PLUG-IN RELAY TIMER, IC DIGITAL
TNKA Timers
Timing Mode | Repeat Cycle. On/Off Delay
Category | Timer with Relay
Series | TNKA
TNKA Repeat Cycle units meet the needs of customers who require IC digital timing circuits with octal, magnal round and QC bases for plug-in installation. Available in SPDT and DPDT relay forms up to 10 amps with fixed or adjustable time periods.
Timing Mode
Application of input voltage to the timer starts the “On” time delay, and energizes the relay.
At the end of the “On” time delay, the relay is de-energized, and the “Off” time delay starts.
At the end of the “Off” time delay, the load is again energized, the timer returns to the “On” time delay, and the cycling continues as long as input voltage is applied.
Removal of the input voltage resets the timer. The “On” and “Off” times are equal.
- CMOS IC digital timing
- Multi-board construction
- Relays are sealed
- Proven circuitry
- Standard octal (8 pin), magnal (11 pin) plug-ins or 4.75 mm (0.187") blade terminal mountings
- Fixed or variable time adjustment
- Optional remote time adjustment
- Timing ranges from 0.1 to 1000 seconds standard (special time settings and ranges up to 72 hours also available)
- 0.1% Repeat accuracy
- 100% Operational testing before shipping

- Input Voltages
VAC: 24, 120, 230, 50/60Hz
VDC: 12, 24
Special AC or DC voltages available
- Operating Voltage
±20% of nameplate voltage
- Relay Contact Ratings
5 amps DPDT, 10 amps DPDT optional
- Repeat Accuracy
±0.1% under fixed operating conditions
- Reset time
50 milliseconds
- Tolerances
Fixed: ±10%, Optional: ±5%, ±1%
Variable: +20%, -0%, Optional: +10%, -0%
- Life Expectancy
Mechanical: 1 million operations
Electrical: Up to 100,000 operations at full current load
- Protection
Polarity Protection: All DC units have reverse polarity protection
Transient Protection: 25 joules
- Temperature Ranges:
Storage: -40°C to +85°C
Operating: -25°C to +65°C
- Housing Material
High-impact, UL-approved black Lexan