Counter/Timer : AT8SDN Series

DIN W48×H48mm Star-Delta Timer

DIN W48×H48mm Star-Delta Timer

Star Delta timer AT8SDN Series is the analog timer realizing wide range of power supply (100-240VAC 50/60Hz / 24-240VDC). It is easy to check output status by built-in LED display and to control having wide range of setting time and switching time in order to satisfy customers’ needs. The series is commonly used for starting large capacity motors.

*Realization of wide range of power supply
: 24-240VAC 50/60Hz, 24-240VDC, 12VDC
*This is upgraded model from AT8SD series.
*Wide range of setting time and switching time.
UT1(Setting time) : Selectable 5, 10, 50, 100sec
UT2(Switching time) : Selectable 0.05, 0.1, 0.2, 0.3, 0.4, 0.5sec
*Easy setting of time, switching time on front panel.
*Built-in LED indicator for output status.
*Application : Starting large capacity motors

Specification Table

Model		AT8SDN
Function		Star-delta timer
Control time setting range		0.5 to 100 sec.
Power supply		100-240VAC 50/60Hz / 24-240VDC
Allowable voltage range		90 to 110% of rated voltage
Power consumption		100-240VAC : 3.2VA, 24-240VDC : 1.5W
Reset time		Max. 100ms
Timing operation		Power ON start type
Control	Contact type	contact : SPST(1a), A contact : SPST(1a)
output	Contact capacity	250VAC 5A resistive load
Relay	Mechanical	Min. 10,000,000 operations
life cycle	Electrical	Min. 100,000 operatlons(250VAC 5A resistive load)
Repeat error		Max. ±0.2% ±10ms
ASettlng error		Max. ±5% ±50ms
Voltage error		Max. ±0.5%
Temperature error		Max. ±2%
(그림) Switching time error		Max. ±25%
Insulation resistance		100MΩ(at 500VDC megger)
Dielectric strength		2000VAC 50/60Hz for 1 minute
Noise strength		±2kV the square wave noise(pulse width : 1㎲) by the noise simulator
Vibration	Mechanical	0.75mm amplitude at frequency of 10 to 55Hz(for 1 min.) In each of X, Y, Z directions for 1 hours
	Malfunction	0.5mm amplitude at frequency of 10 to 55Hz (for 1 min.) In each of X, Y, Z directions for 10 minutes
Shock	Mechanical	300m/s²(Approx. 30G) in each of X, Y, Z directions for 3 times
	Malfunction	100m/s²(Approx. 10G) in each of X, Y, Z directions for 3 times
Environ-ment	Ambient temperature	-10 to 55℃, storage: -25 to 65℃
	Ambient humidity	35 to 85%RH, storage: 35 to 85%RH
Approval		CE,UL
Unit weight		Approx. 90g

※Environment resistance is rated at no freezing or condensation.