output dash number selected. To use as a single-shot timer, install a jumper across terminals 6 & 7, then a full time delay is achieved with only a momentary start switch closure. Without the jumper, the unit operates as an interval timer, requiring the start switch to be closed for the entire timing period.
